diff options
Diffstat (limited to 'vendor/github.com/prometheus/client_golang')
54 files changed, 829 insertions, 3275 deletions
diff --git a/vendor/github.com/prometheus/client_golang/.travis.yml b/vendor/github.com/prometheus/client_golang/.travis.yml index 85b51152e..d83f31a59 100644 --- a/vendor/github.com/prometheus/client_golang/.travis.yml +++ b/vendor/github.com/prometheus/client_golang/.travis.yml @@ -2,9 +2,8 @@ sudo: false language: go go: - - 1.6.3 - - 1.7 - - 1.8.1 + - 1.5.4 + - 1.6.2 script: - - go test -short ./... + - go test -short ./... diff --git a/vendor/github.com/prometheus/client_golang/AUTHORS.md b/vendor/github.com/prometheus/client_golang/AUTHORS.md new file mode 100644 index 000000000..c5275d5ab --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/AUTHORS.md @@ -0,0 +1,18 @@ +The Prometheus project was started by Matt T. Proud (emeritus) and +Julius Volz in 2012. + +Maintainers of this repository: + +* Björn Rabenstein <beorn@soundcloud.com> + +The following individuals have contributed code to this repository +(listed in alphabetical order): + +* Bernerd Schaefer <bj.schaefer@gmail.com> +* Björn Rabenstein <beorn@soundcloud.com> +* Daniel Bornkessel <daniel@soundcloud.com> +* Jeff Younker <jeff@drinktomi.com> +* Julius Volz <julius.volz@gmail.com> +* Matt T. Proud <matt.proud@gmail.com> +* Tobias Schmidt <ts@soundcloud.com> + diff --git a/vendor/github.com/prometheus/client_golang/CONTRIBUTING.md b/vendor/github.com/prometheus/client_golang/CONTRIBUTING.md index 40503edbf..5705f0fbe 100644 --- a/vendor/github.com/prometheus/client_golang/CONTRIBUTING.md +++ b/vendor/github.com/prometheus/client_golang/CONTRIBUTING.md @@ -2,9 +2,9 @@ Prometheus uses GitHub to manage reviews of pull requests. -* If you have a trivial fix or improvement, go ahead and create a pull request, - addressing (with `@...`) the maintainer of this repository (see - [MAINTAINERS.md](MAINTAINERS.md)) in the description of the pull request. +* If you have a trivial fix or improvement, go ahead and create a pull + request, addressing (with `@...`) one or more of the maintainers + (see [AUTHORS.md](AUTHORS.md)) in the description of the pull request. * If you plan to do something more involved, first discuss your ideas on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers). diff --git a/vendor/github.com/prometheus/client_golang/MAINTAINERS.md b/vendor/github.com/prometheus/client_golang/MAINTAINERS.md deleted file mode 100644 index 3ede55fe1..000000000 --- a/vendor/github.com/prometheus/client_golang/MAINTAINERS.md +++ /dev/null @@ -1 +0,0 @@ -* Björn Rabenstein <beorn@soundcloud.com> diff --git a/vendor/github.com/prometheus/client_golang/README.md b/vendor/github.com/prometheus/client_golang/README.md index 479290d27..557eacf5a 100644 --- a/vendor/github.com/prometheus/client_golang/README.md +++ b/vendor/github.com/prometheus/client_golang/README.md @@ -1,7 +1,6 @@ # Prometheus Go client library [](https://travis-ci.org/prometheus/client_golang) -[](https://goreportcard.com/report/github.com/prometheus/client_golang) This is the [Go](http://golang.org) client library for [Prometheus](http://prometheus.io). It has two separate parts, one for @@ -30,8 +29,7 @@ The [`api/prometheus` directory](https://github.com/prometheus/client_golang/tree/master/api/prometheus) contains the client for the [Prometheus HTTP API](http://prometheus.io/docs/querying/api/). It allows you -to write Go applications that query time series data from a Prometheus -server. It is still in alpha stage. +to write Go applications that query time series data from a Prometheus server. ## Where is `model`, `extraction`, and `text`? diff --git a/vendor/github.com/prometheus/client_golang/api/client.go b/vendor/github.com/prometheus/client_golang/api/client.go deleted file mode 100644 index bf2672466..000000000 --- a/vendor/github.com/prometheus/client_golang/api/client.go +++ /dev/null @@ -1,131 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.7 - -// Package api provides clients for the HTTP APIs. -package api - -import ( - "context" - "io/ioutil" - "net" - "net/http" - "net/url" - "path" - "strings" - "time" -) - -// DefaultRoundTripper is used if no RoundTripper is set in Config. -var DefaultRoundTripper http.RoundTripper = &http.Transport{ - Proxy: http.ProxyFromEnvironment, - Dial: (&net.Dialer{ - Timeout: 30 * time.Second, - KeepAlive: 30 * time.Second, - }).Dial, - TLSHandshakeTimeout: 10 * time.Second, -} - -// Config defines configuration parameters for a new client. -type Config struct { - // The address of the Prometheus to connect to. - Address string - - // RoundTripper is used by the Client to drive HTTP requests. If not - // provided, DefaultRoundTripper will be used. - RoundTripper http.RoundTripper -} - -func (cfg *Config) roundTripper() http.RoundTripper { - if cfg.RoundTripper == nil { - return DefaultRoundTripper - } - return cfg.RoundTripper -} - -// Client is the interface for an API client. -type Client interface { - URL(ep string, args map[string]string) *url.URL - Do(context.Context, *http.Request) (*http.Response, []byte, error) -} - -// NewClient returns a new Client. -// -// It is safe to use the returned Client from multiple goroutines. -func NewClient(cfg Config) (Client, error) { - u, err := url.Parse(cfg.Address) - if err != nil { - return nil, err - } - u.Path = strings.TrimRight(u.Path, "/") - - return &httpClient{ - endpoint: u, - client: http.Client{Transport: cfg.roundTripper()}, - }, nil -} - -type httpClient struct { - endpoint *url.URL - client http.Client -} - -func (c *httpClient) URL(ep string, args map[string]string) *url.URL { - p := path.Join(c.endpoint.Path, ep) - - for arg, val := range args { - arg = ":" + arg - p = strings.Replace(p, arg, val, -1) - } - - u := *c.endpoint - u.Path = p - - return &u -} - -func (c *httpClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { - if ctx != nil { - req = req.WithContext(ctx) - } - resp, err := c.client.Do(req) - defer func() { - if resp != nil { - resp.Body.Close() - } - }() - - if err != nil { - return nil, nil, err - } - - var body []byte - done := make(chan struct{}) - go func() { - body, err = ioutil.ReadAll(resp.Body) - close(done) - }() - - select { - case <-ctx.Done(): - err = resp.Body.Close() - <-done - if err == nil { - err = ctx.Err() - } - case <-done: - } - - return resp, body, err -} diff --git a/vendor/github.com/prometheus/client_golang/api/client_test.go b/vendor/github.com/prometheus/client_golang/api/client_test.go deleted file mode 100644 index 53226d7d2..000000000 --- a/vendor/github.com/prometheus/client_golang/api/client_test.go +++ /dev/null @@ -1,115 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.7 - -package api - -import ( - "net/http" - "net/url" - "testing" -) - -func TestConfig(t *testing.T) { - c := Config{} - if c.roundTripper() != DefaultRoundTripper { - t.Fatalf("expected default roundtripper for nil RoundTripper field") - } -} - -func TestClientURL(t *testing.T) { - tests := []struct { - address string - endpoint string - args map[string]string - expected string - }{ - { - address: "http://localhost:9090", - endpoint: "/test", - expected: "http://localhost:9090/test", - }, - { - address: "http://localhost", - endpoint: "/test", - expected: "http://localhost/test", - }, - { - address: "http://localhost:9090", - endpoint: "test", - expected: "http://localhost:9090/test", - }, - { - address: "http://localhost:9090/prefix", - endpoint: "/test", - expected: "http://localhost:9090/prefix/test", - }, - { - address: "https://localhost:9090/", - endpoint: "/test/", - expected: "https://localhost:9090/test", - }, - { - address: "http://localhost:9090", - endpoint: "/test/:param", - args: map[string]string{ - "param": "content", - }, - expected: "http://localhost:9090/test/content", - }, - { - address: "http://localhost:9090", - endpoint: "/test/:param/more/:param", - args: map[string]string{ - "param": "content", - }, - expected: "http://localhost:9090/test/content/more/content", - }, - { - address: "http://localhost:9090", - endpoint: "/test/:param/more/:foo", - args: map[string]string{ - "param": "content", - "foo": "bar", - }, - expected: "http://localhost:9090/test/content/more/bar", - }, - { - address: "http://localhost:9090", - endpoint: "/test/:param", - args: map[string]string{ - "nonexistant": "content", - }, - expected: "http://localhost:9090/test/:param", - }, - } - - for _, test := range tests { - ep, err := url.Parse(test.address) - if err != nil { - t.Fatal(err) - } - - hclient := &httpClient{ - endpoint: ep, - client: http.Client{Transport: DefaultRoundTripper}, - } - - u := hclient.URL(test.endpoint, test.args) - if u.String() != test.expected { - t.Errorf("unexpected result: got %s, want %s", u, test.expected) - continue - } - } -} diff --git a/vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go b/vendor/github.com/prometheus/client_golang/api/prometheus/api.go index 734a12e7c..3028d741d 100644 --- a/vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go +++ b/vendor/github.com/prometheus/client_golang/api/prometheus/api.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Prometheus Authors +// Copyright 2015 The Prometheus Authors // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at @@ -11,40 +11,41 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build go1.7 - -// Package v1 provides bindings to the Prometheus HTTP API v1: +// Package prometheus provides bindings to the Prometheus HTTP API: // http://prometheus.io/docs/querying/api/ -package v1 +package prometheus import ( - "context" "encoding/json" "fmt" + "io/ioutil" + "net" "net/http" + "net/url" + "path" "strconv" + "strings" "time" - "github.com/prometheus/client_golang/api" "github.com/prometheus/common/model" + "golang.org/x/net/context" + "golang.org/x/net/context/ctxhttp" ) const ( statusAPIError = 422 + apiPrefix = "/api/v1" - apiPrefix = "/api/v1" - - epQuery = apiPrefix + "/query" - epQueryRange = apiPrefix + "/query_range" - epLabelValues = apiPrefix + "/label/:name/values" - epSeries = apiPrefix + "/series" + epQuery = "/query" + epQueryRange = "/query_range" + epLabelValues = "/label/:name/values" + epSeries = "/series" ) -// ErrorType models the different API error types. type ErrorType string -// Possible values for ErrorType. const ( + // The different API error types. ErrBadData ErrorType = "bad_data" ErrTimeout = "timeout" ErrCanceled = "canceled" @@ -62,6 +63,166 @@ func (e *Error) Error() string { return fmt.Sprintf("%s: %s", e.Type, e.Msg) } +// CancelableTransport is like net.Transport but provides +// per-request cancelation functionality. +type CancelableTransport interface { + http.RoundTripper + CancelRequest(req *http.Request) +} + +var DefaultTransport CancelableTransport = &http.Transport{ + Proxy: http.ProxyFromEnvironment, + Dial: (&net.Dialer{ + Timeout: 30 * time.Second, + KeepAlive: 30 * time.Second, + }).Dial, + TLSHandshakeTimeout: 10 * time.Second, +} + +// Config defines configuration parameters for a new client. +type Config struct { + // The address of the Prometheus to connect to. + Address string + + // Transport is used by the Client to drive HTTP requests. If not + // provided, DefaultTransport will be used. + Transport CancelableTransport +} + +func (cfg *Config) transport() CancelableTransport { + if cfg.Transport == nil { + return DefaultTransport + } + return cfg.Transport +} + +type Client interface { + url(ep string, args map[string]string) *url.URL + do(context.Context, *http.Request) (*http.Response, []byte, error) +} + +// New returns a new Client. +// +// It is safe to use the returned Client from multiple goroutines. +func New(cfg Config) (Client, error) { + u, err := url.Parse(cfg.Address) + if err != nil { + return nil, err + } + u.Path = strings.TrimRight(u.Path, "/") + apiPrefix + + return &httpClient{ + endpoint: u, + transport: cfg.transport(), + }, nil +} + +type httpClient struct { + endpoint *url.URL + transport CancelableTransport +} + +func (c *httpClient) url(ep string, args map[string]string) *url.URL { + p := path.Join(c.endpoint.Path, ep) + + for arg, val := range args { + arg = ":" + arg + p = strings.Replace(p, arg, val, -1) + } + + u := *c.endpoint + u.Path = p + + return &u +} + +func (c *httpClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { + resp, err := ctxhttp.Do(ctx, &http.Client{Transport: c.transport}, req) + + defer func() { + if resp != nil { + resp.Body.Close() + } + }() + + if err != nil { + return nil, nil, err + } + + var body []byte + done := make(chan struct{}) + go func() { + body, err = ioutil.ReadAll(resp.Body) + close(done) + }() + + select { + case <-ctx.Done(): + err = resp.Body.Close() + <-done + if err == nil { + err = ctx.Err() + } + case <-done: + } + + return resp, body, err +} + +// apiClient wraps a regular client and processes successful API responses. +// Successful also includes responses that errored at the API level. +type apiClient struct { + Client +} + +type apiResponse struct { + Status string `json:"status"` + Data json.RawMessage `json:"data"` + ErrorType ErrorType `json:"errorType"` + Error string `json:"error"` +} + +func (c apiClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { + resp, body, err := c.Client.do(ctx, req) + if err != nil { + return resp, body, err + } + + code := resp.StatusCode + + if code/100 != 2 && code != statusAPIError { + return resp, body, &Error{ + Type: ErrBadResponse, + Msg: fmt.Sprintf("bad response code %d", resp.StatusCode), + } + } + + var result apiResponse + + if err = json.Unmarshal(body, &result); err != nil { + return resp, body, &Error{ + Type: ErrBadResponse, + Msg: err.Error(), + } + } + + if (code == statusAPIError) != (result.Status == "error") { + err = &Error{ + Type: ErrBadResponse, + Msg: "inconsistent body for response code", + } + } + + if code == statusAPIError && result.Status == "error" { + err = &Error{ + Type: result.ErrorType, + Msg: result.Error, + } + } + + return resp, []byte(result.Data), err +} + // Range represents a sliced time range. type Range struct { // The boundaries of the time range. @@ -70,16 +231,6 @@ type Range struct { Step time.Duration } -// API provides bindings for Prometheus's v1 API. -type API interface { - // Query performs a query for the given time. - Query(ctx context.Context, query string, ts time.Time) (model.Value, error) - // QueryRange performs a query for the given range. - QueryRange(ctx context.Context, query string, r Range) (model.Value, error) - // LabelValues performs a query for the values of the given label. - LabelValues(ctx context.Context, label string) (model.LabelValues, error) -} - // queryResult contains result data for a query. type queryResult struct { Type model.ValueType `json:"resultType"` @@ -122,19 +273,27 @@ func (qr *queryResult) UnmarshalJSON(b []byte) error { return err } -// NewAPI returns a new API for the client. +// QueryAPI provides bindings the Prometheus's query API. +type QueryAPI interface { + // Query performs a query for the given time. + Query(ctx context.Context, query string, ts time.Time) (model.Value, error) + // Query performs a query for the given range. + QueryRange(ctx context.Context, query string, r Range) (model.Value, error) +} + +// NewQueryAPI returns a new QueryAPI for the client. // -// It is safe to use the returned API from multiple goroutines. -func NewAPI(c api.Client) API { - return &httpAPI{client: apiClient{c}} +// It is safe to use the returned QueryAPI from multiple goroutines. +func NewQueryAPI(c Client) QueryAPI { + return &httpQueryAPI{client: apiClient{c}} } -type httpAPI struct { - client api.Client +type httpQueryAPI struct { + client Client } -func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) { - u := h.client.URL(epQuery, nil) +func (h *httpQueryAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) { + u := h.client.url(epQuery, nil) q := u.Query() q.Set("query", query) @@ -142,12 +301,9 @@ func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model. u.RawQuery = q.Encode() - req, err := http.NewRequest("GET", u.String(), nil) - if err != nil { - return nil, err - } + req, _ := http.NewRequest("GET", u.String(), nil) - _, body, err := h.client.Do(ctx, req) + _, body, err := h.client.do(ctx, req) if err != nil { return nil, err } @@ -158,8 +314,8 @@ func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model. return model.Value(qres.v), err } -func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) { - u := h.client.URL(epQueryRange, nil) +func (h *httpQueryAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) { + u := h.client.url(epQueryRange, nil) q := u.Query() var ( @@ -175,12 +331,9 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model. u.RawQuery = q.Encode() - req, err := http.NewRequest("GET", u.String(), nil) - if err != nil { - return nil, err - } + req, _ := http.NewRequest("GET", u.String(), nil) - _, body, err := h.client.Do(ctx, req) + _, body, err := h.client.do(ctx, req) if err != nil { return nil, err } @@ -190,72 +343,3 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model. return model.Value(qres.v), err } - -func (h *httpAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) { - u := h.client.URL(epLabelValues, map[string]string{"name": label}) - req, err := http.NewRequest(http.MethodGet, u.String(), nil) - if err != nil { - return nil, err - } - _, body, err := h.client.Do(ctx, req) - if err != nil { - return nil, err - } - var labelValues model.LabelValues - err = json.Unmarshal(body, &labelValues) - return labelValues, err -} - -// apiClient wraps a regular client and processes successful API responses. -// Successful also includes responses that errored at the API level. -type apiClient struct { - api.Client -} - -type apiResponse struct { - Status string `json:"status"` - Data json.RawMessage `json:"data"` - ErrorType ErrorType `json:"errorType"` - Error string `json:"error"` -} - -func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { - resp, body, err := c.Client.Do(ctx, req) - if err != nil { - return resp, body, err - } - - code := resp.StatusCode - - if code/100 != 2 && code != statusAPIError { - return resp, body, &Error{ - Type: ErrBadResponse, - Msg: fmt.Sprintf("bad response code %d", resp.StatusCode), - } - } - - var result apiResponse - - if err = json.Unmarshal(body, &result); err != nil { - return resp, body, &Error{ - Type: ErrBadResponse, - Msg: err.Error(), - } - } - - if (code == statusAPIError) != (result.Status == "error") { - err = &Error{ - Type: ErrBadResponse, - Msg: "inconsistent body for response code", - } - } - - if code == statusAPIError && result.Status == "error" { - err = &Error{ - Type: result.ErrorType, - Msg: result.Error, - } - } - - return resp, []byte(result.Data), err -} diff --git a/vendor/github.com/prometheus/client_golang/api/prometheus/v1/api_test.go b/vendor/github.com/prometheus/client_golang/api/prometheus/api_test.go index 2c8b1b2cb..87d3e408e 100644 --- a/vendor/github.com/prometheus/client_golang/api/prometheus/v1/api_test.go +++ b/vendor/github.com/prometheus/client_golang/api/prometheus/api_test.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Prometheus Authors +// Copyright 2015 The Prometheus Authors // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at @@ -11,203 +11,118 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build go1.7 - -package v1 +package prometheus import ( - "context" "encoding/json" "fmt" "net/http" "net/url" "reflect" - "strings" "testing" "time" "github.com/prometheus/common/model" + "golang.org/x/net/context" ) -type apiTest struct { - do func() (interface{}, error) - inErr error - inRes interface{} - - reqPath string - reqParam url.Values - reqMethod string - res interface{} - err error -} - -type apiTestClient struct { - *testing.T - curTest apiTest -} - -func (c *apiTestClient) URL(ep string, args map[string]string) *url.URL { - path := ep - for k, v := range args { - path = strings.Replace(path, ":"+k, v, -1) - } - u := &url.URL{ - Host: "test:9090", - Path: path, - } - return u -} - -func (c *apiTestClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { - - test := c.curTest - - if req.URL.Path != test.reqPath { - c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path) - } - if req.Method != test.reqMethod { - c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method) - } - - b, err := json.Marshal(test.inRes) - if err != nil { - c.Fatal(err) - } - - resp := &http.Response{} - if test.inErr != nil { - resp.StatusCode = statusAPIError - } else { - resp.StatusCode = http.StatusOK +func TestConfig(t *testing.T) { + c := Config{} + if c.transport() != DefaultTransport { + t.Fatalf("expected default transport for nil Transport field") } - - return resp, b, test.inErr } -func TestAPIs(t *testing.T) { - - testTime := time.Now() - - client := &apiTestClient{T: t} - - queryAPI := &httpAPI{ - client: client, - } - - doQuery := func(q string, ts time.Time) func() (interface{}, error) { - return func() (interface{}, error) { - return queryAPI.Query(context.Background(), q, ts) - } - } - - doQueryRange := func(q string, rng Range) func() (interface{}, error) { - return func() (interface{}, error) { - return queryAPI.QueryRange(context.Background(), q, rng) - } - } - - doLabelValues := func(label string) func() (interface{}, error) { - return func() (interface{}, error) { - return queryAPI.LabelValues(context.Background(), label) - } - } - - queryTests := []apiTest{ +func TestClientURL(t *testing.T) { + tests := []struct { + address string + endpoint string + args map[string]string + expected string + }{ { - do: doQuery("2", testTime), - inRes: &queryResult{ - Type: model.ValScalar, - Result: &model.Scalar{ - Value: 2, - Timestamp: model.TimeFromUnix(testTime.Unix()), - }, - }, - - reqMethod: "GET", - reqPath: "/api/v1/query", - reqParam: url.Values{ - "query": []string{"2"}, - "time": []string{testTime.Format(time.RFC3339Nano)}, - }, - res: &model.Scalar{ - Value: 2, - Timestamp: model.TimeFromUnix(testTime.Unix()), - }, + address: "http://localhost:9090", + endpoint: "/test", + expected: "http://localhost:9090/test", }, { - do: doQuery("2", testTime), - inErr: fmt.Errorf("some error"), - - reqMethod: "GET", - reqPath: "/api/v1/query", - reqParam: url.Values{ - "query": []string{"2"}, - "time": []string{testTime.Format(time.RFC3339Nano)}, + address: "http://localhost", + endpoint: "/test", + expected: "http://localhost/test", + }, + { + address: "http://localhost:9090", + endpoint: "test", + expected: "http://localhost:9090/test", + }, + { + address: "http://localhost:9090/prefix", + endpoint: "/test", + expected: "http://localhost:9090/prefix/test", + }, + { + address: "https://localhost:9090/", + endpoint: "/test/", + expected: "https://localhost:9090/test", + }, + { + address: "http://localhost:9090", + endpoint: "/test/:param", + args: map[string]string{ + "param": "content", }, - err: fmt.Errorf("some error"), + expected: "http://localhost:9090/test/content", }, - { - do: doQueryRange("2", Range{ - Start: testTime.Add(-time.Minute), - End: testTime, - Step: time.Minute, - }), - inErr: fmt.Errorf("some error"), - - reqMethod: "GET", - reqPath: "/api/v1/query_range", - reqParam: url.Values{ - "query": []string{"2"}, - "start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)}, - "end": []string{testTime.Format(time.RFC3339Nano)}, - "step": []string{time.Minute.String()}, + address: "http://localhost:9090", + endpoint: "/test/:param/more/:param", + args: map[string]string{ + "param": "content", }, - err: fmt.Errorf("some error"), + expected: "http://localhost:9090/test/content/more/content", }, - { - do: doLabelValues("mylabel"), - inRes: []string{"val1", "val2"}, - reqMethod: "GET", - reqPath: "/api/v1/label/mylabel/values", - res: model.LabelValues{"val1", "val2"}, + address: "http://localhost:9090", + endpoint: "/test/:param/more/:foo", + args: map[string]string{ + "param": "content", + "foo": "bar", + }, + expected: "http://localhost:9090/test/content/more/bar", }, - { - do: doLabelValues("mylabel"), - inErr: fmt.Errorf("some error"), - reqMethod: "GET", - reqPath: "/api/v1/label/mylabel/values", - err: fmt.Errorf("some error"), + address: "http://localhost:9090", + endpoint: "/test/:param", + args: map[string]string{ + "nonexistant": "content", + }, + expected: "http://localhost:9090/test/:param", }, } - var tests []apiTest - tests = append(tests, queryTests...) - for _, test := range tests { - client.curTest = test - - res, err := test.do() + ep, err := url.Parse(test.address) + if err != nil { + t.Fatal(err) + } - if test.err != nil { - if err == nil { - t.Errorf("expected error %q but got none", test.err) - continue - } - if err.Error() != test.err.Error() { - t.Errorf("unexpected error: want %s, got %s", test.err, err) - } - continue + hclient := &httpClient{ + endpoint: ep, + transport: DefaultTransport, } - if err != nil { - t.Errorf("unexpected error: %s", err) + + u := hclient.url(test.endpoint, test.args) + if u.String() != test.expected { + t.Errorf("unexpected result: got %s, want %s", u, test.expected) continue } - if !reflect.DeepEqual(res, test.res) { - t.Errorf("unexpected result: want %v, got %v", test.res, res) + // The apiClient must return exactly the same result as the httpClient. + aclient := &apiClient{hclient} + + u = aclient.url(test.endpoint, test.args) + if u.String() != test.expected { + t.Errorf("unexpected result: got %s, want %s", u, test.expected) } } } @@ -226,11 +141,11 @@ type apiClientTest struct { err *Error } -func (c *testClient) URL(ep string, args map[string]string) *url.URL { +func (c *testClient) url(ep string, args map[string]string) *url.URL { return nil } -func (c *testClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { +func (c *testClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { if ctx == nil { c.Fatalf("context was not passed down") } @@ -356,7 +271,7 @@ func TestAPIClientDo(t *testing.T) { tc.ch <- test - _, body, err := client.Do(context.Background(), tc.req) + _, body, err := client.do(context.Background(), tc.req) if test.err != nil { if err == nil { @@ -379,3 +294,160 @@ func TestAPIClientDo(t *testing.T) { } } } + +type apiTestClient struct { + *testing.T + curTest apiTest +} + +type apiTest struct { + do func() (interface{}, error) + inErr error + inRes interface{} + + reqPath string + reqParam url.Values + reqMethod string + res interface{} + err error +} + +func (c *apiTestClient) url(ep string, args map[string]string) *url.URL { + u := &url.URL{ + Host: "test:9090", + Path: apiPrefix + ep, + } + return u +} + +func (c *apiTestClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) { + + test := c.curTest + + if req.URL.Path != test.reqPath { + c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path) + } + if req.Method != test.reqMethod { + c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method) + } + + b, err := json.Marshal(test.inRes) + if err != nil { + c.Fatal(err) + } + + resp := &http.Response{} + if test.inErr != nil { + resp.StatusCode = statusAPIError + } else { + resp.StatusCode = http.StatusOK + } + + return resp, b, test.inErr +} + +func TestAPIs(t *testing.T) { + + testTime := time.Now() + + client := &apiTestClient{T: t} + + queryApi := &httpQueryAPI{ + client: client, + } + + doQuery := func(q string, ts time.Time) func() (interface{}, error) { + return func() (interface{}, error) { + return queryApi.Query(context.Background(), q, ts) + } + } + + doQueryRange := func(q string, rng Range) func() (interface{}, error) { + return func() (interface{}, error) { + return queryApi.QueryRange(context.Background(), q, rng) + } + } + + queryTests := []apiTest{ + { + do: doQuery("2", testTime), + inRes: &queryResult{ + Type: model.ValScalar, + Result: &model.Scalar{ + Value: 2, + Timestamp: model.TimeFromUnix(testTime.Unix()), + }, + }, + + reqMethod: "GET", + reqPath: "/api/v1/query", + reqParam: url.Values{ + "query": []string{"2"}, + "time": []string{testTime.Format(time.RFC3339Nano)}, + }, + res: &model.Scalar{ + Value: 2, + Timestamp: model.TimeFromUnix(testTime.Unix()), + }, + }, + { + do: doQuery("2", testTime), + inErr: fmt.Errorf("some error"), + + reqMethod: "GET", + reqPath: "/api/v1/query", + reqParam: url.Values{ + "query": []string{"2"}, + "time": []string{testTime.Format(time.RFC3339Nano)}, + }, + err: fmt.Errorf("some error"), + }, + + { + do: doQueryRange("2", Range{ + Start: testTime.Add(-time.Minute), + End: testTime, + Step: time.Minute, + }), + inErr: fmt.Errorf("some error"), + + reqMethod: "GET", + reqPath: "/api/v1/query_range", + reqParam: url.Values{ + "query": []string{"2"}, + "start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)}, + "end": []string{testTime.Format(time.RFC3339Nano)}, + "step": []string{time.Minute.String()}, + }, + err: fmt.Errorf("some error"), + }, + } + + var tests []apiTest + tests = append(tests, queryTests...) + + for _, test := range tests { + client.curTest = test + + res, err := test.do() + + if test.err != nil { + if err == nil { + t.Errorf("expected error %q but got none", test.err) + continue + } + if err.Error() != test.err.Error() { + t.Errorf("unexpected error: want %s, got %s", test.err, err) + } + continue + } + if err != nil { + t.Errorf("unexpected error: %s", err) + continue + } + + if !reflect.DeepEqual(res, test.res) { + t.Errorf("unexpected result: want %v, got %v", test.res, res) + } + } +} diff --git a/vendor/github.com/prometheus/client_golang/examples/random/main.go b/vendor/github.com/prometheus/client_golang/examples/random/main.go index eef50d200..563957193 100644 --- a/vendor/github.com/prometheus/client_golang/examples/random/main.go +++ b/vendor/github.com/prometheus/client_golang/examples/random/main.go @@ -18,21 +18,19 @@ package main import ( "flag" - "log" "math" "math/rand" "net/http" "time" "github.com/prometheus/client_golang/prometheus" - "github.com/prometheus/client_golang/prometheus/promhttp" ) var ( addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.") - uniformDomain = flag.Float64("uniform.domain", 0.0002, "The domain for the uniform distribution.") - normDomain = flag.Float64("normal.domain", 0.0002, "The domain for the normal distribution.") - normMean = flag.Float64("normal.mean", 0.00001, "The mean for the normal distribution.") + uniformDomain = flag.Float64("uniform.domain", 200, "The domain for the uniform distribution.") + normDomain = flag.Float64("normal.domain", 200, "The domain for the normal distribution.") + normMean = flag.Float64("normal.mean", 10, "The mean for the normal distribution.") oscillationPeriod = flag.Duration("oscillation-period", 10*time.Minute, "The duration of the rate oscillation period.") ) @@ -42,9 +40,8 @@ var ( // differentiated via a "service" label. rpcDurations = prometheus.NewSummaryVec( prometheus.SummaryOpts{ - Name: "rpc_durations_seconds", - Help: "RPC latency distributions.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "rpc_durations_microseconds", + Help: "RPC latency distributions.", }, []string{"service"}, ) @@ -53,7 +50,7 @@ var ( // normal distribution, with 20 buckets centered on the mean, each // half-sigma wide. rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{ - Name: "rpc_durations_histogram_seconds", + Name: "rpc_durations_histogram_microseconds", Help: "RPC latency distributions.", Buckets: prometheus.LinearBuckets(*normMean-5**normDomain, .5**normDomain, 20), }) @@ -94,13 +91,13 @@ func main() { go func() { for { - v := rand.ExpFloat64() / 1e6 + v := rand.ExpFloat64() rpcDurations.WithLabelValues("exponential").Observe(v) time.Sleep(time.Duration(50*oscillationFactor()) * time.Millisecond) } }() // Expose the registered metrics via HTTP. - http.Handle("/metrics", promhttp.Handler()) - log.Fatal(http.ListenAndServe(*addr, nil)) + http.Handle("/metrics", prometheus.Handler()) + http.ListenAndServe(*addr, nil) } diff --git a/vendor/github.com/prometheus/client_golang/examples/simple/main.go b/vendor/github.com/prometheus/client_golang/examples/simple/main.go index 1fc23249a..19620d2b3 100644 --- a/vendor/github.com/prometheus/client_golang/examples/simple/main.go +++ b/vendor/github.com/prometheus/client_golang/examples/simple/main.go @@ -16,16 +16,15 @@ package main import ( "flag" - "log" "net/http" - "github.com/prometheus/client_golang/prometheus/promhttp" + "github.com/prometheus/client_golang/prometheus" ) var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.") func main() { flag.Parse() - http.Handle("/metrics", promhttp.Handler()) - log.Fatal(http.ListenAndServe(*addr, nil)) + http.Handle("/metrics", prometheus.Handler()) + http.ListenAndServe(*addr, nil) } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go b/vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go index faad39b4c..a3d86698b 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go @@ -129,9 +129,8 @@ func BenchmarkGaugeNoLabels(b *testing.B) { func BenchmarkSummaryWithLabelValues(b *testing.B) { m := NewSummaryVec( SummaryOpts{ - Name: "benchmark_summary", - Help: "A summary to benchmark it.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "benchmark_summary", + Help: "A summary to benchmark it.", }, []string{"one", "two", "three"}, ) @@ -144,9 +143,8 @@ func BenchmarkSummaryWithLabelValues(b *testing.B) { func BenchmarkSummaryNoLabels(b *testing.B) { m := NewSummary(SummaryOpts{ - Name: "benchmark_summary", - Help: "A summary to benchmark it.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "benchmark_summary", + Help: "A summary to benchmark it.", }, ) b.ReportAllocs() diff --git a/vendor/github.com/prometheus/client_golang/prometheus/counter.go b/vendor/github.com/prometheus/client_golang/prometheus/counter.go index 72d5256a5..ee37949ad 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/counter.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/counter.go @@ -30,8 +30,16 @@ type Counter interface { Metric Collector - // Inc increments the counter by 1. Use Add to increment it by arbitrary - // non-negative values. + // Set is used to set the Counter to an arbitrary value. It is only used + // if you have to transfer a value from an external counter into this + // Prometheus metric. Do not use it for regular handling of a + // Prometheus counter (as it can be used to break the contract of + // monotonically increasing values). + // + // Deprecated: Use NewConstMetric to create a counter for an external + // value. A Counter should never be set. + Set(float64) + // Inc increments the counter by 1. Inc() // Add adds the given value to the counter. It panics if the value is < // 0. diff --git a/vendor/github.com/prometheus/client_golang/prometheus/desc.go b/vendor/github.com/prometheus/client_golang/prometheus/desc.go index 1835b16f6..77f4b30e8 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/desc.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/desc.go @@ -16,15 +16,20 @@ package prometheus import ( "errors" "fmt" + "regexp" "sort" "strings" "github.com/golang/protobuf/proto" - "github.com/prometheus/common/model" dto "github.com/prometheus/client_model/go" ) +var ( + metricNameRE = regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_:]*$`) + labelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$") +) + // reservedLabelPrefix is a prefix which is not legal in user-supplied // label names. const reservedLabelPrefix = "__" @@ -73,7 +78,7 @@ type Desc struct { // Help string. Each Desc with the same fqName must have the same // dimHash. dimHash uint64 - // err is an error that occurred during construction. It is reported on + // err is an error that occured during construction. It is reported on // registration time. err error } @@ -98,7 +103,7 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) * d.err = errors.New("empty help string") return d } - if !model.IsValidMetricName(model.LabelValue(fqName)) { + if !metricNameRE.MatchString(fqName) { d.err = fmt.Errorf("%q is not a valid metric name", fqName) return d } @@ -195,6 +200,6 @@ func (d *Desc) String() string { } func checkLabelName(l string) bool { - return model.LabelName(l).IsValid() && + return labelNameRE.MatchString(l) && !strings.HasPrefix(l, reservedLabelPrefix) } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/doc.go b/vendor/github.com/prometheus/client_golang/prometheus/doc.go index 1fdef9edb..b15a2d3b9 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/doc.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/doc.go @@ -17,7 +17,7 @@ // Pushgateway (package push). // // All exported functions and methods are safe to be used concurrently unless -// specified otherwise. +//specified otherwise. // // A Basic Example // @@ -59,7 +59,7 @@ // // The Handler function provides a default handler to expose metrics // // via an HTTP server. "/metrics" is the usual endpoint for that. // http.Handle("/metrics", promhttp.Handler()) -// log.Fatal(http.ListenAndServe(":8080", nil)) +// http.ListenAndServe(":8080", nil) // } // // @@ -69,7 +69,7 @@ // Metrics // // The number of exported identifiers in this package might appear a bit -// overwhelming. However, in addition to the basic plumbing shown in the example +// overwhelming. Hovever, in addition to the basic plumbing shown in the example // above, you only need to understand the different metric types and their // vector versions for basic usage. // @@ -95,8 +95,8 @@ // SummaryVec, HistogramVec, and UntypedVec are not. // // To create instances of Metrics and their vector versions, you need a suitable -// …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts, HistogramOpts, or -// UntypedOpts. +// …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts, +// HistogramOpts, or UntypedOpts. // // Custom Collectors and constant Metrics // @@ -114,8 +114,8 @@ // Metric instances “on the fly” using NewConstMetric, NewConstHistogram, and // NewConstSummary (and their respective Must… versions). That will happen in // the Collect method. The Describe method has to return separate Desc -// instances, representative of the “throw-away” metrics to be created later. -// NewDesc comes in handy to create those Desc instances. +// instances, representative of the “throw-away” metrics to be created +// later. NewDesc comes in handy to create those Desc instances. // // The Collector example illustrates the use case. You can also look at the // source code of the processCollector (mirroring process metrics), the @@ -129,32 +129,32 @@ // Advanced Uses of the Registry // // While MustRegister is the by far most common way of registering a Collector, -// sometimes you might want to handle the errors the registration might cause. -// As suggested by the name, MustRegister panics if an error occurs. With the -// Register function, the error is returned and can be handled. +// sometimes you might want to handle the errors the registration might +// cause. As suggested by the name, MustRegister panics if an error occurs. With +// the Register function, the error is returned and can be handled. // // An error is returned if the registered Collector is incompatible or // inconsistent with already registered metrics. The registry aims for -// consistency of the collected metrics according to the Prometheus data model. -// Inconsistencies are ideally detected at registration time, not at collect -// time. The former will usually be detected at start-up time of a program, -// while the latter will only happen at scrape time, possibly not even on the -// first scrape if the inconsistency only becomes relevant later. That is the -// main reason why a Collector and a Metric have to describe themselves to the -// registry. +// consistency of the collected metrics according to the Prometheus data +// model. Inconsistencies are ideally detected at registration time, not at +// collect time. The former will usually be detected at start-up time of a +// program, while the latter will only happen at scrape time, possibly not even +// on the first scrape if the inconsistency only becomes relevant later. That is +// the main reason why a Collector and a Metric have to describe themselves to +// the registry. // // So far, everything we did operated on the so-called default registry, as it // can be found in the global DefaultRegistry variable. With NewRegistry, you // can create a custom registry, or you can even implement the Registerer or -// Gatherer interfaces yourself. The methods Register and Unregister work in the -// same way on a custom registry as the global functions Register and Unregister -// on the default registry. +// Gatherer interfaces yourself. The methods Register and Unregister work in +// the same way on a custom registry as the global functions Register and +// Unregister on the default registry. // -// There are a number of uses for custom registries: You can use registries with -// special properties, see NewPedanticRegistry. You can avoid global state, as -// it is imposed by the DefaultRegistry. You can use multiple registries at the -// same time to expose different metrics in different ways. You can use separate -// registries for testing purposes. +// There are a number of uses for custom registries: You can use registries +// with special properties, see NewPedanticRegistry. You can avoid global state, +// as it is imposed by the DefaultRegistry. You can use multiple registries at +// the same time to expose different metrics in different ways. You can use +// separate registries for testing purposes. // // Also note that the DefaultRegistry comes registered with a Collector for Go // runtime metrics (via NewGoCollector) and a Collector for process metrics (via @@ -166,20 +166,16 @@ // The Registry implements the Gatherer interface. The caller of the Gather // method can then expose the gathered metrics in some way. Usually, the metrics // are served via HTTP on the /metrics endpoint. That's happening in the example -// above. The tools to expose metrics via HTTP are in the promhttp sub-package. -// (The top-level functions in the prometheus package are deprecated.) +// above. The tools to expose metrics via HTTP are in the promhttp +// sub-package. (The top-level functions in the prometheus package are +// deprecated.) // // Pushing to the Pushgateway // // Function for pushing to the Pushgateway can be found in the push sub-package. // -// Graphite Bridge -// -// Functions and examples to push metrics from a Gatherer to Graphite can be -// found in the graphite sub-package. -// // Other Means of Exposition // -// More ways of exposing metrics can easily be added by following the approaches -// of the existing implementations. +// More ways of exposing metrics can easily be added. Sending metrics to +// Graphite would be an example that will soon be implemented. package prometheus diff --git a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_complex_test.go b/vendor/github.com/prometheus/client_golang/prometheus/example_timer_complex_test.go deleted file mode 100644 index 763788098..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_complex_test.go +++ /dev/null @@ -1,71 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus_test - -import ( - "net/http" - - "github.com/prometheus/client_golang/prometheus" -) - -var ( - // apiRequestDuration tracks the duration separate for each HTTP status - // class (1xx, 2xx, ...). This creates a fair amount of time series on - // the Prometheus server. Usually, you would track the duration of - // serving HTTP request without partitioning by outcome. Do something - // like this only if needed. Also note how only status classes are - // tracked, not every single status code. The latter would create an - // even larger amount of time series. Request counters partitioned by - // status code are usually OK as each counter only creates one time - // series. Histograms are way more expensive, so partition with care and - // only where you really need separate latency tracking. Partitioning by - // status class is only an example. In concrete cases, other partitions - // might make more sense. - apiRequestDuration = prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "api_request_duration_seconds", - Help: "Histogram for the request duration of the public API, partitioned by status class.", - Buckets: prometheus.ExponentialBuckets(0.1, 1.5, 5), - }, - []string{"status_class"}, - ) -) - -func handler(w http.ResponseWriter, r *http.Request) { - status := http.StatusOK - // The ObserverFunc gets called by the deferred ObserveDuration and - // decides wich Histogram's Observe method is called. - timer := prometheus.NewTimer(prometheus.ObserverFunc(func(v float64) { - switch { - case status >= 500: // Server error. - apiRequestDuration.WithLabelValues("5xx").Observe(v) - case status >= 400: // Client error. - apiRequestDuration.WithLabelValues("4xx").Observe(v) - case status >= 300: // Redirection. - apiRequestDuration.WithLabelValues("3xx").Observe(v) - case status >= 200: // Success. - apiRequestDuration.WithLabelValues("2xx").Observe(v) - default: // Informational. - apiRequestDuration.WithLabelValues("1xx").Observe(v) - } - })) - defer timer.ObserveDuration() - - // Handle the request. Set status accordingly. - // ... -} - -func ExampleTimer_complex() { - http.HandleFunc("/api", handler) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_gauge_test.go b/vendor/github.com/prometheus/client_golang/prometheus/example_timer_gauge_test.go deleted file mode 100644 index 7184a0d1d..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_gauge_test.go +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus_test - -import ( - "os" - - "github.com/prometheus/client_golang/prometheus" -) - -var ( - // If a function is called rarely (i.e. not more often than scrapes - // happen) or ideally only once (like in a batch job), it can make sense - // to use a Gauge for timing the function call. For timing a batch job - // and pushing the result to a Pushgateway, see also the comprehensive - // example in the push package. - funcDuration = prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "example_function_duration_seconds", - Help: "Duration of the last call of an example function.", - }) -) - -func run() error { - // The Set method of the Gauge is used to observe the duration. - timer := prometheus.NewTimer(prometheus.ObserverFunc(funcDuration.Set)) - defer timer.ObserveDuration() - - // Do something. Return errors as encountered. The use of 'defer' above - // makes sure the function is still timed properly. - return nil -} - -func ExampleTimer_gauge() { - if err := run(); err != nil { - os.Exit(1) - } -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_test.go b/vendor/github.com/prometheus/client_golang/prometheus/example_timer_test.go deleted file mode 100644 index bd86bb472..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/example_timer_test.go +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus_test - -import ( - "math/rand" - "time" - - "github.com/prometheus/client_golang/prometheus" -) - -var ( - requestDuration = prometheus.NewHistogram(prometheus.HistogramOpts{ - Name: "example_request_duration_seconds", - Help: "Histogram for the runtime of a simple example function.", - Buckets: prometheus.LinearBuckets(0.01, 0.01, 10), - }) -) - -func ExampleTimer() { - // timer times this example function. It uses a Histogram, but a Summary - // would also work, as both implement Observer. Check out - // https://prometheus.io/docs/practices/histograms/ for differences. - timer := prometheus.NewTimer(requestDuration) - defer timer.ObserveDuration() - - // Do something here that takes time. - time.Sleep(time.Duration(rand.NormFloat64()*10000+50000) * time.Microsecond) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/examples_test.go b/vendor/github.com/prometheus/client_golang/prometheus/examples_test.go index 45f60650f..f87f21a8f 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/examples_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/examples_test.go @@ -113,7 +113,7 @@ func ExampleCounter() { pushComplete := make(chan struct{}) // TODO: Start a goroutine that performs repository pushes and reports // each completion via the channel. - for range pushComplete { + for _ = range pushComplete { pushCounter.Inc() } // Output: @@ -169,8 +169,8 @@ func ExampleInstrumentHandler() { func ExampleLabelPairSorter() { labelPairs := []*dto.LabelPair{ - {Name: proto.String("status"), Value: proto.String("404")}, - {Name: proto.String("method"), Value: proto.String("get")}, + &dto.LabelPair{Name: proto.String("status"), Value: proto.String("404")}, + &dto.LabelPair{Name: proto.String("method"), Value: proto.String("get")}, } sort.Sort(prometheus.LabelPairSorter(labelPairs)) @@ -334,9 +334,8 @@ func ExampleRegister() { func ExampleSummary() { temps := prometheus.NewSummary(prometheus.SummaryOpts{ - Name: "pond_temperature_celsius", - Help: "The temperature of the frog pond.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "pond_temperature_celsius", + Help: "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells. }) // Simulate some observations. @@ -373,9 +372,8 @@ func ExampleSummary() { func ExampleSummaryVec() { temps := prometheus.NewSummaryVec( prometheus.SummaryOpts{ - Name: "pond_temperature_celsius", - Help: "The temperature of the frog pond.", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "pond_temperature_celsius", + Help: "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells. }, []string{"species"}, ) @@ -642,7 +640,6 @@ func ExampleAlreadyRegisteredError() { panic(err) } } - reqCounter.Inc() } func ExampleGatherers() { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go b/vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go index 910dac325..5d3128fae 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go @@ -24,7 +24,7 @@ import ( "github.com/prometheus/client_golang/prometheus" ) -func ExampleNewExpvarCollector() { +func ExampleExpvarCollector() { expvarCollector := prometheus.NewExpvarCollector(map[string]*prometheus.Desc{ "memstats": prometheus.NewDesc( "expvar_memstats", diff --git a/vendor/github.com/prometheus/client_golang/prometheus/gauge.go b/vendor/github.com/prometheus/client_golang/prometheus/gauge.go index 9ab5a3d62..8b70e5141 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/gauge.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/gauge.go @@ -27,21 +27,16 @@ type Gauge interface { // Set sets the Gauge to an arbitrary value. Set(float64) - // Inc increments the Gauge by 1. Use Add to increment it by arbitrary - // values. + // Inc increments the Gauge by 1. Inc() - // Dec decrements the Gauge by 1. Use Sub to decrement it by arbitrary - // values. + // Dec decrements the Gauge by 1. Dec() - // Add adds the given value to the Gauge. (The value can be negative, - // resulting in a decrease of the Gauge.) + // Add adds the given value to the Gauge. (The value can be + // negative, resulting in a decrease of the Gauge.) Add(float64) // Sub subtracts the given value from the Gauge. (The value can be // negative, resulting in an increase of the Gauge.) Sub(float64) - - // SetToCurrentTime sets the Gauge to the current Unix time in seconds. - SetToCurrentTime() } // GaugeOpts is an alias for Opts. See there for doc comments. diff --git a/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go b/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go index 8e5f002c9..48cab4636 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go @@ -19,7 +19,6 @@ import ( "sync" "testing" "testing/quick" - "time" dto "github.com/prometheus/client_model/go" ) @@ -181,22 +180,3 @@ func TestGaugeFunc(t *testing.T) { t.Errorf("expected %q, got %q", expected, got) } } - -func TestGaugeSetCurrentTime(t *testing.T) { - g := NewGauge(GaugeOpts{ - Name: "test_name", - Help: "test help", - }) - g.SetToCurrentTime() - unixTime := float64(time.Now().Unix()) - - m := &dto.Metric{} - g.Write(m) - - delta := unixTime - m.GetGauge().GetValue() - // This is just a smoke test to make sure SetToCurrentTime is not - // totally off. Tests with current time involved are hard... - if math.Abs(delta) > 5 { - t.Errorf("Gauge set to current time deviates from current time by more than 5s, delta is %f seconds", delta) - } -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go b/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go index f96764559..abc9d4ec4 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go @@ -8,9 +8,8 @@ import ( ) type goCollector struct { - goroutinesDesc *Desc - threadsDesc *Desc - gcDesc *Desc + goroutines Gauge + gcDesc *Desc // metrics to describe and collect metrics memStatsMetrics @@ -20,14 +19,11 @@ type goCollector struct { // go process. func NewGoCollector() Collector { return &goCollector{ - goroutinesDesc: NewDesc( - "go_goroutines", - "Number of goroutines that currently exist.", - nil, nil), - threadsDesc: NewDesc( - "go_threads", - "Number of OS threads created", - nil, nil), + goroutines: NewGauge(GaugeOpts{ + Namespace: "go", + Name: "goroutines", + Help: "Number of goroutines that currently exist.", + }), gcDesc: NewDesc( "go_gc_duration_seconds", "A summary of the GC invocation durations.", @@ -52,7 +48,7 @@ func NewGoCollector() Collector { }, { desc: NewDesc( memstatNamespace("sys_bytes"), - "Number of bytes obtained from system.", + "Number of bytes obtained by system. Sum of all system allocations.", nil, nil, ), eval: func(ms *runtime.MemStats) float64 { return float64(ms.Sys) }, @@ -115,12 +111,12 @@ func NewGoCollector() Collector { valType: GaugeValue, }, { desc: NewDesc( - memstatNamespace("heap_released_bytes"), - "Number of heap bytes released to OS.", + memstatNamespace("heap_released_bytes_total"), + "Total number of heap bytes released to OS.", nil, nil, ), eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapReleased) }, - valType: GaugeValue, + valType: CounterValue, }, { desc: NewDesc( memstatNamespace("heap_objects"), @@ -217,14 +213,6 @@ func NewGoCollector() Collector { ), eval: func(ms *runtime.MemStats) float64 { return float64(ms.LastGC) / 1e9 }, valType: GaugeValue, - }, { - desc: NewDesc( - memstatNamespace("gc_cpu_fraction"), - "The fraction of this program's available CPU time used by the GC since the program started.", - nil, nil, - ), - eval: func(ms *runtime.MemStats) float64 { return ms.GCCPUFraction }, - valType: GaugeValue, }, }, } @@ -236,9 +224,9 @@ func memstatNamespace(s string) string { // Describe returns all descriptions of the collector. func (c *goCollector) Describe(ch chan<- *Desc) { - ch <- c.goroutinesDesc - ch <- c.threadsDesc + ch <- c.goroutines.Desc() ch <- c.gcDesc + for _, i := range c.metrics { ch <- i.desc } @@ -246,9 +234,8 @@ func (c *goCollector) Describe(ch chan<- *Desc) { // Collect returns the current state of all metrics of the collector. func (c *goCollector) Collect(ch chan<- Metric) { - ch <- MustNewConstMetric(c.goroutinesDesc, GaugeValue, float64(runtime.NumGoroutine())) - n, _ := runtime.ThreadCreateProfile(nil) - ch <- MustNewConstMetric(c.threadsDesc, GaugeValue, float64(n)) + c.goroutines.Set(float64(runtime.NumGoroutine())) + ch <- c.goroutines var stats debug.GCStats stats.PauseQuantiles = make([]time.Duration, 5) diff --git a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go b/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go index 59dabc09c..9a8858cbd 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go @@ -29,36 +29,33 @@ func TestGoCollector(t *testing.T) { for { select { - case m := <-ch: - // m can be Gauge or Counter, - // currently just test the go_goroutines Gauge - // and ignore others. - if m.Desc().fqName != "go_goroutines" { - continue - } - pb := &dto.Metric{} - m.Write(pb) - if pb.GetGauge() == nil { - continue - } + case metric := <-ch: + switch m := metric.(type) { + // Attention, this also catches Counter... + case Gauge: + pb := &dto.Metric{} + m.Write(pb) + if pb.GetGauge() == nil { + continue + } - if old == -1 { - old = int(pb.GetGauge().GetValue()) - close(waitc) - continue - } + if old == -1 { + old = int(pb.GetGauge().GetValue()) + close(waitc) + continue + } - if diff := int(pb.GetGauge().GetValue()) - old; diff != 1 { - // TODO: This is flaky in highly concurrent situations. - t.Errorf("want 1 new goroutine, got %d", diff) - } + if diff := int(pb.GetGauge().GetValue()) - old; diff != 1 { + // TODO: This is flaky in highly concurrent situations. + t.Errorf("want 1 new goroutine, got %d", diff) + } - // GoCollector performs three sends per call. - // On line 27 we need to receive the second send - // to shut down cleanly. - <-ch - <-ch - return + // GoCollector performs two sends per call. + // On line 27 we need to receive the second send + // to shut down cleanly. + <-ch + return + } case <-time.After(1 * time.Second): t.Fatalf("expected collect timed out") } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge.go b/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge.go deleted file mode 100644 index 11533374b..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge.go +++ /dev/null @@ -1,280 +0,0 @@ -// Copyright 2016 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package graphite provides a bridge to push Prometheus metrics to a Graphite -// server. -package graphite - -import ( - "bufio" - "errors" - "fmt" - "io" - "net" - "sort" - "time" - - "github.com/prometheus/common/expfmt" - "github.com/prometheus/common/model" - "golang.org/x/net/context" - - dto "github.com/prometheus/client_model/go" - - "github.com/prometheus/client_golang/prometheus" -) - -const ( - defaultInterval = 15 * time.Second - millisecondsPerSecond = 1000 -) - -// HandlerErrorHandling defines how a Handler serving metrics will handle -// errors. -type HandlerErrorHandling int - -// These constants cause handlers serving metrics to behave as described if -// errors are encountered. -const ( - // Ignore errors and try to push as many metrics to Graphite as possible. - ContinueOnError HandlerErrorHandling = iota - - // Abort the push to Graphite upon the first error encountered. - AbortOnError -) - -// Config defines the Graphite bridge config. -type Config struct { - // The url to push data to. Required. - URL string - - // The prefix for the pushed Graphite metrics. Defaults to empty string. - Prefix string - - // The interval to use for pushing data to Graphite. Defaults to 15 seconds. - Interval time.Duration - - // The timeout for pushing metrics to Graphite. Defaults to 15 seconds. - Timeout time.Duration - - // The Gatherer to use for metrics. Defaults to prometheus.DefaultGatherer. - Gatherer prometheus.Gatherer - - // The logger that messages are written to. Defaults to no logging. - Logger Logger - - // ErrorHandling defines how errors are handled. Note that errors are - // logged regardless of the configured ErrorHandling provided Logger - // is not nil. - ErrorHandling HandlerErrorHandling -} - -// Bridge pushes metrics to the configured Graphite server. -type Bridge struct { - url string - prefix string - interval time.Duration - timeout time.Duration - - errorHandling HandlerErrorHandling - logger Logger - - g prometheus.Gatherer -} - -// Logger is the minimal interface Bridge needs for logging. Note that -// log.Logger from the standard library implements this interface, and it is -// easy to implement by custom loggers, if they don't do so already anyway. -type Logger interface { - Println(v ...interface{}) -} - -// NewBridge returns a pointer to a new Bridge struct. -func NewBridge(c *Config) (*Bridge, error) { - b := &Bridge{} - - if c.URL == "" { - return nil, errors.New("missing URL") - } - b.url = c.URL - - if c.Gatherer == nil { - b.g = prometheus.DefaultGatherer - } else { - b.g = c.Gatherer - } - - if c.Logger != nil { - b.logger = c.Logger - } - - if c.Prefix != "" { - b.prefix = c.Prefix - } - - var z time.Duration - if c.Interval == z { - b.interval = defaultInterval - } else { - b.interval = c.Interval - } - - if c.Timeout == z { - b.timeout = defaultInterval - } else { - b.timeout = c.Timeout - } - - b.errorHandling = c.ErrorHandling - - return b, nil -} - -// Run starts the event loop that pushes Prometheus metrics to Graphite at the -// configured interval. -func (b *Bridge) Run(ctx context.Context) { - ticker := time.NewTicker(b.interval) - defer ticker.Stop() - for { - select { - case <-ticker.C: - if err := b.Push(); err != nil && b.logger != nil { - b.logger.Println("error pushing to Graphite:", err) - } - case <-ctx.Done(): - return - } - } -} - -// Push pushes Prometheus metrics to the configured Graphite server. -func (b *Bridge) Push() error { - mfs, err := b.g.Gather() - if err != nil || len(mfs) == 0 { - switch b.errorHandling { - case AbortOnError: - return err - case ContinueOnError: - if b.logger != nil { - b.logger.Println("continue on error:", err) - } - default: - panic("unrecognized error handling value") - } - } - - conn, err := net.DialTimeout("tcp", b.url, b.timeout) - if err != nil { - return err - } - defer conn.Close() - - return writeMetrics(conn, mfs, b.prefix, model.Now()) -} - -func writeMetrics(w io.Writer, mfs []*dto.MetricFamily, prefix string, now model.Time) error { - vec, err := expfmt.ExtractSamples(&expfmt.DecodeOptions{ - Timestamp: now, - }, mfs...) - if err != nil { - return err - } - - buf := bufio.NewWriter(w) - for _, s := range vec { - if err := writeSanitized(buf, prefix); err != nil { - return err - } - if err := buf.WriteByte('.'); err != nil { - return err - } - if err := writeMetric(buf, s.Metric); err != nil { - return err - } - if _, err := fmt.Fprintf(buf, " %g %d\n", s.Value, int64(s.Timestamp)/millisecondsPerSecond); err != nil { - return err - } - if err := buf.Flush(); err != nil { - return err - } - } - - return nil -} - -func writeMetric(buf *bufio.Writer, m model.Metric) error { - metricName, hasName := m[model.MetricNameLabel] - numLabels := len(m) - 1 - if !hasName { - numLabels = len(m) - } - - labelStrings := make([]string, 0, numLabels) - for label, value := range m { - if label != model.MetricNameLabel { - labelStrings = append(labelStrings, fmt.Sprintf("%s %s", string(label), string(value))) - } - } - - var err error - switch numLabels { - case 0: - if hasName { - return writeSanitized(buf, string(metricName)) - } - default: - sort.Strings(labelStrings) - if err = writeSanitized(buf, string(metricName)); err != nil { - return err - } - for _, s := range labelStrings { - if err = buf.WriteByte('.'); err != nil { - return err - } - if err = writeSanitized(buf, s); err != nil { - return err - } - } - } - return nil -} - -func writeSanitized(buf *bufio.Writer, s string) error { - prevUnderscore := false - - for _, c := range s { - c = replaceInvalidRune(c) - if c == '_' { - if prevUnderscore { - continue - } - prevUnderscore = true - } else { - prevUnderscore = false - } - if _, err := buf.WriteRune(c); err != nil { - return err - } - } - - return nil -} - -func replaceInvalidRune(c rune) rune { - if c == ' ' { - return '.' - } - if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == ':' || (c >= '0' && c <= '9')) { - return '_' - } - return c -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge_test.go b/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge_test.go deleted file mode 100644 index c2b274c6a..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge_test.go +++ /dev/null @@ -1,309 +0,0 @@ -package graphite - -import ( - "bufio" - "bytes" - "io" - "log" - "net" - "os" - "regexp" - "testing" - "time" - - "github.com/prometheus/common/model" - "golang.org/x/net/context" - - "github.com/prometheus/client_golang/prometheus" -) - -func TestSanitize(t *testing.T) { - testCases := []struct { - in, out string - }{ - {in: "hello", out: "hello"}, - {in: "hE/l1o", out: "hE_l1o"}, - {in: "he,*ll(.o", out: "he_ll_o"}, - {in: "hello_there%^&", out: "hello_there_"}, - } - - var buf bytes.Buffer - w := bufio.NewWriter(&buf) - - for i, tc := range testCases { - if err := writeSanitized(w, tc.in); err != nil { - t.Fatalf("write failed: %v", err) - } - if err := w.Flush(); err != nil { - t.Fatalf("flush failed: %v", err) - } - - if want, got := tc.out, buf.String(); want != got { - t.Fatalf("test case index %d: got sanitized string %s, want %s", i, got, want) - } - - buf.Reset() - } -} - -func TestWriteSummary(t *testing.T) { - sumVec := prometheus.NewSummaryVec( - prometheus.SummaryOpts{ - Name: "name", - Help: "docstring", - ConstLabels: prometheus.Labels{"constname": "constvalue"}, - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, - }, - []string{"labelname"}, - ) - - sumVec.WithLabelValues("val1").Observe(float64(10)) - sumVec.WithLabelValues("val1").Observe(float64(20)) - sumVec.WithLabelValues("val1").Observe(float64(30)) - sumVec.WithLabelValues("val2").Observe(float64(20)) - sumVec.WithLabelValues("val2").Observe(float64(30)) - sumVec.WithLabelValues("val2").Observe(float64(40)) - - reg := prometheus.NewRegistry() - reg.MustRegister(sumVec) - - mfs, err := reg.Gather() - if err != nil { - t.Fatalf("error: %v", err) - } - - now := model.Time(1477043083) - var buf bytes.Buffer - err = writeMetrics(&buf, mfs, "prefix", now) - if err != nil { - t.Fatalf("error: %v", err) - } - - want := `prefix.name.constname.constvalue.labelname.val1.quantile.0_5 20 1477043 -prefix.name.constname.constvalue.labelname.val1.quantile.0_9 30 1477043 -prefix.name.constname.constvalue.labelname.val1.quantile.0_99 30 1477043 -prefix.name_sum.constname.constvalue.labelname.val1 60 1477043 -prefix.name_count.constname.constvalue.labelname.val1 3 1477043 -prefix.name.constname.constvalue.labelname.val2.quantile.0_5 30 1477043 -prefix.name.constname.constvalue.labelname.val2.quantile.0_9 40 1477043 -prefix.name.constname.constvalue.labelname.val2.quantile.0_99 40 1477043 -prefix.name_sum.constname.constvalue.labelname.val2 90 1477043 -prefix.name_count.constname.constvalue.labelname.val2 3 1477043 -` - - if got := buf.String(); want != got { - t.Fatalf("wanted \n%s\n, got \n%s\n", want, got) - } -} - -func TestWriteHistogram(t *testing.T) { - histVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "name", - Help: "docstring", - ConstLabels: prometheus.Labels{"constname": "constvalue"}, - Buckets: []float64{0.01, 0.02, 0.05, 0.1}, - }, - []string{"labelname"}, - ) - - histVec.WithLabelValues("val1").Observe(float64(10)) - histVec.WithLabelValues("val1").Observe(float64(20)) - histVec.WithLabelValues("val1").Observe(float64(30)) - histVec.WithLabelValues("val2").Observe(float64(20)) - histVec.WithLabelValues("val2").Observe(float64(30)) - histVec.WithLabelValues("val2").Observe(float64(40)) - - reg := prometheus.NewRegistry() - reg.MustRegister(histVec) - - mfs, err := reg.Gather() - if err != nil { - t.Fatalf("error: %v", err) - } - - now := model.Time(1477043083) - var buf bytes.Buffer - err = writeMetrics(&buf, mfs, "prefix", now) - if err != nil { - t.Fatalf("error: %v", err) - } - - want := `prefix.name_bucket.constname.constvalue.labelname.val1.le.0_01 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val1.le.0_02 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val1.le.0_05 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val1.le.0_1 0 1477043 -prefix.name_sum.constname.constvalue.labelname.val1 60 1477043 -prefix.name_count.constname.constvalue.labelname.val1 3 1477043 -prefix.name_bucket.constname.constvalue.labelname.val1.le._Inf 3 1477043 -prefix.name_bucket.constname.constvalue.labelname.val2.le.0_01 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val2.le.0_02 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val2.le.0_05 0 1477043 -prefix.name_bucket.constname.constvalue.labelname.val2.le.0_1 0 1477043 -prefix.name_sum.constname.constvalue.labelname.val2 90 1477043 -prefix.name_count.constname.constvalue.labelname.val2 3 1477043 -prefix.name_bucket.constname.constvalue.labelname.val2.le._Inf 3 1477043 -` - if got := buf.String(); want != got { - t.Fatalf("wanted \n%s\n, got \n%s\n", want, got) - } -} - -func TestToReader(t *testing.T) { - cntVec := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "name", - Help: "docstring", - ConstLabels: prometheus.Labels{"constname": "constvalue"}, - }, - []string{"labelname"}, - ) - cntVec.WithLabelValues("val1").Inc() - cntVec.WithLabelValues("val2").Inc() - - reg := prometheus.NewRegistry() - reg.MustRegister(cntVec) - - want := `prefix.name.constname.constvalue.labelname.val1 1 1477043 -prefix.name.constname.constvalue.labelname.val2 1 1477043 -` - mfs, err := reg.Gather() - if err != nil { - t.Fatalf("error: %v", err) - } - - now := model.Time(1477043083) - var buf bytes.Buffer - err = writeMetrics(&buf, mfs, "prefix", now) - if err != nil { - t.Fatalf("error: %v", err) - } - - if got := buf.String(); want != got { - t.Fatalf("wanted \n%s\n, got \n%s\n", want, got) - } -} - -func TestPush(t *testing.T) { - reg := prometheus.NewRegistry() - cntVec := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "name", - Help: "docstring", - ConstLabels: prometheus.Labels{"constname": "constvalue"}, - }, - []string{"labelname"}, - ) - cntVec.WithLabelValues("val1").Inc() - cntVec.WithLabelValues("val2").Inc() - reg.MustRegister(cntVec) - - host := "localhost" - port := ":56789" - b, err := NewBridge(&Config{ - URL: host + port, - Gatherer: reg, - Prefix: "prefix", - }) - if err != nil { - t.Fatalf("error creating bridge: %v", err) - } - - nmg, err := newMockGraphite(port) - if err != nil { - t.Fatalf("error creating mock graphite: %v", err) - } - defer nmg.Close() - - err = b.Push() - if err != nil { - t.Fatalf("error pushing: %v", err) - } - - wants := []string{ - "prefix.name.constname.constvalue.labelname.val1 1", - "prefix.name.constname.constvalue.labelname.val2 1", - } - - select { - case got := <-nmg.readc: - for _, want := range wants { - matched, err := regexp.MatchString(want, got) - if err != nil { - t.Fatalf("error pushing: %v", err) - } - if !matched { - t.Fatalf("missing metric:\nno match for %s received by server:\n%s", want, got) - } - } - return - case err := <-nmg.errc: - t.Fatalf("error reading push: %v", err) - case <-time.After(50 * time.Millisecond): - t.Fatalf("no result from graphite server") - } -} - -func newMockGraphite(port string) (*mockGraphite, error) { - readc := make(chan string) - errc := make(chan error) - ln, err := net.Listen("tcp", port) - if err != nil { - return nil, err - } - - go func() { - conn, err := ln.Accept() - if err != nil { - errc <- err - } - var b bytes.Buffer - io.Copy(&b, conn) - readc <- b.String() - }() - - return &mockGraphite{ - readc: readc, - errc: errc, - Listener: ln, - }, nil -} - -type mockGraphite struct { - readc chan string - errc chan error - - net.Listener -} - -func ExampleBridge() { - b, err := NewBridge(&Config{ - URL: "graphite.example.org:3099", - Gatherer: prometheus.DefaultGatherer, - Prefix: "prefix", - Interval: 15 * time.Second, - Timeout: 10 * time.Second, - ErrorHandling: AbortOnError, - Logger: log.New(os.Stdout, "graphite bridge: ", log.Lshortfile), - }) - if err != nil { - panic(err) - } - - go func() { - // Start something in a goroutine that uses metrics. - }() - - // Push initial metrics to Graphite. Fail fast if the push fails. - if err := b.Push(); err != nil { - panic(err) - } - - // Create a Context to control stopping the Run() loop that pushes - // metrics to Graphite. - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - // Start pushing metrics to Graphite in the Run() loop. - b.Run(ctx) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go index f46eff6ac..9719e8fac 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go @@ -308,23 +308,23 @@ func NewHistogramVec(opts HistogramOpts, labelNames []string) *HistogramVec { } // GetMetricWithLabelValues replaces the method of the same name in -// MetricVec. The difference is that this method returns an Observer and not a -// Metric so that no type conversion to an Observer is required. -func (m *HistogramVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) { +// MetricVec. The difference is that this method returns a Histogram and not a +// Metric so that no type conversion is required. +func (m *HistogramVec) GetMetricWithLabelValues(lvs ...string) (Histogram, error) { metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...) if metric != nil { - return metric.(Observer), err + return metric.(Histogram), err } return nil, err } // GetMetricWith replaces the method of the same name in MetricVec. The -// difference is that this method returns an Observer and not a Metric so that no -// type conversion to an Observer is required. -func (m *HistogramVec) GetMetricWith(labels Labels) (Observer, error) { +// difference is that this method returns a Histogram and not a Metric so that no +// type conversion is required. +func (m *HistogramVec) GetMetricWith(labels Labels) (Histogram, error) { metric, err := m.MetricVec.GetMetricWith(labels) if metric != nil { - return metric.(Observer), err + return metric.(Histogram), err } return nil, err } @@ -333,15 +333,15 @@ func (m *HistogramVec) GetMetricWith(labels Labels) (Observer, error) { // GetMetricWithLabelValues would have returned an error. By not returning an // error, WithLabelValues allows shortcuts like // myVec.WithLabelValues("404", "GET").Observe(42.21) -func (m *HistogramVec) WithLabelValues(lvs ...string) Observer { - return m.MetricVec.WithLabelValues(lvs...).(Observer) +func (m *HistogramVec) WithLabelValues(lvs ...string) Histogram { + return m.MetricVec.WithLabelValues(lvs...).(Histogram) } // With works as GetMetricWith, but panics where GetMetricWithLabels would have // returned an error. By not returning an error, With allows shortcuts like // myVec.With(Labels{"code": "404", "method": "GET"}).Observe(42.21) -func (m *HistogramVec) With(labels Labels) Observer { - return m.MetricVec.With(labels).(Observer) +func (m *HistogramVec) With(labels Labels) Histogram { + return m.MetricVec.With(labels).(Histogram) } type constHistogram struct { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go b/vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go index 5a20f4b6b..d1242e08d 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go @@ -119,28 +119,6 @@ func BenchmarkHistogramWrite8(b *testing.B) { benchmarkHistogramWrite(8, b) } -func TestHistogramNonMonotonicBuckets(t *testing.T) { - testCases := map[string][]float64{ - "not strictly monotonic": {1, 2, 2, 3}, - "not monotonic at all": {1, 2, 4, 3, 5}, - "have +Inf in the middle": {1, 2, math.Inf(+1), 3}, - } - for name, buckets := range testCases { - func() { - defer func() { - if r := recover(); r == nil { - t.Errorf("Buckets %v are %s but NewHistogram did not panic.", buckets, name) - } - }() - _ = NewHistogram(HistogramOpts{ - Name: "test_histogram", - Help: "helpless", - Buckets: buckets, - }) - }() - } -} - // Intentionally adding +Inf here to test if that case is handled correctly. // Also, getCumulativeCounts depends on it. var testBuckets = []float64{-2, -1, -0.5, 0, 0.5, 1, 2, math.Inf(+1)} @@ -286,7 +264,7 @@ func TestHistogramVecConcurrency(t *testing.T) { for i := 0; i < vecLength; i++ { m := &dto.Metric{} s := his.WithLabelValues(string('A' + i)) - s.(Histogram).Write(m) + s.Write(m) if got, want := len(m.Histogram.Bucket), len(testBuckets)-1; got != want { t.Errorf("got %d buckets in protobuf, want %d", got, want) diff --git a/vendor/github.com/prometheus/client_golang/prometheus/http.go b/vendor/github.com/prometheus/client_golang/prometheus/http.go index d485ce0b8..67ee5ac79 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/http.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/http.go @@ -62,8 +62,7 @@ func giveBuf(buf *bytes.Buffer) { // // Deprecated: Please note the issues described in the doc comment of // InstrumentHandler. You might want to consider using promhttp.Handler instead -// (which is not instrumented, but can be instrumented with the tooling provided -// in package promhttp). +// (which is non instrumented). func Handler() http.Handler { return InstrumentHandler("prometheus", UninstrumentedHandler()) } @@ -159,8 +158,7 @@ func nowSeries(t ...time.Time) nower { // value. http_requests_total is a metric vector partitioned by HTTP method // (label name "method") and HTTP status code (label name "code"). // -// Deprecated: InstrumentHandler has several issues. Use the tooling provided in -// package promhttp instead. The issues are the following: +// Deprecated: InstrumentHandler has several issues: // // - It uses Summaries rather than Histograms. Summaries are not useful if // aggregation across multiple instances is required. @@ -174,8 +172,9 @@ func nowSeries(t ...time.Time) nower { // httputil.ReverseProxy is a prominent example for a handler // performing such writes. // -// - It has additional issues with HTTP/2, cf. -// https://github.com/prometheus/client_golang/issues/272. +// Upcoming versions of this package will provide ways of instrumenting HTTP +// handlers that are more flexible and have fewer issues. Please prefer direct +// instrumentation in the meantime. func InstrumentHandler(handlerName string, handler http.Handler) http.HandlerFunc { return InstrumentHandlerFunc(handlerName, handler.ServeHTTP) } @@ -185,13 +184,12 @@ func InstrumentHandler(handlerName string, handler http.Handler) http.HandlerFun // issues). // // Deprecated: InstrumentHandlerFunc is deprecated for the same reasons as -// InstrumentHandler is. Use the tooling provided in package promhttp instead. +// InstrumentHandler is. func InstrumentHandlerFunc(handlerName string, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc { return InstrumentHandlerFuncWithOpts( SummaryOpts{ Subsystem: "http", ConstLabels: Labels{"handler": handlerName}, - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, }, handlerFunc, ) @@ -224,7 +222,7 @@ func InstrumentHandlerFunc(handlerName string, handlerFunc func(http.ResponseWri // SummaryOpts. // // Deprecated: InstrumentHandlerWithOpts is deprecated for the same reasons as -// InstrumentHandler is. Use the tooling provided in package promhttp instead. +// InstrumentHandler is. func InstrumentHandlerWithOpts(opts SummaryOpts, handler http.Handler) http.HandlerFunc { return InstrumentHandlerFuncWithOpts(opts, handler.ServeHTTP) } @@ -235,7 +233,7 @@ func InstrumentHandlerWithOpts(opts SummaryOpts, handler http.Handler) http.Hand // SummaryOpts are used. // // Deprecated: InstrumentHandlerFuncWithOpts is deprecated for the same reasons -// as InstrumentHandler is. Use the tooling provided in package promhttp instead. +// as InstrumentHandler is. func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc { reqCnt := NewCounterVec( CounterOpts{ @@ -247,52 +245,34 @@ func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.Respo }, instLabels, ) - if err := Register(reqCnt); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqCnt = are.ExistingCollector.(*CounterVec) - } else { - panic(err) - } - } opts.Name = "request_duration_microseconds" opts.Help = "The HTTP request latencies in microseconds." reqDur := NewSummary(opts) - if err := Register(reqDur); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqDur = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } opts.Name = "request_size_bytes" opts.Help = "The HTTP request sizes in bytes." reqSz := NewSummary(opts) - if err := Register(reqSz); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqSz = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } opts.Name = "response_size_bytes" opts.Help = "The HTTP response sizes in bytes." resSz := NewSummary(opts) - if err := Register(resSz); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - resSz = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } + + regReqCnt := MustRegisterOrGet(reqCnt).(*CounterVec) + regReqDur := MustRegisterOrGet(reqDur).(Summary) + regReqSz := MustRegisterOrGet(reqSz).(Summary) + regResSz := MustRegisterOrGet(resSz).(Summary) return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { now := time.Now() delegate := &responseWriterDelegator{ResponseWriter: w} - out := computeApproximateRequestSize(r) + out := make(chan int) + urlLen := 0 + if r.URL != nil { + urlLen = len(r.URL.String()) + } + go computeApproximateRequestSize(r, out, urlLen) _, cn := w.(http.CloseNotifier) _, fl := w.(http.Flusher) @@ -310,44 +290,30 @@ func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.Respo method := sanitizeMethod(r.Method) code := sanitizeCode(delegate.status) - reqCnt.WithLabelValues(method, code).Inc() - reqDur.Observe(elapsed) - resSz.Observe(float64(delegate.written)) - reqSz.Observe(float64(<-out)) + regReqCnt.WithLabelValues(method, code).Inc() + regReqDur.Observe(elapsed) + regResSz.Observe(float64(delegate.written)) + regReqSz.Observe(float64(<-out)) }) } -func computeApproximateRequestSize(r *http.Request) <-chan int { - // Get URL length in current go routine for avoiding a race condition. - // HandlerFunc that runs in parallel may modify the URL. - s := 0 - if r.URL != nil { - s += len(r.URL.String()) - } - - out := make(chan int, 1) - - go func() { - s += len(r.Method) - s += len(r.Proto) - for name, values := range r.Header { - s += len(name) - for _, value := range values { - s += len(value) - } +func computeApproximateRequestSize(r *http.Request, out chan int, s int) { + s += len(r.Method) + s += len(r.Proto) + for name, values := range r.Header { + s += len(name) + for _, value := range values { + s += len(value) } - s += len(r.Host) + } + s += len(r.Host) - // N.B. r.Form and r.MultipartForm are assumed to be included in r.URL. + // N.B. r.Form and r.MultipartForm are assumed to be included in r.URL. - if r.ContentLength != -1 { - s += int(r.ContentLength) - } - out <- s - close(out) - }() - - return out + if r.ContentLength != -1 { + s += int(r.ContentLength) + } + out <- s } type responseWriterDelegator struct { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/http_test.go b/vendor/github.com/prometheus/client_golang/prometheus/http_test.go index 7fd4077b9..ffe0418cf 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/http_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/http_test.go @@ -44,10 +44,9 @@ func TestInstrumentHandler(t *testing.T) { opts := SummaryOpts{ Subsystem: "http", ConstLabels: Labels{"handler": "test-handler"}, - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, } - reqCnt := NewCounterVec( + reqCnt := MustRegisterOrGet(NewCounterVec( CounterOpts{ Namespace: opts.Namespace, Subsystem: opts.Subsystem, @@ -56,51 +55,19 @@ func TestInstrumentHandler(t *testing.T) { ConstLabels: opts.ConstLabels, }, instLabels, - ) - err := Register(reqCnt) - if err == nil { - t.Fatal("expected reqCnt to be registered already") - } - if are, ok := err.(AlreadyRegisteredError); ok { - reqCnt = are.ExistingCollector.(*CounterVec) - } else { - t.Fatal("unexpected registration error:", err) - } + )).(*CounterVec) opts.Name = "request_duration_microseconds" opts.Help = "The HTTP request latencies in microseconds." - reqDur := NewSummary(opts) - err = Register(reqDur) - if err == nil { - t.Fatal("expected reqDur to be registered already") - } - if are, ok := err.(AlreadyRegisteredError); ok { - reqDur = are.ExistingCollector.(Summary) - } else { - t.Fatal("unexpected registration error:", err) - } + reqDur := MustRegisterOrGet(NewSummary(opts)).(Summary) opts.Name = "request_size_bytes" opts.Help = "The HTTP request sizes in bytes." - reqSz := NewSummary(opts) - err = Register(reqSz) - if err == nil { - t.Fatal("expected reqSz to be registered already") - } - if _, ok := err.(AlreadyRegisteredError); !ok { - t.Fatal("unexpected registration error:", err) - } + MustRegisterOrGet(NewSummary(opts)) opts.Name = "response_size_bytes" opts.Help = "The HTTP response sizes in bytes." - resSz := NewSummary(opts) - err = Register(resSz) - if err == nil { - t.Fatal("expected resSz to be registered already") - } - if _, ok := err.(AlreadyRegisteredError); !ok { - t.Fatal("unexpected registration error:", err) - } + MustRegisterOrGet(NewSummary(opts)) reqCnt.Reset() diff --git a/vendor/github.com/prometheus/client_golang/prometheus/observer.go b/vendor/github.com/prometheus/client_golang/prometheus/observer.go deleted file mode 100644 index b0520e85e..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/observer.go +++ /dev/null @@ -1,50 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus - -// Observer is the interface that wraps the Observe method, which is used by -// Histogram and Summary to add observations. -type Observer interface { - Observe(float64) -} - -// The ObserverFunc type is an adapter to allow the use of ordinary -// functions as Observers. If f is a function with the appropriate -// signature, ObserverFunc(f) is an Observer that calls f. -// -// This adapter is usually used in connection with the Timer type, and there are -// two general use cases: -// -// The most common one is to use a Gauge as the Observer for a Timer. -// See the "Gauge" Timer example. -// -// The more advanced use case is to create a function that dynamically decides -// which Observer to use for observing the duration. See the "Complex" Timer -// example. -type ObserverFunc func(float64) - -// Observe calls f(value). It implements Observer. -func (f ObserverFunc) Observe(value float64) { - f(value) -} - -// ObserverVec is an interface implemented by `HistogramVec` and `SummaryVec`. -type ObserverVec interface { - GetMetricWith(Labels) (Observer, error) - GetMetricWithLabelValues(lvs ...string) (Observer, error) - With(Labels) Observer - WithLabelValues(...string) Observer - - Collector -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go index 94b2553e1..e31e62e78 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go @@ -19,10 +19,10 @@ type processCollector struct { pid int collectFn func(chan<- Metric) pidFn func() (int, error) - cpuTotal *Desc - openFDs, maxFDs *Desc - vsize, rss *Desc - startTime *Desc + cpuTotal Counter + openFDs, maxFDs Gauge + vsize, rss Gauge + startTime Gauge } // NewProcessCollector returns a collector which exports the current state of @@ -44,45 +44,40 @@ func NewProcessCollectorPIDFn( pidFn func() (int, error), namespace string, ) Collector { - ns := "" - if len(namespace) > 0 { - ns = namespace + "_" - } - c := processCollector{ pidFn: pidFn, collectFn: func(chan<- Metric) {}, - cpuTotal: NewDesc( - ns+"process_cpu_seconds_total", - "Total user and system CPU time spent in seconds.", - nil, nil, - ), - openFDs: NewDesc( - ns+"process_open_fds", - "Number of open file descriptors.", - nil, nil, - ), - maxFDs: NewDesc( - ns+"process_max_fds", - "Maximum number of open file descriptors.", - nil, nil, - ), - vsize: NewDesc( - ns+"process_virtual_memory_bytes", - "Virtual memory size in bytes.", - nil, nil, - ), - rss: NewDesc( - ns+"process_resident_memory_bytes", - "Resident memory size in bytes.", - nil, nil, - ), - startTime: NewDesc( - ns+"process_start_time_seconds", - "Start time of the process since unix epoch in seconds.", - nil, nil, - ), + cpuTotal: NewCounter(CounterOpts{ + Namespace: namespace, + Name: "process_cpu_seconds_total", + Help: "Total user and system CPU time spent in seconds.", + }), + openFDs: NewGauge(GaugeOpts{ + Namespace: namespace, + Name: "process_open_fds", + Help: "Number of open file descriptors.", + }), + maxFDs: NewGauge(GaugeOpts{ + Namespace: namespace, + Name: "process_max_fds", + Help: "Maximum number of open file descriptors.", + }), + vsize: NewGauge(GaugeOpts{ + Namespace: namespace, + Name: "process_virtual_memory_bytes", + Help: "Virtual memory size in bytes.", + }), + rss: NewGauge(GaugeOpts{ + Namespace: namespace, + Name: "process_resident_memory_bytes", + Help: "Resident memory size in bytes.", + }), + startTime: NewGauge(GaugeOpts{ + Namespace: namespace, + Name: "process_start_time_seconds", + Help: "Start time of the process since unix epoch in seconds.", + }), } // Set up process metric collection if supported by the runtime. @@ -95,12 +90,12 @@ func NewProcessCollectorPIDFn( // Describe returns all descriptions of the collector. func (c *processCollector) Describe(ch chan<- *Desc) { - ch <- c.cpuTotal - ch <- c.openFDs - ch <- c.maxFDs - ch <- c.vsize - ch <- c.rss - ch <- c.startTime + ch <- c.cpuTotal.Desc() + ch <- c.openFDs.Desc() + ch <- c.maxFDs.Desc() + ch <- c.vsize.Desc() + ch <- c.rss.Desc() + ch <- c.startTime.Desc() } // Collect returns the current state of all metrics of the collector. @@ -122,19 +117,26 @@ func (c *processCollector) processCollect(ch chan<- Metric) { } if stat, err := p.NewStat(); err == nil { - ch <- MustNewConstMetric(c.cpuTotal, CounterValue, stat.CPUTime()) - ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(stat.VirtualMemory())) - ch <- MustNewConstMetric(c.rss, GaugeValue, float64(stat.ResidentMemory())) + c.cpuTotal.Set(stat.CPUTime()) + ch <- c.cpuTotal + c.vsize.Set(float64(stat.VirtualMemory())) + ch <- c.vsize + c.rss.Set(float64(stat.ResidentMemory())) + ch <- c.rss + if startTime, err := stat.StartTime(); err == nil { - ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime) + c.startTime.Set(startTime) + ch <- c.startTime } } if fds, err := p.FileDescriptorsLen(); err == nil { - ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(fds)) + c.openFDs.Set(float64(fds)) + ch <- c.openFDs } if limits, err := p.NewLimits(); err == nil { - ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(limits.OpenFiles)) + c.maxFDs.Set(float64(limits.OpenFiles)) + ch <- c.maxFDs } } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go index c7acb47fe..d3362dae7 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go @@ -38,18 +38,18 @@ func TestProcessCollector(t *testing.T) { } for _, re := range []*regexp.Regexp{ - regexp.MustCompile("\nprocess_cpu_seconds_total [0-9]"), - regexp.MustCompile("\nprocess_max_fds [1-9]"), - regexp.MustCompile("\nprocess_open_fds [1-9]"), - regexp.MustCompile("\nprocess_virtual_memory_bytes [1-9]"), - regexp.MustCompile("\nprocess_resident_memory_bytes [1-9]"), - regexp.MustCompile("\nprocess_start_time_seconds [0-9.]{10,}"), - regexp.MustCompile("\nfoobar_process_cpu_seconds_total [0-9]"), - regexp.MustCompile("\nfoobar_process_max_fds [1-9]"), - regexp.MustCompile("\nfoobar_process_open_fds [1-9]"), - regexp.MustCompile("\nfoobar_process_virtual_memory_bytes [1-9]"), - regexp.MustCompile("\nfoobar_process_resident_memory_bytes [1-9]"), - regexp.MustCompile("\nfoobar_process_start_time_seconds [0-9.]{10,}"), + regexp.MustCompile("process_cpu_seconds_total [0-9]"), + regexp.MustCompile("process_max_fds [1-9]"), + regexp.MustCompile("process_open_fds [1-9]"), + regexp.MustCompile("process_virtual_memory_bytes [1-9]"), + regexp.MustCompile("process_resident_memory_bytes [1-9]"), + regexp.MustCompile("process_start_time_seconds [0-9.]{10,}"), + regexp.MustCompile("foobar_process_cpu_seconds_total [0-9]"), + regexp.MustCompile("foobar_process_max_fds [1-9]"), + regexp.MustCompile("foobar_process_open_fds [1-9]"), + regexp.MustCompile("foobar_process_virtual_memory_bytes [1-9]"), + regexp.MustCompile("foobar_process_resident_memory_bytes [1-9]"), + regexp.MustCompile("foobar_process_start_time_seconds [0-9.]{10,}"), } { if !re.Match(buf.Bytes()) { t.Errorf("want body to match %s\n%s", re, buf.String()) diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_7.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_7.go deleted file mode 100644 index 5e38c7ca4..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_7.go +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build !go1.8 - -package promhttp - -import ( - "io" - "net/http" -) - -func newDelegator(w http.ResponseWriter) delegator { - d := &responseWriterDelegator{ResponseWriter: w} - - _, cn := w.(http.CloseNotifier) - _, fl := w.(http.Flusher) - _, hj := w.(http.Hijacker) - _, rf := w.(io.ReaderFrom) - if cn && fl && hj && rf { - return &fancyDelegator{d} - } - - return d -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go deleted file mode 100644 index 98b565096..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.8 - -package promhttp - -import ( - "io" - "net/http" -) - -// newDelegator handles the four different methods of upgrading a -// http.ResponseWriter to delegator. -func newDelegator(w http.ResponseWriter) delegator { - d := &responseWriterDelegator{ResponseWriter: w} - - _, cn := w.(http.CloseNotifier) - _, fl := w.(http.Flusher) - _, hj := w.(http.Hijacker) - _, ps := w.(http.Pusher) - _, rf := w.(io.ReaderFrom) - - // Check for the four most common combination of interfaces a - // http.ResponseWriter might implement. - switch { - case cn && fl && hj && rf && ps: - // All interfaces. - return &fancyPushDelegator{ - fancyDelegator: &fancyDelegator{d}, - p: &pushDelegator{d}, - } - case cn && fl && hj && rf: - // All interfaces, except http.Pusher. - return &fancyDelegator{d} - case ps: - // Just http.Pusher. - return &pushDelegator{d} - } - - return d -} - -type fancyPushDelegator struct { - p *pushDelegator - - *fancyDelegator -} - -func (f *fancyPushDelegator) Push(target string, opts *http.PushOptions) error { - return f.p.Push(target, opts) -} - -type pushDelegator struct { - *responseWriterDelegator -} - -func (f *pushDelegator) Push(target string, opts *http.PushOptions) error { - return f.ResponseWriter.(http.Pusher).Push(target, opts) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go index 4c70a7af6..b6dd5a266 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go @@ -11,24 +11,21 @@ // See the License for the specific language governing permissions and // limitations under the License. -// Package promhttp provides tooling around HTTP servers and clients. +// Copyright (c) 2013, The Prometheus Authors +// All rights reserved. // -// First, the package allows the creation of http.Handler instances to expose -// Prometheus metrics via HTTP. promhttp.Handler acts on the -// prometheus.DefaultGatherer. With HandlerFor, you can create a handler for a -// custom registry or anything that implements the Gatherer interface. It also -// allows the creation of handlers that act differently on errors or allow to -// log errors. -// -// Second, the package provides tooling to instrument instances of http.Handler -// via middleware. Middleware wrappers follow the naming scheme -// InstrumentHandlerX, where X describes the intended use of the middleware. -// See each function's doc comment for specific details. +// Use of this source code is governed by a BSD-style license that can be found +// in the LICENSE file. + +// Package promhttp contains functions to create http.Handler instances to +// expose Prometheus metrics via HTTP. In later versions of this package, it +// will also contain tooling to instrument instances of http.Handler and +// http.RoundTripper. // -// Finally, the package allows for an http.RoundTripper to be instrumented via -// middleware. Middleware wrappers follow the naming scheme -// InstrumentRoundTripperX, where X describes the intended use of the -// middleware. See each function's doc comment for specific details. +// promhttp.Handler acts on the prometheus.DefaultGatherer. With HandlerFor, +// you can create a handler for a custom registry or anything that implements +// the Gatherer interface. It also allows to create handlers that act +// differently on errors or allow to log errors. package promhttp import ( diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go index 413ff7baa..d4a7d4a7b 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go @@ -11,6 +11,12 @@ // See the License for the specific language governing permissions and // limitations under the License. +// Copyright (c) 2013, The Prometheus Authors +// All rights reserved. +// +// Use of this source code is governed by a BSD-style license that can be found +// in the LICENSE file. + package promhttp import ( diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go deleted file mode 100644 index 1cf21f217..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go +++ /dev/null @@ -1,95 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package promhttp - -import ( - "net/http" - "time" - - "github.com/prometheus/client_golang/prometheus" -) - -// The RoundTripperFunc type is an adapter to allow the use of ordinary -// functions as RoundTrippers. If f is a function with the appropriate -// signature, RountTripperFunc(f) is a RoundTripper that calls f. -type RoundTripperFunc func(req *http.Request) (*http.Response, error) - -// RoundTrip implements the RoundTripper interface. -func (rt RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error) { - return rt(r) -} - -// InstrumentRoundTripperInFlight is a middleware that wraps the provided -// http.RoundTripper. It sets the provided prometheus.Gauge to the number of -// requests currently handled by the wrapped http.RoundTripper. -// -// See the example for ExampleInstrumentRoundTripperDuration for example usage. -func InstrumentRoundTripperInFlight(gauge prometheus.Gauge, next http.RoundTripper) RoundTripperFunc { - return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { - gauge.Inc() - defer gauge.Dec() - return next.RoundTrip(r) - }) -} - -// InstrumentRoundTripperCounter is a middleware that wraps the provided -// http.RoundTripper to observe the request result with the provided CounterVec. -// The CounterVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. Partitioning of the CounterVec happens by HTTP status -// code and/or HTTP method if the respective instance label names are present -// in the CounterVec. For unpartitioned counting, use a CounterVec with -// zero labels. -// -// If the wrapped RoundTripper panics or returns a non-nil error, the Counter -// is not incremented. -// -// See the example for ExampleInstrumentRoundTripperDuration for example usage. -func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.RoundTripper) RoundTripperFunc { - code, method := checkLabels(counter) - - return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { - resp, err := next.RoundTrip(r) - if err == nil { - counter.With(labels(code, method, r.Method, resp.StatusCode)).Inc() - } - return resp, err - }) -} - -// InstrumentRoundTripperDuration is a middleware that wraps the provided -// http.RoundTripper to observe the request duration with the provided ObserverVec. -// The ObserverVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. The Observe method of the Observer in the ObserverVec -// is called with the request duration in seconds. Partitioning happens by HTTP -// status code and/or HTTP method if the respective instance label names are -// present in the ObserverVec. For unpartitioned observations, use an -// ObserverVec with zero labels. Note that partitioning of Histograms is -// expensive and should be used judiciously. -// -// If the wrapped RoundTripper panics or returns a non-nil error, no values are -// reported. -func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundTripper) RoundTripperFunc { - code, method := checkLabels(obs) - - return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { - start := time.Now() - resp, err := next.RoundTrip(r) - if err == nil { - obs.With(labels(code, method, r.Method, resp.StatusCode)).Observe(time.Since(start).Seconds()) - } - return resp, err - }) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go deleted file mode 100644 index b51d91052..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go +++ /dev/null @@ -1,142 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.8 - -package promhttp - -import ( - "context" - "crypto/tls" - "net/http" - "net/http/httptrace" - "time" -) - -// InstrumentTrace is used to offer flexibility in instrumenting the available -// httptrace.ClientTrace hook functions. Each function is passed a float64 -// representing the time in seconds since the start of the http request. A user -// may choose to use separately buckets Histograms, or implement custom -// instance labels on a per function basis. -type InstrumentTrace struct { - GotConn func(float64) - PutIdleConn func(float64) - GotFirstResponseByte func(float64) - Got100Continue func(float64) - DNSStart func(float64) - DNSDone func(float64) - ConnectStart func(float64) - ConnectDone func(float64) - TLSHandshakeStart func(float64) - TLSHandshakeDone func(float64) - WroteHeaders func(float64) - Wait100Continue func(float64) - WroteRequest func(float64) -} - -// InstrumentRoundTripperTrace is a middleware that wraps the provided -// RoundTripper and reports times to hook functions provided in the -// InstrumentTrace struct. Hook functions that are not present in the provided -// InstrumentTrace struct are ignored. Times reported to the hook functions are -// time since the start of the request. Note that partitioning of Histograms -// is expensive and should be used judiciously. -// -// For hook functions that receive an error as an argument, no observations are -// made in the event of a non-nil error value. -// -// See the example for ExampleInstrumentRoundTripperDuration for example usage. -func InstrumentRoundTripperTrace(it *InstrumentTrace, next http.RoundTripper) RoundTripperFunc { - return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { - start := time.Now() - - trace := &httptrace.ClientTrace{ - GotConn: func(_ httptrace.GotConnInfo) { - if it.GotConn != nil { - it.GotConn(time.Since(start).Seconds()) - } - }, - PutIdleConn: func(err error) { - if err != nil { - return - } - if it.PutIdleConn != nil { - it.PutIdleConn(time.Since(start).Seconds()) - } - }, - DNSStart: func(_ httptrace.DNSStartInfo) { - if it.DNSStart != nil { - it.DNSStart(time.Since(start).Seconds()) - } - }, - DNSDone: func(_ httptrace.DNSDoneInfo) { - if it.DNSStart != nil { - it.DNSStart(time.Since(start).Seconds()) - } - }, - ConnectStart: func(_, _ string) { - if it.ConnectStart != nil { - it.ConnectStart(time.Since(start).Seconds()) - } - }, - ConnectDone: func(_, _ string, err error) { - if err != nil { - return - } - if it.ConnectDone != nil { - it.ConnectDone(time.Since(start).Seconds()) - } - }, - GotFirstResponseByte: func() { - if it.GotFirstResponseByte != nil { - it.GotFirstResponseByte(time.Since(start).Seconds()) - } - }, - Got100Continue: func() { - if it.Got100Continue != nil { - it.Got100Continue(time.Since(start).Seconds()) - } - }, - TLSHandshakeStart: func() { - if it.TLSHandshakeStart != nil { - it.TLSHandshakeStart(time.Since(start).Seconds()) - } - }, - TLSHandshakeDone: func(_ tls.ConnectionState, err error) { - if err != nil { - return - } - if it.TLSHandshakeDone != nil { - it.TLSHandshakeDone(time.Since(start).Seconds()) - } - }, - WroteHeaders: func() { - if it.WroteHeaders != nil { - it.WroteHeaders(time.Since(start).Seconds()) - } - }, - Wait100Continue: func() { - if it.Wait100Continue != nil { - it.Wait100Continue(time.Since(start).Seconds()) - } - }, - WroteRequest: func(_ httptrace.WroteRequestInfo) { - if it.WroteRequest != nil { - it.WroteRequest(time.Since(start).Seconds()) - } - }, - } - r = r.WithContext(httptrace.WithClientTrace(context.Background(), trace)) - - return next.RoundTrip(r) - }) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8_test.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8_test.go deleted file mode 100644 index 7e3f5229f..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8_test.go +++ /dev/null @@ -1,195 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.8 - -package promhttp - -import ( - "log" - "net/http" - "testing" - "time" - - "github.com/prometheus/client_golang/prometheus" -) - -func TestClientMiddlewareAPI(t *testing.T) { - client := http.DefaultClient - client.Timeout = 1 * time.Second - - reg := prometheus.NewRegistry() - - inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "client_in_flight_requests", - Help: "A gauge of in-flight requests for the wrapped client.", - }) - - counter := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "client_api_requests_total", - Help: "A counter for requests from the wrapped client.", - }, - []string{"code", "method"}, - ) - - dnsLatencyVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "dns_duration_seconds", - Help: "Trace dns latency histogram.", - Buckets: []float64{.005, .01, .025, .05}, - }, - []string{"event"}, - ) - - tlsLatencyVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "tls_duration_seconds", - Help: "Trace tls latency histogram.", - Buckets: []float64{.05, .1, .25, .5}, - }, - []string{"event"}, - ) - - histVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "request_duration_seconds", - Help: "A histogram of request latencies.", - Buckets: prometheus.DefBuckets, - }, - []string{"method"}, - ) - - reg.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge) - - trace := &InstrumentTrace{ - DNSStart: func(t float64) { - dnsLatencyVec.WithLabelValues("dns_start") - }, - DNSDone: func(t float64) { - dnsLatencyVec.WithLabelValues("dns_done") - }, - TLSHandshakeStart: func(t float64) { - tlsLatencyVec.WithLabelValues("tls_handshake_start") - }, - TLSHandshakeDone: func(t float64) { - tlsLatencyVec.WithLabelValues("tls_handshake_done") - }, - } - - client.Transport = InstrumentRoundTripperInFlight(inFlightGauge, - InstrumentRoundTripperCounter(counter, - InstrumentRoundTripperTrace(trace, - InstrumentRoundTripperDuration(histVec, http.DefaultTransport), - ), - ), - ) - - resp, err := client.Get("http://google.com") - if err != nil { - t.Fatalf("%v", err) - } - defer resp.Body.Close() -} - -func ExampleInstrumentRoundTripperDuration() { - client := http.DefaultClient - client.Timeout = 1 * time.Second - - inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "client_in_flight_requests", - Help: "A gauge of in-flight requests for the wrapped client.", - }) - - counter := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "client_api_requests_total", - Help: "A counter for requests from the wrapped client.", - }, - []string{"code", "method"}, - ) - - // dnsLatencyVec uses custom buckets based on expected dns durations. - // It has an instance label "event", which is set in the - // DNSStart and DNSDonehook functions defined in the - // InstrumentTrace struct below. - dnsLatencyVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "dns_duration_seconds", - Help: "Trace dns latency histogram.", - Buckets: []float64{.005, .01, .025, .05}, - }, - []string{"event"}, - ) - - // tlsLatencyVec uses custom buckets based on expected tls durations. - // It has an instance label "event", which is set in the - // TLSHandshakeStart and TLSHandshakeDone hook functions defined in the - // InstrumentTrace struct below. - tlsLatencyVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "tls_duration_seconds", - Help: "Trace tls latency histogram.", - Buckets: []float64{.05, .1, .25, .5}, - }, - []string{"event"}, - ) - - // histVec has no labels, making it a zero-dimensional ObserverVec. - histVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "request_duration_seconds", - Help: "A histogram of request latencies.", - Buckets: prometheus.DefBuckets, - }, - []string{}, - ) - - // Register all of the metrics in the standard registry. - prometheus.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge) - - // Define functions for the available httptrace.ClientTrace hook - // functions that we want to instrument. - trace := &InstrumentTrace{ - DNSStart: func(t float64) { - dnsLatencyVec.WithLabelValues("dns_start") - }, - DNSDone: func(t float64) { - dnsLatencyVec.WithLabelValues("dns_done") - }, - TLSHandshakeStart: func(t float64) { - tlsLatencyVec.WithLabelValues("tls_handshake_start") - }, - TLSHandshakeDone: func(t float64) { - tlsLatencyVec.WithLabelValues("tls_handshake_done") - }, - } - - // Wrap the default RoundTripper with middleware. - roundTripper := InstrumentRoundTripperInFlight(inFlightGauge, - InstrumentRoundTripperCounter(counter, - InstrumentRoundTripperTrace(trace, - InstrumentRoundTripperDuration(histVec, http.DefaultTransport), - ), - ), - ) - - // Set the RoundTripper on our client. - client.Transport = roundTripper - - resp, err := client.Get("http://google.com") - if err != nil { - log.Printf("error: %v", err) - } - defer resp.Body.Close() -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go deleted file mode 100644 index 1beab4b42..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go +++ /dev/null @@ -1,473 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package promhttp - -import ( - "bufio" - "io" - "net" - "net/http" - "strconv" - "strings" - "time" - - dto "github.com/prometheus/client_model/go" - - "github.com/prometheus/client_golang/prometheus" -) - -// magicString is used for the hacky label test in checkLabels. Remove once fixed. -const magicString = "zZgWfBxLqvG8kc8IMv3POi2Bb0tZI3vAnBx+gBaFi9FyPzB/CzKUer1yufDa" - -// InstrumentHandlerInFlight is a middleware that wraps the provided -// http.Handler. It sets the provided prometheus.Gauge to the number of -// requests currently handled by the wrapped http.Handler. -// -// See the example for InstrumentHandlerDuration for example usage. -func InstrumentHandlerInFlight(g prometheus.Gauge, next http.Handler) http.Handler { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - g.Inc() - defer g.Dec() - next.ServeHTTP(w, r) - }) -} - -// InstrumentHandlerDuration is a middleware that wraps the provided -// http.Handler to observe the request duration with the provided ObserverVec. -// The ObserverVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. The Observe method of the Observer in the ObserverVec -// is called with the request duration in seconds. Partitioning happens by HTTP -// status code and/or HTTP method if the respective instance label names are -// present in the ObserverVec. For unpartitioned observations, use an -// ObserverVec with zero labels. Note that partitioning of Histograms is -// expensive and should be used judiciously. -// -// If the wrapped Handler does not set a status code, a status code of 200 is assumed. -// -// If the wrapped Handler panics, no values are reported. -func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc { - code, method := checkLabels(obs) - - if code { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - now := time.Now() - d := newDelegator(w) - next.ServeHTTP(d, r) - - obs.With(labels(code, method, r.Method, d.Status())).Observe(time.Since(now).Seconds()) - }) - } - - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - now := time.Now() - next.ServeHTTP(w, r) - obs.With(labels(code, method, r.Method, 0)).Observe(time.Since(now).Seconds()) - }) -} - -// InstrumentHandlerCounter is a middleware that wraps the provided -// http.Handler to observe the request result with the provided CounterVec. -// The CounterVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. Partitioning of the CounterVec happens by HTTP status -// code and/or HTTP method if the respective instance label names are present -// in the CounterVec. For unpartitioned counting, use a CounterVec with -// zero labels. -// -// If the wrapped Handler does not set a status code, a status code of 200 is assumed. -// -// If the wrapped Handler panics, the Counter is not incremented. -// -// See the example for InstrumentHandlerDuration for example usage. -func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler) http.HandlerFunc { - code, method := checkLabels(counter) - - if code { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - d := newDelegator(w) - next.ServeHTTP(d, r) - counter.With(labels(code, method, r.Method, d.Status())).Inc() - }) - } - - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - next.ServeHTTP(w, r) - counter.With(labels(code, method, r.Method, 0)).Inc() - }) -} - -// InstrumentHandlerRequestSize is a middleware that wraps the provided -// http.Handler to observe the request size with the provided ObserverVec. -// The ObserverVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. The Observe method of the Observer in the ObserverVec -// is called with the request size in bytes. Partitioning happens by HTTP -// status code and/or HTTP method if the respective instance label names are -// present in the ObserverVec. For unpartitioned observations, use an -// ObserverVec with zero labels. Note that partitioning of Histograms is -// expensive and should be used judiciously. -// -// If the wrapped Handler does not set a status code, a status code of 200 is assumed. -// -// If the wrapped Handler panics, no values are reported. -// -// See the example for InstrumentHandlerDuration for example usage. -func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc { - code, method := checkLabels(obs) - - if code { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - d := newDelegator(w) - next.ServeHTTP(d, r) - size := computeApproximateRequestSize(r) - obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(size)) - }) - } - - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - next.ServeHTTP(w, r) - size := computeApproximateRequestSize(r) - obs.With(labels(code, method, r.Method, 0)).Observe(float64(size)) - }) -} - -// InstrumentHandlerResponseSize is a middleware that wraps the provided -// http.Handler to observe the response size with the provided ObserverVec. -// The ObserverVec must have zero, one, or two labels. The only allowed label -// names are "code" and "method". The function panics if any other instance -// labels are provided. The Observe method of the Observer in the ObserverVec -// is called with the response size in bytes. Partitioning happens by HTTP -// status code and/or HTTP method if the respective instance label names are -// present in the ObserverVec. For unpartitioned observations, use an -// ObserverVec with zero labels. Note that partitioning of Histograms is -// expensive and should be used judiciously. -// -// If the wrapped Handler does not set a status code, a status code of 200 is assumed. -// -// If the wrapped Handler panics, no values are reported. -// -// See the example for InstrumentHandlerDuration for example usage. -func InstrumentHandlerResponseSize(obs prometheus.ObserverVec, next http.Handler) http.Handler { - code, method := checkLabels(obs) - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - d := newDelegator(w) - next.ServeHTTP(d, r) - obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(d.Written())) - }) -} - -func checkLabels(c prometheus.Collector) (code bool, method bool) { - // TODO(beorn7): Remove this hacky way to check for instance labels - // once Descriptors can have their dimensionality queried. - var ( - desc *prometheus.Desc - pm dto.Metric - ) - - descc := make(chan *prometheus.Desc, 1) - c.Describe(descc) - - select { - case desc = <-descc: - default: - panic("no description provided by collector") - } - select { - case <-descc: - panic("more than one description provided by collector") - default: - } - - close(descc) - - if _, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0); err == nil { - return - } - if m, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0, magicString); err == nil { - if err := m.Write(&pm); err != nil { - panic("error checking metric for labels") - } - for _, label := range pm.Label { - name, value := label.GetName(), label.GetValue() - if value != magicString { - continue - } - switch name { - case "code": - code = true - case "method": - method = true - default: - panic("metric partitioned with non-supported labels") - } - return - } - panic("previously set label not found – this must never happen") - } - if m, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0, magicString, magicString); err == nil { - if err := m.Write(&pm); err != nil { - panic("error checking metric for labels") - } - for _, label := range pm.Label { - name, value := label.GetName(), label.GetValue() - if value != magicString { - continue - } - if name == "code" || name == "method" { - continue - } - panic("metric partitioned with non-supported labels") - } - code = true - method = true - return - } - panic("metric partitioned with non-supported labels") -} - -// emptyLabels is a one-time allocation for non-partitioned metrics to avoid -// unnecessary allocations on each request. -var emptyLabels = prometheus.Labels{} - -func labels(code, method bool, reqMethod string, status int) prometheus.Labels { - if !(code || method) { - return emptyLabels - } - labels := prometheus.Labels{} - - if code { - labels["code"] = sanitizeCode(status) - } - if method { - labels["method"] = sanitizeMethod(reqMethod) - } - - return labels -} - -func computeApproximateRequestSize(r *http.Request) int { - s := 0 - if r.URL != nil { - s += len(r.URL.String()) - } - - s += len(r.Method) - s += len(r.Proto) - for name, values := range r.Header { - s += len(name) - for _, value := range values { - s += len(value) - } - } - s += len(r.Host) - - // N.B. r.Form and r.MultipartForm are assumed to be included in r.URL. - - if r.ContentLength != -1 { - s += int(r.ContentLength) - } - return s -} - -func sanitizeMethod(m string) string { - switch m { - case "GET", "get": - return "get" - case "PUT", "put": - return "put" - case "HEAD", "head": - return "head" - case "POST", "post": - return "post" - case "DELETE", "delete": - return "delete" - case "CONNECT", "connect": - return "connect" - case "OPTIONS", "options": - return "options" - case "NOTIFY", "notify": - return "notify" - default: - return strings.ToLower(m) - } -} - -// If the wrapped http.Handler has not set a status code, i.e. the value is -// currently 0, santizeCode will return 200, for consistency with behavior in -// the stdlib. -func sanitizeCode(s int) string { - switch s { - case 100: - return "100" - case 101: - return "101" - - case 200, 0: - return "200" - case 201: - return "201" - case 202: - return "202" - case 203: - return "203" - case 204: - return "204" - case 205: - return "205" - case 206: - return "206" - - case 300: - return "300" - case 301: - return "301" - case 302: - return "302" - case 304: - return "304" - case 305: - return "305" - case 307: - return "307" - - case 400: - return "400" - case 401: - return "401" - case 402: - return "402" - case 403: - return "403" - case 404: - return "404" - case 405: - return "405" - case 406: - return "406" - case 407: - return "407" - case 408: - return "408" - case 409: - return "409" - case 410: - return "410" - case 411: - return "411" - case 412: - return "412" - case 413: - return "413" - case 414: - return "414" - case 415: - return "415" - case 416: - return "416" - case 417: - return "417" - case 418: - return "418" - - case 500: - return "500" - case 501: - return "501" - case 502: - return "502" - case 503: - return "503" - case 504: - return "504" - case 505: - return "505" - - case 428: - return "428" - case 429: - return "429" - case 431: - return "431" - case 511: - return "511" - - default: - return strconv.Itoa(s) - } -} - -type delegator interface { - Status() int - Written() int64 - - http.ResponseWriter -} - -type responseWriterDelegator struct { - http.ResponseWriter - - handler, method string - status int - written int64 - wroteHeader bool -} - -func (r *responseWriterDelegator) Status() int { - return r.status -} - -func (r *responseWriterDelegator) Written() int64 { - return r.written -} - -func (r *responseWriterDelegator) WriteHeader(code int) { - r.status = code - r.wroteHeader = true - r.ResponseWriter.WriteHeader(code) -} - -func (r *responseWriterDelegator) Write(b []byte) (int, error) { - if !r.wroteHeader { - r.WriteHeader(http.StatusOK) - } - n, err := r.ResponseWriter.Write(b) - r.written += int64(n) - return n, err -} - -type fancyDelegator struct { - *responseWriterDelegator -} - -func (r *fancyDelegator) CloseNotify() <-chan bool { - return r.ResponseWriter.(http.CloseNotifier).CloseNotify() -} - -func (r *fancyDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) { - return r.ResponseWriter.(http.Hijacker).Hijack() -} - -func (r *fancyDelegator) Flush() { - r.ResponseWriter.(http.Flusher).Flush() -} - -func (r *fancyDelegator) ReadFrom(re io.Reader) (int64, error) { - if !r.wroteHeader { - r.WriteHeader(http.StatusOK) - } - n, err := r.ResponseWriter.(io.ReaderFrom).ReadFrom(re) - r.written += n - return n, err -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server_test.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server_test.go deleted file mode 100644 index ca9f4bf3c..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server_test.go +++ /dev/null @@ -1,164 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package promhttp - -import ( - "log" - "net/http" - "net/http/httptest" - "testing" - - "github.com/prometheus/client_golang/prometheus" -) - -func TestMiddlewareAPI(t *testing.T) { - reg := prometheus.NewRegistry() - - inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "in_flight_requests", - Help: "A gauge of requests currently being served by the wrapped handler.", - }) - - counter := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "api_requests_total", - Help: "A counter for requests to the wrapped handler.", - }, - []string{"code", "method"}, - ) - - histVec := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "response_duration_seconds", - Help: "A histogram of request latencies.", - Buckets: prometheus.DefBuckets, - ConstLabels: prometheus.Labels{"handler": "api"}, - }, - []string{"method"}, - ) - - responseSize := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "push_request_size_bytes", - Help: "A histogram of request sizes for requests.", - Buckets: []float64{200, 500, 900, 1500}, - }, - []string{}, - ) - - handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - w.Write([]byte("OK")) - }) - - reg.MustRegister(inFlightGauge, counter, histVec, responseSize) - - chain := InstrumentHandlerInFlight(inFlightGauge, - InstrumentHandlerCounter(counter, - InstrumentHandlerDuration(histVec, - InstrumentHandlerResponseSize(responseSize, handler), - ), - ), - ) - - r, _ := http.NewRequest("GET", "www.example.com", nil) - w := httptest.NewRecorder() - chain.ServeHTTP(w, r) -} - -func ExampleInstrumentHandlerDuration() { - inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "in_flight_requests", - Help: "A gauge of requests currently being served by the wrapped handler.", - }) - - counter := prometheus.NewCounterVec( - prometheus.CounterOpts{ - Name: "api_requests_total", - Help: "A counter for requests to the wrapped handler.", - }, - []string{"code", "method"}, - ) - - // pushVec and pullVec are partitioned by the HTTP method and use custom - // buckets based on the expected request duration. ConstLabels are used - // to set a handler label to mark pushVec as tracking the durations for - // pushes and pullVec as tracking the durations for pulls. Note that - // Name, Help, and Buckets need to be the same for consistency, so we - // use the same HistogramOpts after just modifying the ConstLabels. - histogramOpts := prometheus.HistogramOpts{ - Name: "request_duration_seconds", - Help: "A histogram of latencies for requests.", - Buckets: []float64{.25, .5, 1, 2.5, 5, 10}, - ConstLabels: prometheus.Labels{"handler": "push"}, - } - pushVec := prometheus.NewHistogramVec( - histogramOpts, - []string{"method"}, - ) - histogramOpts.ConstLabels = prometheus.Labels{"handler": "pull"} - pullVec := prometheus.NewHistogramVec( - histogramOpts, - []string{"method"}, - ) - - // responseSize has no labels, making it a zero-dimensional - // ObserverVec. - responseSize := prometheus.NewHistogramVec( - prometheus.HistogramOpts{ - Name: "response_size_bytes", - Help: "A histogram of response sizes for requests.", - Buckets: []float64{200, 500, 900, 1500}, - }, - []string{}, - ) - - // Create the handlers that will be wrapped by the middleware. - pushHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - w.Write([]byte("Push")) - }) - pullHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - w.Write([]byte("Pull")) - }) - - // Register all of the metrics in the standard registry. - prometheus.MustRegister(inFlightGauge, counter, pullVec, pushVec, responseSize) - - // Wrap the pushHandler with our shared middleware, but use the - // endpoint-specific pushVec with InstrumentHandlerDuration. - pushChain := InstrumentHandlerInFlight(inFlightGauge, - InstrumentHandlerCounter(counter, - InstrumentHandlerDuration(pushVec, - InstrumentHandlerResponseSize(responseSize, pushHandler), - ), - ), - ) - - // Wrap the pushHandler with the shared middleware, but use the - // endpoint-specific pullVec with InstrumentHandlerDuration. - pullChain := InstrumentHandlerInFlight(inFlightGauge, - InstrumentHandlerCounter(counter, - InstrumentHandlerDuration(pullVec, - InstrumentHandlerResponseSize(responseSize, pullHandler), - ), - ), - ) - - http.Handle("/metrics", Handler()) - http.Handle("/push", pushChain) - http.Handle("/pull", pullChain) - - if err := http.ListenAndServe(":3000", nil); err != nil { - log.Fatal(err) - } -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/push/example_add_from_gatherer_test.go b/vendor/github.com/prometheus/client_golang/prometheus/push/example_add_from_gatherer_test.go deleted file mode 100644 index dd5c10a59..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/push/example_add_from_gatherer_test.go +++ /dev/null @@ -1,83 +0,0 @@ -// Copyright 2016 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Copyright (c) 2013, The Prometheus Authors -// All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file. - -package push_test - -import ( - "fmt" - "time" - - "github.com/prometheus/client_golang/prometheus" - "github.com/prometheus/client_golang/prometheus/push" -) - -var ( - completionTime = prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "db_backup_last_completion_timestamp_seconds", - Help: "The timestamp of the last completion of a DB backup, successful or not.", - }) - successTime = prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "db_backup_last_success_timestamp_seconds", - Help: "The timestamp of the last successful completion of a DB backup.", - }) - duration = prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "db_backup_duration_seconds", - Help: "The duration of the last DB backup in seconds.", - }) - records = prometheus.NewGauge(prometheus.GaugeOpts{ - Name: "db_backup_records_processed", - Help: "The number of records processed in the last DB backup.", - }) -) - -func performBackup() (int, error) { - // Perform the backup and return the number of backed up records and any - // applicable error. - // ... - return 42, nil -} - -func ExampleAddFromGatherer() { - registry := prometheus.NewRegistry() - registry.MustRegister(completionTime, duration, records) - // Note that successTime is not registered at this time. - - start := time.Now() - n, err := performBackup() - records.Set(float64(n)) - duration.Set(time.Since(start).Seconds()) - completionTime.SetToCurrentTime() - if err != nil { - fmt.Println("DB backup failed:", err) - } else { - // Only now register successTime. - registry.MustRegister(successTime) - successTime.SetToCurrentTime() - } - // AddFromGatherer is used here rather than FromGatherer to not delete a - // previously pushed success timestamp in case of a failure of this - // backup. - if err := push.AddFromGatherer( - "db_backup", nil, - "http://pushgateway:9091", - registry, - ); err != nil { - fmt.Println("Could not push to Pushgateway:", err) - } -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/push/examples_test.go b/vendor/github.com/prometheus/client_golang/prometheus/push/examples_test.go index 7e0ac66a5..7f17ca291 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/push/examples_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/push/examples_test.go @@ -15,6 +15,7 @@ package push_test import ( "fmt" + "time" "github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus/push" @@ -23,9 +24,9 @@ import ( func ExampleCollectors() { completionTime := prometheus.NewGauge(prometheus.GaugeOpts{ Name: "db_backup_last_completion_timestamp_seconds", - Help: "The timestamp of the last successful completion of a DB backup.", + Help: "The timestamp of the last succesful completion of a DB backup.", }) - completionTime.SetToCurrentTime() + completionTime.Set(float64(time.Now().Unix())) if err := push.Collectors( "db_backup", push.HostnameGroupingKey(), "http://pushgateway:9091", @@ -34,3 +35,22 @@ func ExampleCollectors() { fmt.Println("Could not push completion time to Pushgateway:", err) } } + +func ExampleRegistry() { + registry := prometheus.NewRegistry() + + completionTime := prometheus.NewGauge(prometheus.GaugeOpts{ + Name: "db_backup_last_completion_timestamp_seconds", + Help: "The timestamp of the last succesful completion of a DB backup.", + }) + registry.MustRegister(completionTime) + + completionTime.Set(float64(time.Now().Unix())) + if err := push.FromGatherer( + "db_backup", push.HostnameGroupingKey(), + "http://pushgateway:9091", + registry, + ); err != nil { + fmt.Println("Could not push completion time to Pushgateway:", err) + } +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/push/push.go b/vendor/github.com/prometheus/client_golang/prometheus/push/push.go index 8fb6f5f17..ae40402f8 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/push/push.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/push/push.go @@ -84,7 +84,7 @@ func push(job string, grouping map[string]string, pushURL string, g prometheus.G } urlComponents := []string{url.QueryEscape(job)} for ln, lv := range grouping { - if !model.LabelName(ln).IsValid() { + if !model.LabelNameRE.MatchString(ln) { return fmt.Errorf("grouping label has invalid name: %s", ln) } if strings.Contains(lv, "/") { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/registry.go b/vendor/github.com/prometheus/client_golang/prometheus/registry.go index 8c6b5bd8e..32a3986b0 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/registry.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/registry.go @@ -152,6 +152,38 @@ func MustRegister(cs ...Collector) { DefaultRegisterer.MustRegister(cs...) } +// RegisterOrGet registers the provided Collector with the DefaultRegisterer and +// returns the Collector, unless an equal Collector was registered before, in +// which case that Collector is returned. +// +// Deprecated: RegisterOrGet is merely a convenience function for the +// implementation as described in the documentation for +// AlreadyRegisteredError. As the use case is relatively rare, this function +// will be removed in a future version of this package to clean up the +// namespace. +func RegisterOrGet(c Collector) (Collector, error) { + if err := Register(c); err != nil { + if are, ok := err.(AlreadyRegisteredError); ok { + return are.ExistingCollector, nil + } + return nil, err + } + return c, nil +} + +// MustRegisterOrGet behaves like RegisterOrGet but panics instead of returning +// an error. +// +// Deprecated: This is deprecated for the same reason RegisterOrGet is. See +// there for details. +func MustRegisterOrGet(c Collector) Collector { + c, err := RegisterOrGet(c) + if err != nil { + panic(err) + } + return c +} + // Unregister removes the registration of the provided Collector from the // DefaultRegisterer. // @@ -169,6 +201,25 @@ func (gf GathererFunc) Gather() ([]*dto.MetricFamily, error) { return gf() } +// SetMetricFamilyInjectionHook replaces the DefaultGatherer with one that +// gathers from the previous DefaultGatherers but then merges the MetricFamily +// protobufs returned from the provided hook function with the MetricFamily +// protobufs returned from the original DefaultGatherer. +// +// Deprecated: This function manipulates the DefaultGatherer variable. Consider +// the implications, i.e. don't do this concurrently with any uses of the +// DefaultGatherer. In the rare cases where you need to inject MetricFamily +// protobufs directly, it is recommended to use a custom Registry and combine it +// with a custom Gatherer using the Gatherers type (see +// there). SetMetricFamilyInjectionHook only exists for compatibility reasons +// with previous versions of this package. +func SetMetricFamilyInjectionHook(hook func() []*dto.MetricFamily) { + DefaultGatherer = Gatherers{ + DefaultGatherer, + GathererFunc(func() ([]*dto.MetricFamily, error) { return hook(), nil }), + } +} + // AlreadyRegisteredError is returned by the Register method if the Collector to // be registered has already been registered before, or a different Collector // that collects the same metrics has been registered before. Registration fails @@ -243,7 +294,7 @@ func (r *Registry) Register(c Collector) error { }() r.mtx.Lock() defer r.mtx.Unlock() - // Conduct various tests... + // Coduct various tests... for desc := range descChan { // Is the descriptor valid at all? @@ -396,7 +447,7 @@ func (r *Registry) Gather() ([]*dto.MetricFamily, error) { // Drain metricChan in case of premature return. defer func() { - for range metricChan { + for _ = range metricChan { } }() @@ -632,7 +683,7 @@ func (s metricSorter) Less(i, j int) bool { return s[i].GetTimestampMs() < s[j].GetTimestampMs() } -// normalizeMetricFamilies returns a MetricFamily slice with empty +// normalizeMetricFamilies returns a MetricFamily slice whith empty // MetricFamilies pruned and the remaining MetricFamilies sorted by name within // the slice, with the contained Metrics sorted within each MetricFamily. func normalizeMetricFamilies(metricFamiliesByName map[string]*dto.MetricFamily) []*dto.MetricFamily { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go b/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go index d016a1560..9dacb6256 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go @@ -526,21 +526,20 @@ func TestRegisterWithOrGet(t *testing.T) { }, []string{"foo", "bar"}, ) - var err error - if err = prometheus.Register(original); err != nil { + if err := prometheus.Register(original); err != nil { t.Fatal(err) } - if err = prometheus.Register(equalButNotSame); err == nil { + if err := prometheus.Register(equalButNotSame); err == nil { t.Fatal("expected error when registringe equal collector") } - if are, ok := err.(prometheus.AlreadyRegisteredError); ok { - if are.ExistingCollector != original { - t.Error("expected original collector but got something else") - } - if are.ExistingCollector == equalButNotSame { - t.Error("expected original callector but got new one") - } - } else { - t.Error("unexpected error:", err) + existing, err := prometheus.RegisterOrGet(equalButNotSame) + if err != nil { + t.Fatal(err) + } + if existing != original { + t.Error("expected original collector but got something else") + } + if existing == equalButNotSame { + t.Error("expected original callector but got new one") } } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/summary.go b/vendor/github.com/prometheus/client_golang/prometheus/summary.go index 1c65e25ec..bce05bf9a 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/summary.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/summary.go @@ -54,9 +54,6 @@ type Summary interface { } // DefObjectives are the default Summary quantile values. -// -// Deprecated: DefObjectives will not be used as the default objectives in -// v0.10 of the library. The default Summary will have no quantiles then. var ( DefObjectives = map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001} @@ -116,15 +113,9 @@ type SummaryOpts struct { ConstLabels Labels // Objectives defines the quantile rank estimates with their respective - // absolute error. If Objectives[q] = e, then the value reported for q - // will be the φ-quantile value for some φ between q-e and q+e. The - // default value is DefObjectives. It is used if Objectives is left at - // its zero value (i.e. nil). To create a Summary without Objectives, - // set it to an empty map (i.e. map[float64]float64{}). - // - // Deprecated: Note that the current value of DefObjectives is - // deprecated. It will be replaced by an empty map in v0.10 of the - // library. Please explicitly set Objectives to the desired value. + // absolute error. If Objectives[q] = e, then the value reported + // for q will be the φ-quantile value for some φ between q-e and q+e. + // The default value is DefObjectives. Objectives map[float64]float64 // MaxAge defines the duration for which an observation stays relevant @@ -192,7 +183,7 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary { } } - if opts.Objectives == nil { + if len(opts.Objectives) == 0 { opts.Objectives = DefObjectives } @@ -419,24 +410,24 @@ func NewSummaryVec(opts SummaryOpts, labelNames []string) *SummaryVec { } } -// GetMetricWithLabelValues replaces the method of the same name in MetricVec. -// The difference is that this method returns an Observer and not a Metric so -// that no type conversion to an Observer is required. -func (m *SummaryVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) { +// GetMetricWithLabelValues replaces the method of the same name in +// MetricVec. The difference is that this method returns a Summary and not a +// Metric so that no type conversion is required. +func (m *SummaryVec) GetMetricWithLabelValues(lvs ...string) (Summary, error) { metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...) if metric != nil { - return metric.(Observer), err + return metric.(Summary), err } return nil, err } // GetMetricWith replaces the method of the same name in MetricVec. The -// difference is that this method returns an Observer and not a Metric so that -// no type conversion to an Observer is required. -func (m *SummaryVec) GetMetricWith(labels Labels) (Observer, error) { +// difference is that this method returns a Summary and not a Metric so that no +// type conversion is required. +func (m *SummaryVec) GetMetricWith(labels Labels) (Summary, error) { metric, err := m.MetricVec.GetMetricWith(labels) if metric != nil { - return metric.(Observer), err + return metric.(Summary), err } return nil, err } @@ -445,15 +436,15 @@ func (m *SummaryVec) GetMetricWith(labels Labels) (Observer, error) { // GetMetricWithLabelValues would have returned an error. By not returning an // error, WithLabelValues allows shortcuts like // myVec.WithLabelValues("404", "GET").Observe(42.21) -func (m *SummaryVec) WithLabelValues(lvs ...string) Observer { - return m.MetricVec.WithLabelValues(lvs...).(Observer) +func (m *SummaryVec) WithLabelValues(lvs ...string) Summary { + return m.MetricVec.WithLabelValues(lvs...).(Summary) } // With works as GetMetricWith, but panics where GetMetricWithLabels would have // returned an error. By not returning an error, With allows shortcuts like // myVec.With(Labels{"code": "404", "method": "GET"}).Observe(42.21) -func (m *SummaryVec) With(labels Labels) Observer { - return m.MetricVec.With(labels).(Observer) +func (m *SummaryVec) With(labels Labels) Summary { + return m.MetricVec.With(labels).(Summary) } type constSummary struct { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/summary_test.go b/vendor/github.com/prometheus/client_golang/prometheus/summary_test.go index b162ed946..c4575ffbd 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/summary_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/summary_test.go @@ -25,45 +25,6 @@ import ( dto "github.com/prometheus/client_model/go" ) -func TestSummaryWithDefaultObjectives(t *testing.T) { - reg := NewRegistry() - summaryWithDefaultObjectives := NewSummary(SummaryOpts{ - Name: "default_objectives", - Help: "Test help.", - }) - if err := reg.Register(summaryWithDefaultObjectives); err != nil { - t.Error(err) - } - - m := &dto.Metric{} - if err := summaryWithDefaultObjectives.Write(m); err != nil { - t.Error(err) - } - if len(m.GetSummary().Quantile) != len(DefObjectives) { - t.Error("expected default objectives in summary") - } -} - -func TestSummaryWithoutObjectives(t *testing.T) { - reg := NewRegistry() - summaryWithEmptyObjectives := NewSummary(SummaryOpts{ - Name: "empty_objectives", - Help: "Test help.", - Objectives: map[float64]float64{}, - }) - if err := reg.Register(summaryWithEmptyObjectives); err != nil { - t.Error(err) - } - - m := &dto.Metric{} - if err := summaryWithEmptyObjectives.Write(m); err != nil { - t.Error(err) - } - if len(m.GetSummary().Quantile) != 0 { - t.Error("expected no objectives in summary") - } -} - func benchmarkSummaryObserve(w int, b *testing.B) { b.StopTimer() @@ -175,9 +136,8 @@ func TestSummaryConcurrency(t *testing.T) { end.Add(concLevel) sum := NewSummary(SummaryOpts{ - Name: "test_summary", - Help: "helpless", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "test_summary", + Help: "helpless", }) allVars := make([]float64, total) @@ -263,9 +223,8 @@ func TestSummaryVecConcurrency(t *testing.T) { sum := NewSummaryVec( SummaryOpts{ - Name: "test_summary", - Help: "helpless", - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, + Name: "test_summary", + Help: "helpless", }, []string{"label"}, ) @@ -301,7 +260,7 @@ func TestSummaryVecConcurrency(t *testing.T) { for i := 0; i < vecLength; i++ { m := &dto.Metric{} s := sum.WithLabelValues(string('A' + i)) - s.(Summary).Write(m) + s.Write(m) if got, want := int(*m.Summary.SampleCount), len(allVars[i]); got != want { t.Errorf("got sample count %d for label %c, want %d", got, 'A'+i, want) } @@ -346,7 +305,7 @@ func TestSummaryDecay(t *testing.T) { m := &dto.Metric{} i := 0 tick := time.NewTicker(time.Millisecond) - for range tick.C { + for _ = range tick.C { i++ sum.Observe(float64(i)) if i%10 == 0 { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/timer.go b/vendor/github.com/prometheus/client_golang/prometheus/timer.go deleted file mode 100644 index 12b65699b..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/timer.go +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright 2016 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus - -import "time" - -// Timer is a helper type to time functions. Use NewTimer to create new -// instances. -type Timer struct { - begin time.Time - observer Observer -} - -// NewTimer creates a new Timer. The provided Observer is used to observe a -// duration in seconds. Timer is usually used to time a function call in the -// following way: -// func TimeMe() { -// timer := NewTimer(myHistogram) -// defer timer.ObserveDuration() -// // Do actual work. -// } -func NewTimer(o Observer) *Timer { - return &Timer{ - begin: time.Now(), - observer: o, - } -} - -// ObserveDuration records the duration passed since the Timer was created with -// NewTimer. It calls the Observe method of the Observer provided during -// construction with the duration in seconds as an argument. ObserveDuration is -// usually called with a defer statement. -func (t *Timer) ObserveDuration() { - if t.observer != nil { - t.observer.Observe(time.Since(t.begin).Seconds()) - } -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/timer_test.go b/vendor/github.com/prometheus/client_golang/prometheus/timer_test.go deleted file mode 100644 index 294902068..000000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/timer_test.go +++ /dev/null @@ -1,152 +0,0 @@ -// Copyright 2016 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus - -import ( - "testing" - - dto "github.com/prometheus/client_model/go" -) - -func TestTimerObserve(t *testing.T) { - var ( - his = NewHistogram(HistogramOpts{Name: "test_histogram"}) - sum = NewSummary(SummaryOpts{Name: "test_summary"}) - gauge = NewGauge(GaugeOpts{Name: "test_gauge"}) - ) - - func() { - hisTimer := NewTimer(his) - sumTimer := NewTimer(sum) - gaugeTimer := NewTimer(ObserverFunc(gauge.Set)) - defer hisTimer.ObserveDuration() - defer sumTimer.ObserveDuration() - defer gaugeTimer.ObserveDuration() - }() - - m := &dto.Metric{} - his.Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for histogram, got %d", want, got) - } - m.Reset() - sum.Write(m) - if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got { - t.Errorf("want %d observations for summary, got %d", want, got) - } - m.Reset() - gauge.Write(m) - if got := m.GetGauge().GetValue(); got <= 0 { - t.Errorf("want value > 0 for gauge, got %f", got) - } -} - -func TestTimerEmpty(t *testing.T) { - emptyTimer := NewTimer(nil) - emptyTimer.ObserveDuration() - // Do nothing, just demonstrate it works without panic. -} - -func TestTimerConditionalTiming(t *testing.T) { - var ( - his = NewHistogram(HistogramOpts{ - Name: "test_histogram", - }) - timeMe = true - m = &dto.Metric{} - ) - - timedFunc := func() { - timer := NewTimer(ObserverFunc(func(v float64) { - if timeMe { - his.Observe(v) - } - })) - defer timer.ObserveDuration() - } - - timedFunc() // This will time. - his.Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for histogram, got %d", want, got) - } - - timeMe = false - timedFunc() // This will not time again. - m.Reset() - his.Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for histogram, got %d", want, got) - } -} - -func TestTimerByOutcome(t *testing.T) { - var ( - his = NewHistogramVec( - HistogramOpts{Name: "test_histogram"}, - []string{"outcome"}, - ) - outcome = "foo" - m = &dto.Metric{} - ) - - timedFunc := func() { - timer := NewTimer(ObserverFunc(func(v float64) { - his.WithLabelValues(outcome).Observe(v) - })) - defer timer.ObserveDuration() - - if outcome == "foo" { - outcome = "bar" - return - } - outcome = "foo" - } - - timedFunc() - his.WithLabelValues("foo").(Histogram).Write(m) - if want, got := uint64(0), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'foo' histogram, got %d", want, got) - } - m.Reset() - his.WithLabelValues("bar").(Histogram).Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'bar' histogram, got %d", want, got) - } - - timedFunc() - m.Reset() - his.WithLabelValues("foo").(Histogram).Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'foo' histogram, got %d", want, got) - } - m.Reset() - his.WithLabelValues("bar").(Histogram).Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'bar' histogram, got %d", want, got) - } - - timedFunc() - m.Reset() - his.WithLabelValues("foo").(Histogram).Write(m) - if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'foo' histogram, got %d", want, got) - } - m.Reset() - his.WithLabelValues("bar").(Histogram).Write(m) - if want, got := uint64(2), m.GetHistogram().GetSampleCount(); want != got { - t.Errorf("want %d observations for 'bar' histogram, got %d", want, got) - } - -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/untyped.go b/vendor/github.com/prometheus/client_golang/prometheus/untyped.go index 065501d38..5faf7e6e3 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/untyped.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/untyped.go @@ -20,11 +20,6 @@ package prometheus // no type information is implied. // // To create Untyped instances, use NewUntyped. -// -// Deprecated: The Untyped type is deprecated because it doesn't make sense in -// direct instrumentation. If you need to mirror an external metric of unknown -// type (usually while writing exporters), Use MustNewConstMetric to create an -// untyped metric instance on the fly. type Untyped interface { Metric Collector diff --git a/vendor/github.com/prometheus/client_golang/prometheus/value.go b/vendor/github.com/prometheus/client_golang/prometheus/value.go index ff75ce585..a944c3775 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/value.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/value.go @@ -19,7 +19,6 @@ import ( "math" "sort" "sync/atomic" - "time" dto "github.com/prometheus/client_model/go" @@ -44,7 +43,7 @@ var errInconsistentCardinality = errors.New("inconsistent label cardinality") // ValueType. This is a low-level building block used by the library to back the // implementations of Counter, Gauge, and Untyped. type value struct { - // valBits contains the bits of the represented float64 value. It has + // valBits containst the bits of the represented float64 value. It has // to go first in the struct to guarantee alignment for atomic // operations. http://golang.org/pkg/sync/atomic/#pkg-note-BUG valBits uint64 @@ -81,10 +80,6 @@ func (v *value) Set(val float64) { atomic.StoreUint64(&v.valBits, math.Float64bits(val)) } -func (v *value) SetToCurrentTime() { - v.Set(float64(time.Now().UnixNano()) / 1e9) -} - func (v *value) Inc() { v.Add(1) } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/vec_test.go b/vendor/github.com/prometheus/client_golang/prometheus/vec_test.go index e3c5aeba0..445a6b39f 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/vec_test.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/vec_test.go @@ -241,8 +241,8 @@ func TestCounterVecEndToEndWithCollision(t *testing.T) { func BenchmarkMetricVecWithLabelValuesBasic(b *testing.B) { benchmarkMetricVecWithLabelValues(b, map[string][]string{ - "l1": {"onevalue"}, - "l2": {"twovalue"}, + "l1": []string{"onevalue"}, + "l2": []string{"twovalue"}, }) } |