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#!/usr/bin/env python
from getopt import getopt, GetoptError
from os import popen, chmod, unlink
from sys import argv, exit, exc_info
from string import join
from tempfile import mktemp
from traceback import extract_tb
from elementtree.ElementTree import Element, XML, tostring
from sss.ssslib import comm_lib
from Bcfg2.Client.Debian import Debian
def ElementMatch(master, sub):
if master.tag == sub.tag:
for k in sub.attrib.keys():
if master.attrib[k] != sub.attrib[k]:
return False
return True
return False
def RunProbe(probe):
ret = Element("probe-data", name=probe.attrib['name'], source=probe.attrib['source'])
script = open(mktemp(), 'w+')
script.write("#!%s\n"%(probe.attrib.get('interpreter', '/bin/sh')))
script.write(probe.text)
script.close()
chmod(script.name, 0755)
ret.text = popen(script.name).read()
unlink(script.name)
return ret
def dgetopt(arglist, opt, vopt):
r = {}
for o in opt.values() + vopt.values():
r[o] = False
gstr = join(opt.keys()) + join([x+':' for x in vopt.keys()])
try:
(o, a) = getopt(arglist, gstr)
except GetoptError, g:
print g
print "bcfg2 Usage:"
for (k,v) in opt.iteritems():
print " -%s %s"%(k,v)
for (k,v) in vopt.iteritems():
print " -%s <%s>"%(k,v)
exit(1)
for (gopt,garg) in o:
option = gopt[1:]
if opt.has_key(option):
r[opt[option]] = True
else:
r[vopt[option]] = garg
return r
class ClientState(object):
def __init__(self, cfg, setup):
self.states = {}
self.structures = {}
self.cfg = cfg
self.setup = setup
self.modified = []
self.extra = []
self.toolset = Debian(cfg, setup)
def LogFailure(self, area, entry):
print "Failure in %s for entry: %s"%(area, tostring(entry))
(t,v,tb) = exc_info()
for line in extract_tb(tb):
print "File %s, line %i, in %s\n %s\n"%(line)
print "%s: %s\n"%(t,v)
del t,v,tb
def VerifyEntry(self, entry, modlist = []):
try:
method = getattr(self.toolset, "Verify%s"%(entry.tag))
# verify state and stash value in state
if entry.tag == 'Package':
self.states[entry] = method(entry, modlist)
else:
self.states[entry] = method(entry)
if self.setup['debug']:
print entry.attrib['name'], self.states[entry]
except:
self.LogFailure("Verify", entry)
def InstallEntry(self, entry):
try:
method = getattr(self.toolset, "Install%s"%(entry.tag))
self.states[entry] = method(entry)
except:
self.LogFailure("Install", entry)
def Inventory(self):
# build initial set of states
unexamined = map(lambda x:(x,[]), self.cfg.getchildren())
while unexamined:
(r, modlist) = unexamined.pop()
if r.tag not in ['Bundle', 'Independant']:
self.VerifyEntry(r, modlist)
else:
modlist = [x.attrib['name'] for x in r.getchildren() if x.tag == 'ConfigFile']
unexamined += map(lambda x:(x,modlist), r.getchildren())
self.structures[r] = False
for structure in self.cfg.getchildren():
self.CheckStructure(structure)
# TwoWay: build list of "extra configs"
#e = self.toolset.FindElements()
#known = self.states.keys()
#for entry in e:
# if not filter(lambda x:ElementMatch(x, entry), known):
# self.extra.append(entry)
#print self.extra
def CheckStructure(self, structure):
if structure in self.modified:
self.modified.remove(structure)
if structure.tag == 'Bundle':
# check for clobbered data
modlist = [x.attrib['name'] for x in structure.getchildren() if x.tag == 'ConfigFile']
for entry in structure.getchildren():
self.VerifyEntry(entry, modlist)
try:
state = map(lambda x:self.states[x], structure.getchildren())
if False not in state:
self.structures[structure] = True
except KeyError, k:
print "State verify evidently failed for %s"%(k)
self.structures[structure] = False
def Install(self):
self.modified = [k for (k,v) in self.structures.iteritems() if not v]
for entry in [k for (k,v) in self.states.iteritems() if not v]:
self.InstallEntry(entry)
def Commit(self):
self.toolset.Commit()
if __name__ == '__main__':
# parse command line options
options = {'v':'verbose','q':'quick', 'd':'debug', 'n':'dryrun', 'B':'build', 'p':'paranoid'}
doptions = {'b':'bundle', 'f':'file', 'c':'cache', 'p':'profile', 'i':'image'}
setup = dgetopt(argv[1:], options, doptions)
print setup
# connect to bcfg2d
comm = comm_lib()
h = comm.ClientInit("bcfg2")
# get probes
comm.SendMessage(h, "<get-probes/>")
data = comm.RecvMessage(h)
#if setup['verbose']: print data
probes = XML(data)
# execute probes
probedata = map(RunProbe, probes.findall(".//probe"))
# upload probe responses
cpd = Element("probe-data")
map(lambda x:cpd.append(x), probedata)
if setup['verbose'] : print tostring(cpd)
comm.SendMessage(h, tostring(cpd))
r = comm.RecvMessage(h)
msg = Element("get-config")
if setup['profile']: msg.attrib['profile'] = setup['profile']
if setup['image']: msg.attrib['image'] = setup['image']
# get config
comm.SendMessage(h, tostring(msg))
r = comm.RecvMessage(h)
if setup['cache']:
try:
open(setup['cache'], 'w').write(r)
except:
print "failed to write config cache file %s"%(setup['cache'])
cfg = XML(r)
if cfg.tag == 'error':
print "got error from server"
exit(1)
client = ClientState(cfg, setup)
# verify state
client.Inventory()
# summarize current state
print "--> %s of %s config elements correct"%(client.states.values().count(True), len(client.states.values()))
# install incorrect aspects of configuration
client.Install()
# flush pending changes
client.Commit()
print "--> %s of %s config elements correct"%(client.states.values().count(True), len(client.states.values()))
print "bad:"
for k,v in client.states.iteritems():
if not v:
print "%s:%s"%(k.tag, k.attrib['name'])
# install config
# upload statistics
comm.ClientClose(h)
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