Admin: Add expirecache command

Expirecache is now part of bcfg2-admin and will call expire_metadata_cache
from Core via XML-RPC. This will expire the metadata cache of the supplied
clients (or the complete cache if no arguments are supplied) on a running
bcfg2-server.

2 files changed, 34 insertions, 0 deletions

diff --git a/src/lib/Bcfg2/Server/Admin.py b/src/lib/Bcfg2/Server/Admin.py
index b038980a1..c32b1989b 100644
--- a/src/lib/Bcfg2/Server/Admin.py
+++ b/src/lib/Bcfg2/Server/Admin.py
@@ -443,6 +443,25 @@ class Compare(AdminCmd):
                 print("")
 
 
+class ExpireCache(_ProxyAdminCmd):
+    """ Expire the metadata cache """
+
+    options = _ProxyAdminCmd.options + [
+        Bcfg2.Options.PositionalArgument(
+            "hostname", nargs="*", default=[],
+            help="Expire cache for the given host(s)")]
+
+    def run(self, setup):
+        clients = None
+        if setup.hostname is not None and len(setup.hostname) > 0:
+            clients = setup.hostname
+
+        try:
+            self.proxy.expire_metadata_cache(clients)
+        except Bcfg2.Client.Proxy.ProxyError:
+            self.errExit("Proxy Error: %s" % sys.exc_info()[1])
+
+
 class Init(AdminCmd):
     """Interactively initialize a new repository."""
 
diff --git a/src/lib/Bcfg2/Server/Core.py b/src/lib/Bcfg2/Server/Core.py
index a9628c024..3db97f770 100644
--- a/src/lib/Bcfg2/Server/Core.py
+++ b/src/lib/Bcfg2/Server/Core.py
@@ -1368,6 +1368,21 @@ class Core(object):
         return "This method is deprecated and will be removed in a future " + \
             "release\n%s" % self.fam.set_debug(debug)
 
+    @exposed
+    def expire_metadata_cache(self, _, hostnames=None):
+        """ Expire the metadata cache for one or all clients
+
+        :param hostnames: A list of hostnames to expire the metadata
+                          cache for or None. If None the cache of
+                          all clients will be expired.
+        :type hostnames: None or list of strings
+        """
+        if hostnames is not None:
+            for hostname in hostnames:
+                self.metadata_cache.expire(hostname)
+        else:
+            self.metadata_cache.expire()
+
 
 class NetworkCore(Core):
     """ A server core that actually listens on the network, can be