Add nova and keystone plugin for openstack essex

plugins/nova/nova_services

@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+#
+# Plugin to report service status
+#
+# Needs following minimal configuration in plugin-conf.d/nova:
+#   [nova_*]
+#   user nova
+#
+# Magic markers
+#%# capabilities=autoconf
+#%# family=nova
+
+from nova import context
+from nova import db
+from nova import flags
+from nova import utils
+import sys
+
+services = ['nova-compute', 'nova-volume', 'nova-scheduler', 'nova-vncproxy', 'nova-network', 'nova-cert', 'nova-console', 'nova-consoleauth']
+
+
+def print_config():
+    global services
+    print 'graph_title Nova Services'
+    print 'graph_vlabel qty'
+    print 'graph_args --base 1000 --lower-limit 0'
+    print 'graph_category nova'
+    print 'graph_scale no'
+    print 'graph_info Nova services - alive and active'
+    for service in services:
+        print '%s_alive.label %s alive' % (service, service)
+        print '%s_alive.draw LINE2' % service
+        print '%s_alive.info seen in last 30 seconds' % service
+        print '%s_active.label %s active' % (service, service)
+        print '%s_active.draw LINE2' % service
+        print '%s_active.info alive and enabled' % service
+
+
+def get_status():
+    global services
+    alive = {}
+    active = {}
+    for k in services:
+        alive[k] = 0
+        active[k] = 0
+
+    ctxt = context.get_admin_context()
+    now = utils.utcnow()
+    services = db.service_get_all(ctxt)
+    for svc in services:
+        delta = now - (svc['updated_at'] or svc['created_at'])
+        if (delta.seconds <= 30):
+            alive[svc['binary']] += 1
+            if not svc['disabled']:
+                active[svc['binary']] += 1
+
+    return {'alive': alive, 'active': active}
+
+
+def print_values():
+    status = get_status()
+    for (state, value) in status['alive'].iteritems():
+        print "%s_alive.value %s" % (state, value)
+    for (state, value) in status['active'].iteritems():
+        print "%s_active.value %s" % (state, value)
+
+
+if __name__ == '__main__':
+    if len(sys.argv) > 1:
+        if sys.argv[1] == "config":
+            print_config()
+        elif sys.argv[1] == "autoconf":
+            print "yes"
+    else:
+        utils.default_flagfile()
+        flags.FLAGS(sys.argv)
+        print_values()