Update bradms branch to add nrpe support

hooks/ceilometer_hooks.py

@@ -1,7 +1,6 @@
 #!/usr/bin/python
 
 import sys
-import os
 import json
 from charmhelpers.fetch import (
     apt_install, filter_installed_packages,
@@ -11,9 +10,7 @@ from charmhelpers.core.hookenv import (
     config,
     Hooks, UnregisteredHookError,
     log,
-    local_unit,
     relation_set,
-    relations_of_type,
 )
 from charmhelpers.core.host import (
     restart_on_change,
@@ -31,8 +28,7 @@ from ceilometer_utils import (
     NOVA_SETTINGS,
     do_openstack_upgrade
 )
-
-from charmhelpers.contrib.charmsupport.nrpe import NRPE
+from charmhelpers.contrib.charmsupport import nrpe
 
 hooks = Hooks()
 CONFIGS = register_configs()
@@ -76,50 +72,13 @@ def config_changed():
 @hooks.hook('nrpe-external-master-relation-joined',
             'nrpe-external-master-relation-changed')
 def update_nrpe_config():
-    # Find out if nrpe set nagios_hostname
-    hostname = None
-    host_context = None
-    for rel in relations_of_type('nrpe-external-master'):
-        if 'nagios_hostname' in rel:
-            hostname = rel['nagios_hostname']
-            host_context = rel['nagios_host_context']
-            break
-    nrpe = NRPE(hostname=hostname)
+    # python-dbus is used by check_upstart_job
     apt_install('python-dbus')
-
-    if host_context:
-        current_unit = "%s:%s" % (host_context, local_unit())
-    else:
-        current_unit = local_unit()
-
-    services_to_monitor = services()
-
-    for service in services_to_monitor:
-        upstart_init = '/etc/init/%s.conf' % service
-        sysv_init = '/etc/init.d/%s' % service
-
-        if os.path.exists(upstart_init):
-            nrpe.add_check(
-                shortname=service,
-                description='process check {%s}' % current_unit,
-                check_cmd='check_upstart_job %s' % service,
-                )
-        elif os.path.exists(sysv_init):
-            cronpath = '/etc/cron.d/nagios-service-check-%s' % service
-            cron_template = '*/5 * * * * root \
-/usr/local/lib/nagios/plugins/check_exit_status.pl -s /etc/init.d/%s \
-status > /var/lib/nagios/service-check-%s.txt\n' % (service, service)
-            f = open(cronpath, 'w')
-            f.write(cron_template)
-            f.close()
-            nrpe.add_check(
-                shortname=service,
-                description='process check {%s}' % current_unit,
-                check_cmd='check_status_file.py -f \
-                    /var/lib/nagios/service-check-%s.txt' % service,
-                )
-
-    nrpe.write()
+    hostname = nrpe.get_nagios_hostname()
+    current_unit = nrpe.get_nagios_unit_name()
+    nrpe_setup = nrpe.NRPE(hostname=hostname)
+    nrpe.add_init_service_checks(nrpe_setup, services(), current_unit)
+    nrpe_setup.write()
 
 
 if __name__ == '__main__':

unit_tests/test_ceilometer_hooks.py

@@ -22,7 +22,8 @@ TO_PATCH = [
     'CONFIGS',
     'relation_set',
     'openstack_upgrade_available',
-    'do_openstack_upgrade'
+    'do_openstack_upgrade',
+    'update_nrpe_config',
 ]
 
 
@@ -53,6 +54,7 @@ class CeilometerHooksTest(CharmTestCase):
     def test_ceilometer_changed(self, mock_config):
         hooks.hooks.execute(['hooks/ceilometer-service-relation-changed'])
         self.assertTrue(self.CONFIGS.write_all.called)
+        self.assertTrue(self.update_nrpe_config.called)
 
     @patch('charmhelpers.core.hookenv.config')
     def test_nova_ceilometer_joined(self, mock_config):
@@ -68,6 +70,7 @@ class CeilometerHooksTest(CharmTestCase):
             assert_called_with('ceilometer-common')
         self.assertFalse(self.do_openstack_upgrade.called)
         self.assertTrue(self.CONFIGS.write_all.called)
+        self.assertTrue(self.update_nrpe_config.called)
 
     @patch('charmhelpers.core.hookenv.config')
     def test_config_changed_upgrade(self, mock_config):
@@ -77,3 +80,4 @@ class CeilometerHooksTest(CharmTestCase):
             assert_called_with('ceilometer-common')
         self.assertTrue(self.do_openstack_upgrade.called)
         self.assertTrue(self.CONFIGS.write_all.called)
+        self.assertTrue(self.update_nrpe_config.called)