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#!/usr/bin/python
#
# Copyright 2016 Canonical Ltd
#
# 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.
import sys
import json
from charmhelpers.fetch import (
apt_install, filter_installed_packages,
apt_update
)
from charmhelpers.core.hookenv import (
config,
Hooks, UnregisteredHookError,
log,
is_relation_made,
relation_set,
status_set,
)
from charmhelpers.contrib.openstack.utils import (
configure_installation_source,
openstack_upgrade_available,
pausable_restart_on_change as restart_on_change,
)
from ceilometer_utils import (
restart_map,
services,
register_configs,
CEILOMETER_AGENT_PACKAGES,
NOVA_SETTINGS,
do_openstack_upgrade,
assess_status,
)
from charmhelpers.contrib.charmsupport import nrpe
hooks = Hooks()
CONFIGS = register_configs()
@hooks.hook()
def install():
origin = config('openstack-origin')
configure_installation_source(origin)
status_set('maintenance', 'Installing apt packages')
apt_update(fatal=True)
apt_install(
filter_installed_packages(CEILOMETER_AGENT_PACKAGES),
fatal=True)
@hooks.hook('nova-ceilometer-relation-joined')
def nova_ceilometer_joined():
relation_set(subordinate_configuration=json.dumps(NOVA_SETTINGS))
@hooks.hook("ceilometer-service-relation-changed",
"upgrade-charm")
@restart_on_change(restart_map())
def ceilometer_changed():
CONFIGS.write_all()
if is_relation_made('nrpe-external-master'):
update_nrpe_config()
@hooks.hook('config-changed')
@restart_on_change(restart_map(), stopstart=True)
def config_changed():
if not config('action-managed-upgrade'):
if openstack_upgrade_available('ceilometer-common'):
status_set('maintenance', 'Running openstack upgrade')
do_openstack_upgrade(CONFIGS)
if is_relation_made('nrpe-external-master'):
update_nrpe_config()
CONFIGS.write_all()
@hooks.hook('nrpe-external-master-relation-joined',
'nrpe-external-master-relation-changed')
def update_nrpe_config():
# python-dbus is used by check_upstart_job
apt_install('python-dbus')
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__':
try:
hooks.execute(sys.argv)
except UnregisteredHookError as e:
log('Unknown hook {} - skipping.'.format(e))
# set_os_workload_status(CONFIGS, REQUIRED_INTERFACES)
assess_status(CONFIGS)
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