335 lines
10 KiB
Python
Executable File
335 lines
10 KiB
Python
Executable File
#!/usr/bin/python
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import base64
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import shutil
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import subprocess
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import sys
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import os
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from charmhelpers.fetch import (
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apt_install, filter_installed_packages,
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apt_update
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)
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from charmhelpers.core.hookenv import (
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open_port,
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relation_get,
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relation_set,
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relation_ids,
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related_units,
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config,
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Hooks, UnregisteredHookError,
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log,
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)
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from charmhelpers.core.host import (
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service_restart,
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restart_on_change,
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lsb_release
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)
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from charmhelpers.contrib.openstack.utils import (
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configure_installation_source,
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openstack_upgrade_available
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)
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from ceilometer_utils import (
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get_packages,
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CEILOMETER_DB,
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CEILOMETER_SERVICE,
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CEILOMETER_ROLE,
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register_configs,
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restart_map,
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services,
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get_ceilometer_context,
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get_shared_secret,
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do_openstack_upgrade,
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set_shared_secret,
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)
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from ceilometer_contexts import CEILOMETER_PORT
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from charmhelpers.contrib.openstack.ip import (
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canonical_url,
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PUBLIC, INTERNAL, ADMIN
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)
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from charmhelpers.contrib.charmsupport import nrpe
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from charmhelpers.contrib.network.ip import (
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get_iface_for_address,
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get_netmask_for_address
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)
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from charmhelpers.contrib.hahelpers.cluster import (
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get_hacluster_config,
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is_elected_leader
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)
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from charmhelpers.contrib.peerstorage import peer_store
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from charmhelpers.payload.execd import execd_preinstall
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hooks = Hooks()
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CONFIGS = register_configs()
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@hooks.hook()
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def install():
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execd_preinstall()
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origin = config('openstack-origin')
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if (lsb_release()['DISTRIB_CODENAME'] == 'precise' and origin == 'distro'):
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origin = 'cloud:precise-grizzly'
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configure_installation_source(origin)
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apt_update(fatal=True)
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apt_install(filter_installed_packages(get_packages()),
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fatal=True)
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open_port(CEILOMETER_PORT)
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@hooks.hook("amqp-relation-joined")
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def amqp_joined():
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relation_set(username=config('rabbit-user'),
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vhost=config('rabbit-vhost'))
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@hooks.hook("shared-db-relation-joined")
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def db_joined():
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relation_set(ceilometer_database=CEILOMETER_DB)
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@hooks.hook("amqp-relation-changed",
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"shared-db-relation-changed",
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"shared-db-relation-departed")
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@restart_on_change(restart_map())
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def any_changed():
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CONFIGS.write_all()
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configure_https()
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ceilometer_joined()
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@hooks.hook("identity-service-relation-changed")
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@restart_on_change(restart_map())
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def identity_service_relation_changed():
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CONFIGS.write_all()
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configure_https()
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keystone_joined()
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@hooks.hook("amqp-relation-departed")
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@restart_on_change(restart_map())
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def amqp_departed():
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if 'amqp' not in CONFIGS.complete_contexts():
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log('amqp relation incomplete. Peer not ready?')
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return
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CONFIGS.write_all()
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def configure_https():
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"""Enables SSL API Apache config if appropriate."""
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# need to write all to ensure changes to the entire request pipeline
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# propagate (c-api, haprxy, apache)
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CONFIGS.write_all()
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if 'https' in CONFIGS.complete_contexts():
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cmd = ['a2ensite', 'openstack_https_frontend']
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subprocess.check_call(cmd)
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else:
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cmd = ['a2dissite', 'openstack_https_frontend']
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subprocess.check_call(cmd)
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# TODO: improve this by checking if local CN certs are available
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# first then checking reload status (see LP #1433114).
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try:
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subprocess.check_call(['service', 'apache2', 'reload'])
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except subprocess.CalledProcessError:
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subprocess.call(['service', 'apache2', 'restart'])
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@hooks.hook('config-changed')
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@restart_on_change(restart_map())
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def config_changed():
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if openstack_upgrade_available('ceilometer-common'):
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do_openstack_upgrade(CONFIGS)
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update_nrpe_config()
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CONFIGS.write_all()
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ceilometer_joined()
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configure_https()
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for rid in relation_ids('identity-service'):
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keystone_joined(relid=rid)
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@hooks.hook('upgrade-charm')
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def upgrade_charm():
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install()
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update_nrpe_config()
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any_changed()
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def install_ceilometer_ocf():
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dest_file = "/usr/lib/ocf/resource.d/openstack/ceilometer-agent-central"
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src_file = 'ocf/openstack/ceilometer-agent-central'
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if not os.path.isdir(os.path.dirname(dest_file)):
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os.makedirs(os.path.dirname(dest_file))
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if not os.path.exists(dest_file):
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shutil.copy(src_file, dest_file)
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@hooks.hook('cluster-relation-joined')
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@restart_on_change(restart_map(), stopstart=True)
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def cluster_joined():
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install_ceilometer_ocf()
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# If this node is the elected leader then share our secret with other nodes
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if is_elected_leader('grp_ceilometer_vips'):
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peer_store('shared_secret', get_shared_secret())
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CONFIGS.write_all()
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@hooks.hook('cluster-relation-changed',
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'cluster-relation-departed')
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@restart_on_change(restart_map(), stopstart=True)
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def cluster_changed():
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shared_secret = relation_get('shared_secret')
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if shared_secret is None or shared_secret.strip() == '':
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log('waiting for shared secret to be provided by leader')
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elif not shared_secret == get_shared_secret():
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set_shared_secret(shared_secret)
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CONFIGS.write_all()
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@hooks.hook('ha-relation-joined')
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def ha_joined():
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cluster_config = get_hacluster_config()
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resources = {
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'res_ceilometer_haproxy': 'lsb:haproxy',
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'res_ceilometer_agent_central': ('ocf:openstack:'
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'ceilometer-agent-central')
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}
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resource_params = {
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'res_ceilometer_haproxy': 'op monitor interval="5s"',
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'res_ceilometer_agent_central': 'op monitor interval="30s"'
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}
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amqp_ssl_port = None
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for rel_id in relation_ids('amqp'):
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for unit in related_units(rel_id):
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amqp_ssl_port = relation_get('ssl_port', unit, rel_id)
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if amqp_ssl_port:
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params = ('params amqp_server_port="%s" op monitor interval="30s"' %
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(amqp_ssl_port))
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resource_params['res_ceilometer_agent_central'] = params
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vip_group = []
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for vip in cluster_config['vip'].split():
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res_ceilometer_vip = 'ocf:heartbeat:IPaddr2'
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vip_params = 'ip'
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iface = get_iface_for_address(vip)
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if iface is not None:
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vip_key = 'res_ceilometer_{}_vip'.format(iface)
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resources[vip_key] = res_ceilometer_vip
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resource_params[vip_key] = (
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'params {ip}="{vip}" cidr_netmask="{netmask}"'
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' nic="{iface}"'.format(ip=vip_params,
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vip=vip,
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iface=iface,
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netmask=get_netmask_for_address(vip))
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)
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vip_group.append(vip_key)
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if len(vip_group) >= 1:
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relation_set(groups={'grp_ceilometer_vips': ' '.join(vip_group)})
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init_services = {
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'res_ceilometer_haproxy': 'haproxy'
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}
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clones = {
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'cl_ceilometer_haproxy': 'res_ceilometer_haproxy'
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}
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relation_set(init_services=init_services,
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corosync_bindiface=cluster_config['ha-bindiface'],
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corosync_mcastport=cluster_config['ha-mcastport'],
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resources=resources,
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resource_params=resource_params,
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clones=clones)
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@hooks.hook('ha-relation-changed')
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def ha_changed():
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clustered = relation_get('clustered')
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if not clustered or clustered in [None, 'None', '']:
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log('ha_changed: hacluster subordinate not fully clustered.')
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else:
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log('Cluster configured, notifying other services and updating '
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'keystone endpoint configuration')
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for rid in relation_ids('identity-service'):
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keystone_joined(relid=rid)
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@hooks.hook("identity-service-relation-joined")
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def keystone_joined(relid=None):
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public_url = "{}:{}".format(
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canonical_url(CONFIGS, PUBLIC),
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CEILOMETER_PORT
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)
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admin_url = "{}:{}".format(
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canonical_url(CONFIGS, ADMIN),
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CEILOMETER_PORT
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)
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internal_url = "{}:{}".format(
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canonical_url(CONFIGS, INTERNAL),
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CEILOMETER_PORT
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)
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region = config("region")
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relation_set(relation_id=relid,
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service=CEILOMETER_SERVICE,
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public_url=public_url,
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admin_url=admin_url,
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internal_url=internal_url,
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requested_roles=CEILOMETER_ROLE,
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region=region)
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@hooks.hook('identity-notifications-relation-changed')
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def identity_notifications_changed():
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"""Receive notifications from keystone."""
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notifications = relation_get()
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if not notifications:
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return
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# Some ceilometer services will create a client and request
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# the service catalog from keystone on startup. So if
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# endpoints change we need to restart these services.
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key = '%s-endpoint-changed' % (CEILOMETER_SERVICE)
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if key in notifications:
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service_restart('ceilometer-alarm-evaluator')
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service_restart('ceilometer-alarm-notifier')
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@hooks.hook("ceilometer-service-relation-joined")
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def ceilometer_joined():
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# Pass local context data onto related agent services
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context = get_ceilometer_context()
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# This value gets tranformed to a path by the context we need to
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# pass the data to agents.
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if 'rabbit_ssl_ca' in context:
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with open(context['rabbit_ssl_ca']) as fh:
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context['rabbit_ssl_ca'] = base64.b64encode(fh.read())
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for relid in relation_ids('ceilometer-service'):
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relation_set(relid, context)
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@hooks.hook('nrpe-external-master-relation-joined',
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'nrpe-external-master-relation-changed')
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def update_nrpe_config():
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# python-dbus is used by check_upstart_job
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apt_install('python-dbus')
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hostname = nrpe.get_nagios_hostname()
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current_unit = nrpe.get_nagios_unit_name()
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nrpe_setup = nrpe.NRPE(hostname=hostname)
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nrpe.copy_nrpe_checks()
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nrpe.add_init_service_checks(nrpe_setup, services(), current_unit)
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nrpe.add_haproxy_checks(nrpe_setup, current_unit)
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nrpe_setup.write()
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if __name__ == '__main__':
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try:
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hooks.execute(sys.argv)
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except UnregisteredHookError as e:
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log('Unknown hook {} - skipping.'.format(e))
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