83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
# Copyright 2019 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import shutil
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import os
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import charms.reactive as reactive
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import charmhelpers.fetch as fetch
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import charmhelpers.core.hookenv as hookenv
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import charmhelpers.core.host as ch_host
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import charmhelpers.contrib.network.ip
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COROSYNC_DIR = '/etc/corosync/'
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SERVICES = ['pacemaker_remote', 'pcsd']
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PACKAGES = ['pacemaker-remote', 'pcs', 'resource-agents', 'corosync']
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PACEMAKER_KEY = '/etc/pacemaker/authkey'
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def install_packages():
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hookenv.status_set('maintenance', 'Installing packages')
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fetch.apt_install(PACKAGES, fatal=True)
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hookenv.status_set('maintenance',
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'Installation complete - awaiting next status')
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def wipe_corosync_state():
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try:
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shutil.rmtree('{}/uidgid.d'.format(COROSYNC_DIR))
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except FileNotFoundError:
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pass
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try:
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os.remove('{}/corosync.conf'.format(COROSYNC_DIR))
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except FileNotFoundError:
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pass
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def restart_services():
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for svc in SERVICES:
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ch_host.service_restart(svc)
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@reactive.when_not('pacemaker-remote.installed')
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def install():
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install_packages()
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wipe_corosync_state()
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reactive.set_flag('pacemaker-remote.installed')
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@reactive.when('endpoint.pacemaker-remote.joined')
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def publish_stonith_info():
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if hookenv.config(''):
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remote = reactive.endpoint_from_flag(
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'endpoint.pacemaker-remote.joined')
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remote.publish_info(
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stonith_hostname=charmhelpers.contrib.network.ip.get_hostname(
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hookenv.unit_get('private-address')))
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@reactive.when('endpoint.pacemaker-remote.changed.pacemaker-key')
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def write_pacemaker_key():
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remote = reactive.endpoint_from_flag('endpoint.pacemaker-remote.changed')
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key = remote.get_pacemaker_key()
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if key:
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ch_host.write_file(
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PACEMAKER_KEY,
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key,
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owner='hacluster',
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group='haclient',
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perms=0o444)
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restart_services()
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