62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
# Copyright 2016 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 os
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from charmhelpers.core.hookenv import (
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service_name,
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is_relation_made,
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)
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from charmhelpers.contrib.openstack.context import (
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OSContextGenerator,
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)
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from charmhelpers.contrib.openstack.utils import (
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get_os_codename_package,
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CompareOpenStackReleases,
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)
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class CephBackupSubordinateContext(OSContextGenerator):
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interfaces = ['ceph-cinder']
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def __call__(self):
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"""Used to generate template context to be added to cinder.conf in the
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presence of a ceph relation.
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"""
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if not is_relation_made('ceph', 'key'):
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return {}
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release = get_os_codename_package('cinder-common')
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if CompareOpenStackReleases(release) < "icehouse":
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raise Exception("Unsupported version of Openstack")
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service = service_name()
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backup_driver = 'cinder.backup.drivers.ceph'
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return {
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"cinder": {
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"/etc/cinder/cinder.conf": {
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"sections": {
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'DEFAULT': [
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('backup_driver', backup_driver),
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('backup_ceph_conf',
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os.path.join('/var/lib/charm',
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service, 'ceph.conf')),
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('backup_ceph_pool', service),
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('backup_ceph_user', service),
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]
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}
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}
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}
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}
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