115 lines
3.9 KiB
Python
115 lines
3.9 KiB
Python
# Copyright 2017 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 charms_openstack.charm as charm
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import charms.reactive as reactive
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import charm.openstack.gnocchi as gnocchi # noqa
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import charmhelpers.core.hookenv as hookenv
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charm.use_defaults(
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'charm.installed',
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'shared-db.connected',
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'identity-service.connected',
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'config.changed',
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'update-status',
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'certificates.available',
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)
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required_interfaces = ['coordinator-memcached.available',
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'shared-db.available',
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'identity-service.available',
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'storage-ceph.pools.available']
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@reactive.when_not_all(*required_interfaces)
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def disable_services():
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with charm.provide_charm_instance() as charm_class:
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charm_class.disable_services()
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@reactive.when(*required_interfaces)
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def render_config(*args):
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"""Render the configuration for charm when all the interfaces are
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available.
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"""
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with charm.provide_charm_instance() as charm_class:
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charm_class.upgrade_if_available(args)
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charm_class.configure_ssl()
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charm_class.enable_services()
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charm_class.render_with_interfaces(args)
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charm_class.enable_webserver_site()
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charm_class.assess_status()
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hookenv.log("Configuration rendered", hookenv.DEBUG)
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reactive.set_state('config.rendered')
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# db_sync checks if sync has been done so rerunning is a noop
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@reactive.when('config.rendered')
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@reactive.when_not('db.synced')
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def init_db():
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with charm.provide_charm_instance() as charm_class:
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charm_class.db_sync()
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hookenv.log("Database synced", hookenv.DEBUG)
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reactive.set_state('db.synced')
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@reactive.when('ha.connected')
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@reactive.when_not('ha.available')
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def cluster_connected(hacluster):
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"""Configure HA resources in corosync"""
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with charm.provide_charm_instance() as charm_class:
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charm_class.configure_ha_resources(hacluster)
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charm_class.assess_status()
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@reactive.when_not('ceph.create_pool.req.sent')
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@reactive.when('storage-ceph.connected')
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def storage_ceph_connected(ceph):
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ceph.create_pool(hookenv.service_name())
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reactive.set_state('ceph.create_pool.req.sent')
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@reactive.when('storage-ceph.available')
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def configure_ceph(ceph):
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with charm.provide_charm_instance() as charm_instance:
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charm_instance.configure_ceph_keyring(ceph.key())
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@reactive.when_not('storage-ceph.connected')
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def storage_ceph_disconnected():
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with charm.provide_charm_instance() as charm_instance:
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charm_instance.delete_ceph_keyring()
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@reactive.when('metric-service.connected')
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@reactive.when('config.rendered')
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@reactive.when('db.synced')
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def provide_gnocchi_url(metric_service):
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# Reactive endpoints are only fully functional in their respective relation
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# hooks. So we cannot rely on ha.is_clustered() which would return
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# False when not in a relation hook. Use flags instead.
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# Check if the optional relation, ha is connected. If it is,
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# check if it is available.
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if (reactive.flags.is_flag_set('ha.connected') and
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not reactive.flags.is_flag_set('ha.available')):
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hookenv.log("Hacluster is related but not yet clustered",
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hookenv.DEBUG)
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return
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with charm.provide_charm_instance() as charm_class:
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hookenv.log("Providing gnocchi URL: {}"
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.format(charm_class.public_url), hookenv.DEBUG)
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metric_service.set_gnocchi_url(charm_class.public_url)
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