111 lines
2.8 KiB
Python
111 lines
2.8 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 charms.reactive as reactive
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# This charm's library contains all of the handler code associated with
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# aodh
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import charm.openstack.aodh as aodh
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# Minimal inferfaces required for operation
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MINIMAL_INTERFACES = [
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'shared-db.available',
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'identity-service.available',
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'amqp.available',
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]
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# use a synthetic state to ensure that it get it to be installed independent of
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# the install hook.
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@reactive.when_not('charm.installed')
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def install_packages():
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aodh.install()
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reactive.set_state('charm.installed')
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@reactive.when('amqp.connected')
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def setup_amqp_req(amqp):
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"""Use the amqp interface to request access to the amqp broker using our
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local configuration.
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"""
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amqp.request_access(username='aodh',
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vhost='openstack')
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aodh.assess_status()
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@reactive.when('shared-db.connected')
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def setup_database(database):
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"""On receiving database credentials, configure the database on the
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interface.
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"""
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database.configure('aodh', 'aodh')
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aodh.assess_status()
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@reactive.when('identity-service.connected')
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def setup_endpoint(keystone):
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aodh.setup_endpoint(keystone)
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aodh.configure_ssl()
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aodh.assess_status()
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def render(*args):
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aodh.render_configs(args)
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reactive.set_state('config.complete')
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aodh.assess_status()
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@reactive.when('charm.installed')
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@reactive.when_not('cluster.available')
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@reactive.when(*MINIMAL_INTERFACES)
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def render_unclustered(*args):
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aodh.upgrade_if_available(args)
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aodh.configure_ssl()
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render(*args)
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@reactive.when('charm.installed')
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@reactive.when('cluster.available',
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*MINIMAL_INTERFACES)
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def render_clustered(*args):
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aodh.upgrade_if_available(args)
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render(*args)
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@reactive.when('charm.installed')
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@reactive.when('config.complete')
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@reactive.when_not('db.synced')
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def run_db_migration():
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aodh.db_sync()
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aodh.restart_all()
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reactive.set_state('db.synced')
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aodh.assess_status()
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@reactive.when('ha.connected')
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def cluster_connected(hacluster):
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aodh.configure_ha_resources(hacluster)
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@reactive.hook('upgrade-charm')
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def upgrade_charm():
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aodh.install()
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# TODO: drop once charm switches to apache+mod_wsgi
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@reactive.when_file_changed(aodh.AODH_API_SYSTEMD_CONF)
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def systemd_override_changed():
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aodh.reload_and_restart()
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