106 lines
3.6 KiB
Python
106 lines
3.6 KiB
Python
# Copyright 2018 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 uuid
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import charms.reactive as reactive
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import charms.leadership as leadership
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import charms_openstack.charm as charm
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import charms_openstack.ip as os_ip
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import charmhelpers.core as ch_core
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import charm.openstack.octavia as octavia # noqa
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import charm.openstack.api_crud as api_crud
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charm.use_defaults(
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'charm.installed',
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'amqp.connected',
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'shared-db.connected',
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'identity-service.connected',
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'identity-service.available',
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'config.changed',
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'update-status')
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@reactive.when('leadership.is_leader')
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@reactive.when_not('leadership.set.heartbeat-key')
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def generate_heartbeat_key():
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"""Generate a unique key for ``heartbeat_key`` configuration option."""
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leadership.leader_set({'heartbeat-key': str(uuid.uuid4())})
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@reactive.when('neutron-load-balancer.available')
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def setup_neutron_lbaas_proxy():
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neutron = reactive.endpoint_from_flag('neutron-load-balancer.available')
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with charm.provide_charm_instance() as octavia_charm:
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octavia_url = '{}:{}'.format(
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os_ip.canonical_url(endpoint_type=os_ip.INTERNAL),
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octavia_charm.api_port('octavia-api'))
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neutron.publish_load_balancer_info('octavia', octavia_url)
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@reactive.when('leadership.is_leader')
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@reactive.when('identity-service.available')
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@reactive.when('config.default.custom-amp-flavor-id')
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def get_nova_flavor():
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"""Get or create private Nova flavor for use with Octavia."""
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identity_service = reactive.endpoint_from_flag(
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'identity-service.available')
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try:
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flavor = api_crud.get_nova_flavor(identity_service)
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except api_crud.APIUnavailable as e:
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ch_core.hookenv.log('Nova API not available yet, deferring '
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'flavor discovery/creation. ("{}")'
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.format(e),
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level=ch_core.hookenv.DEBUG)
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else:
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leadership.leader_set({'amp-flavor-id': flavor.id})
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@reactive.when('shared-db.available')
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@reactive.when('identity-service.available')
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@reactive.when('amqp.available')
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@reactive.when('leadership.set.heartbeat-key')
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def render(*args):
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"""
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Render the configuration for Octavia when all interfaces are available.
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"""
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with charm.provide_charm_instance() as octavia_charm:
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octavia_charm.render_with_interfaces(args)
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octavia_charm.enable_webserver_site()
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octavia_charm.assess_status()
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reactive.set_state('config.rendered')
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@reactive.when_not('db.synced')
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@reactive.when('config.rendered')
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def init_db():
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"""Run initial DB migrations when config is rendered."""
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with charm.provide_charm_instance() as octavia_charm:
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octavia_charm.db_sync()
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octavia_charm.restart_all()
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reactive.set_state('db.synced')
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octavia_charm.assess_status()
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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 octavia_charm:
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octavia_charm.configure_ha_resources(hacluster)
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octavia_charm.assess_status()
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