427 lines
13 KiB
Python
Executable File
427 lines
13 KiB
Python
Executable File
#!/usr/bin/python
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import json
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import os
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import sys
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import uuid
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from subprocess import check_call
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from cinder_utils import (
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determine_packages,
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do_openstack_upgrade,
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juju_log,
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migrate_database,
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configure_lvm_storage,
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register_configs,
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restart_map,
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service_enabled,
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set_ceph_env_variables,
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CLUSTER_RES,
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CINDER_CONF,
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CINDER_API_CONF,
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ceph_config_file,
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setup_ipv6
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)
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from charmhelpers.core.hookenv import (
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Hooks,
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UnregisteredHookError,
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config,
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is_relation_made,
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local_unit,
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relation_get,
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relation_ids,
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relation_set,
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service_name,
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unit_get,
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log,
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ERROR,
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INFO
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)
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from charmhelpers.fetch import (
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apt_install,
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apt_update
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)
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from charmhelpers.core.host import lsb_release, restart_on_change
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from charmhelpers.contrib.openstack.utils import (
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configure_installation_source,
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openstack_upgrade_available,
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sync_db_with_multi_ipv6_addresses)
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from charmhelpers.contrib.storage.linux.ceph import ensure_ceph_keyring
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from charmhelpers.contrib.hahelpers.cluster import (
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eligible_leader,
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get_hacluster_config,
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)
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from charmhelpers.payload.execd import execd_preinstall
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from charmhelpers.contrib.network.ip import (
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get_iface_for_address,
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get_netmask_for_address,
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get_address_in_network,
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get_ipv6_addr,
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is_ipv6
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)
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from charmhelpers.contrib.openstack.ip import (
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canonical_url,
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PUBLIC, INTERNAL, ADMIN
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)
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from charmhelpers.contrib.openstack.context import ADDRESS_TYPES
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hooks = Hooks()
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CONFIGS = register_configs()
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@hooks.hook('install')
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def install():
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execd_preinstall()
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conf = config()
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src = conf['openstack-origin']
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if (lsb_release()['DISTRIB_CODENAME'] == 'precise' and
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src == 'distro'):
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src = 'cloud:precise-folsom'
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configure_installation_source(src)
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apt_update()
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apt_install(determine_packages(), fatal=True)
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@hooks.hook('config-changed')
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@restart_on_change(restart_map(), stopstart=True)
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def config_changed():
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conf = config()
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if conf['prefer-ipv6']:
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setup_ipv6()
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sync_db_with_multi_ipv6_addresses(config('database'),
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config('database-user'))
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if (service_enabled('volume') and
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conf['block-device'] not in [None, 'None', 'none']):
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block_devices = conf['block-device'].split()
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configure_lvm_storage(block_devices,
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conf['volume-group'],
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conf['overwrite'] in ['true', 'True', True],
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conf['remove-missing'])
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if openstack_upgrade_available('cinder-common'):
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do_openstack_upgrade(configs=CONFIGS)
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# NOTE(jamespage) tell any storage-backends we just upgraded
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for rid in relation_ids('storage-backend'):
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relation_set(relation_id=rid,
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upgrade_nonce=uuid.uuid4())
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CONFIGS.write_all()
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configure_https()
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for rid in relation_ids('cluster'):
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cluster_joined(relation_id=rid)
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@hooks.hook('shared-db-relation-joined')
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def db_joined():
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if is_relation_made('pgsql-db'):
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# error, postgresql is used
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e = ('Attempting to associate a mysql database when there is already '
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'associated a postgresql one')
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log(e, level=ERROR)
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raise Exception(e)
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if config('prefer-ipv6'):
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sync_db_with_multi_ipv6_addresses(config('database'),
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config('database-user'))
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else:
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host = unit_get('private-address')
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conf = config()
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relation_set(database=conf['database'],
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username=conf['database-user'],
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hostname=host)
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@hooks.hook('pgsql-db-relation-joined')
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def pgsql_db_joined():
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if is_relation_made('shared-db'):
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# raise error
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e = ('Attempting to associate a postgresql database when there is'
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' already associated a mysql one')
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log(e, level=ERROR)
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raise Exception(e)
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conf = config()
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relation_set(database=conf['database'])
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@hooks.hook('shared-db-relation-changed')
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@restart_on_change(restart_map())
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def db_changed():
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if 'shared-db' not in CONFIGS.complete_contexts():
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juju_log('shared-db relation incomplete. Peer not ready?')
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return
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CONFIGS.write(CINDER_CONF)
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if eligible_leader(CLUSTER_RES):
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# Bugs 1353135 & 1187508. Dbs can appear to be ready before the units
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# acl entry has been added. So, if the db supports passing a list of
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# permitted units then check if we're in the list.
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allowed_units = relation_get('allowed_units')
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if allowed_units and local_unit() not in allowed_units.split():
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juju_log('Allowed_units list provided and this unit not present')
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return
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juju_log('Cluster leader, performing db sync')
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migrate_database()
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@hooks.hook('pgsql-db-relation-changed')
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@restart_on_change(restart_map())
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def pgsql_db_changed():
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if 'pgsql-db' not in CONFIGS.complete_contexts():
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juju_log('pgsql-db relation incomplete. Peer not ready?')
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return
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CONFIGS.write(CINDER_CONF)
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if eligible_leader(CLUSTER_RES):
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juju_log('Cluster leader, performing db sync')
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migrate_database()
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@hooks.hook('amqp-relation-joined')
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def amqp_joined(relation_id=None):
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conf = config()
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relation_set(relation_id=relation_id,
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username=conf['rabbit-user'], vhost=conf['rabbit-vhost'])
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@hooks.hook('amqp-relation-changed')
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@restart_on_change(restart_map())
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def amqp_changed():
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if 'amqp' not in CONFIGS.complete_contexts():
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juju_log('amqp relation incomplete. Peer not ready?')
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return
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CONFIGS.write(CINDER_CONF)
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@hooks.hook('amqp-relation-departed')
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@restart_on_change(restart_map())
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def amqp_departed():
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if 'amqp' not in CONFIGS.complete_contexts():
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juju_log('amqp relation incomplete. Peer not ready?')
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return
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CONFIGS.write(CINDER_CONF)
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@hooks.hook('identity-service-relation-joined')
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def identity_joined(rid=None):
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public_url = '{}:{}/v1/$(tenant_id)s'.format(
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canonical_url(CONFIGS, PUBLIC),
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config('api-listening-port')
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)
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internal_url = '{}:{}/v1/$(tenant_id)s'.format(
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canonical_url(CONFIGS, INTERNAL),
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config('api-listening-port')
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)
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admin_url = '{}:{}/v1/$(tenant_id)s'.format(
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canonical_url(CONFIGS, ADMIN),
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config('api-listening-port')
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)
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settings = {
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'region': config('region'),
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'service': 'cinder',
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'public_url': public_url,
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'internal_url': internal_url,
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'admin_url': admin_url,
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}
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relation_set(relation_id=rid, **settings)
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@hooks.hook('identity-service-relation-changed')
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@restart_on_change(restart_map())
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def identity_changed():
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if 'identity-service' not in CONFIGS.complete_contexts():
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juju_log('identity-service relation incomplete. Peer not ready?')
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return
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CONFIGS.write(CINDER_API_CONF)
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configure_https()
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@hooks.hook('ceph-relation-joined')
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def ceph_joined():
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if not os.path.isdir('/etc/ceph'):
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os.mkdir('/etc/ceph')
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apt_install('ceph-common', fatal=True)
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@hooks.hook('ceph-relation-changed')
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@restart_on_change(restart_map())
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def ceph_changed(relation_id=None):
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if 'ceph' not in CONFIGS.complete_contexts():
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juju_log('ceph relation incomplete. Peer not ready?')
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return
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settings = relation_get(rid=relation_id)
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svc = service_name()
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if not ensure_ceph_keyring(service=svc,
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user='cinder', group='cinder'):
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juju_log('Could not create ceph keyring: peer not ready?')
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return
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if 'broker_rsp' in settings:
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rsp = settings['broker_rsp']
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if not rsp:
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log("Ceph broker request failed (rsp=%s)" % (rsp), level=ERROR)
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return
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else:
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log("Ceph broker request succeeded (rsp=%s)" % (rsp), level=INFO)
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else:
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broker_ops = [{'op': 'create_pool', 'pool': svc,
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'replicas': config('ceph-osd-replication-count')}]
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for rid in relation_ids('ceph'):
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relation_set(relation_id=rid, broker_req=json.dumps(broker_ops))
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log("Request sent to Ceph broker (rid=%s)" % (rid))
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set_ceph_env_variables(service=svc)
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CONFIGS.write(CINDER_CONF)
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CONFIGS.write(ceph_config_file())
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@hooks.hook('cluster-relation-joined')
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def cluster_joined(relation_id=None):
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for addr_type in ADDRESS_TYPES:
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address = get_address_in_network(
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config('os-{}-network'.format(addr_type))
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)
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if address:
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relation_set(
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relation_id=relation_id,
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relation_settings={'{}-address'.format(addr_type): address}
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)
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if config('prefer-ipv6'):
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private_addr = get_ipv6_addr(exc_list=[config('vip')])[0]
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relation_set(relation_id=relation_id,
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relation_settings={'private-address': private_addr})
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@hooks.hook('cluster-relation-changed',
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'cluster-relation-departed')
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@restart_on_change(restart_map(), stopstart=True)
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def cluster_changed():
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CONFIGS.write_all()
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@hooks.hook('ha-relation-joined')
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def ha_joined():
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cluster_config = get_hacluster_config()
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resources = {
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'res_cinder_haproxy': 'lsb:haproxy'
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}
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resource_params = {
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'res_cinder_haproxy': 'op monitor interval="5s"'
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}
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vip_group = []
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for vip in cluster_config['vip'].split():
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if is_ipv6(vip):
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res_cinder_vip = 'ocf:heartbeat:IPv6addr'
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vip_params = 'ipv6addr'
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else:
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res_cinder_vip = 'ocf:heartbeat:IPaddr2'
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vip_params = 'ip'
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iface = get_iface_for_address(vip)
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if iface is not None:
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vip_key = 'res_cinder_{}_vip'.format(iface)
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resources[vip_key] = res_cinder_vip
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resource_params[vip_key] = (
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'params {ip}="{vip}" cidr_netmask="{netmask}"'
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' nic="{iface}"'.format(ip=vip_params,
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vip=vip,
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iface=iface,
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netmask=get_netmask_for_address(vip))
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)
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vip_group.append(vip_key)
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if len(vip_group) >= 1:
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relation_set(groups={'grp_cinder_vips': ' '.join(vip_group)})
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init_services = {
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'res_cinder_haproxy': 'haproxy'
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}
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clones = {
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'cl_cinder_haproxy': 'res_cinder_haproxy'
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}
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relation_set(init_services=init_services,
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corosync_bindiface=cluster_config['ha-bindiface'],
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corosync_mcastport=cluster_config['ha-mcastport'],
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resources=resources,
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resource_params=resource_params,
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clones=clones)
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@hooks.hook('ha-relation-changed')
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def ha_changed():
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clustered = relation_get('clustered')
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if not clustered or clustered in [None, 'None', '']:
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juju_log('ha_changed: hacluster subordinate not fully clustered.')
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else:
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juju_log('Cluster configured, notifying other services and updating '
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'keystone endpoint configuration')
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for rid in relation_ids('identity-service'):
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identity_joined(rid=rid)
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@hooks.hook('image-service-relation-changed')
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@restart_on_change(restart_map())
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def image_service_changed():
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CONFIGS.write(CINDER_CONF)
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@hooks.hook('amqp-relation-broken',
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'ceph-relation-broken',
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'identity-service-relation-broken',
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'image-service-relation-broken',
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'shared-db-relation-broken',
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'pgsql-db-relation-broken')
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@restart_on_change(restart_map(), stopstart=True)
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def relation_broken():
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CONFIGS.write_all()
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def configure_https():
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'''Enables SSL API Apache config if appropriate and kicks identity-service
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with any required api updates.
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'''
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# need to write all to ensure changes to the entire request pipeline
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# propagate (c-api, haprxy, apache)
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CONFIGS.write_all()
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if 'https' in CONFIGS.complete_contexts():
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cmd = ['a2ensite', 'openstack_https_frontend']
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check_call(cmd)
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else:
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cmd = ['a2dissite', 'openstack_https_frontend']
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check_call(cmd)
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for rid in relation_ids('identity-service'):
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identity_joined(rid=rid)
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@hooks.hook('upgrade-charm')
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def upgrade_charm():
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for rel_id in relation_ids('amqp'):
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amqp_joined(relation_id=rel_id)
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@hooks.hook('storage-backend-relation-changed')
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@hooks.hook('storage-backend-relation-broken')
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@restart_on_change(restart_map())
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def storage_backend():
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CONFIGS.write(CINDER_CONF)
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if __name__ == '__main__':
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try:
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hooks.execute(sys.argv)
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except UnregisteredHookError as e:
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juju_log('Unknown hook {} - skipping.'.format(e))
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