#!/usr/bin/python
#
# Copyright 2016 Canonical Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import shutil
import sys
import uuid
from subprocess import (
check_call,
)
from urlparse import urlparse
from charmhelpers.core.hookenv import (
Hooks,
UnregisteredHookError,
config,
charm_dir,
is_leader,
is_relation_made,
log,
local_unit,
DEBUG,
ERROR,
relation_get,
relation_ids,
relation_set,
related_units,
open_port,
unit_get,
status_set,
)
from charmhelpers.core.host import (
service_reload,
service_pause,
)
from charmhelpers.fetch import (
apt_install,
apt_update,
filter_installed_packages
)
from charmhelpers.contrib.openstack.utils import (
config_value_changed,
configure_installation_source,
git_install_requested,
openstack_upgrade_available,
os_release,
os_requires_version,
sync_db_with_multi_ipv6_addresses,
pausable_restart_on_change as restart_on_change,
is_unit_paused_set,
CompareOpenStackReleases,
)
from charmhelpers.contrib.openstack.neutron import (
network_manager,
)
from nova_cc_context import (
NeutronAPIContext,
NovaCellContext,
)
from charmhelpers.contrib.peerstorage import (
peer_retrieve,
peer_echo,
)
from nova_cc_utils import (
add_hosts_to_cell,
auth_token_config,
cmd_all_services,
determine_endpoints,
determine_packages,
determine_ports,
disable_package_apache_site,
disable_services,
do_openstack_upgrade,
enable_services,
git_install,
is_api_ready,
keystone_ca_cert_b64,
migrate_nova_databases,
placement_api_enabled,
save_script_rc,
services,
ssh_compute_add,
ssh_compute_remove,
ssh_known_hosts_lines,
ssh_authorized_keys_lines,
register_configs,
restart_map,
update_cell_database,
NOVA_CONF,
console_attributes,
service_guard,
guard_map,
get_topics,
setup_ipv6,
is_db_initialised,
assess_status,
update_aws_compat_services,
serial_console_settings,
)
from charmhelpers.contrib.hahelpers.cluster import (
get_hacluster_config,
https,
)
from charmhelpers.contrib.openstack.ha.utils import (
update_dns_ha_resource_params,
)
from charmhelpers.payload.execd import execd_preinstall
from charmhelpers.contrib.openstack.ip import (
canonical_url,
PUBLIC, INTERNAL, ADMIN,
resolve_address,
)
from charmhelpers.contrib.network.ip import (
format_ipv6_addr,
get_iface_for_address,
get_netmask_for_address,
is_ipv6,
get_relation_ip,
)
from charmhelpers.contrib.openstack.context import ADDRESS_TYPES
from charmhelpers.contrib.charmsupport import nrpe
from charmhelpers.contrib.hardening.harden import harden
try:
FileNotFoundError
except NameError:
# python3 compatibility
FileNotFoundError = OSError
hooks = Hooks()
CONFIGS = register_configs()
COLO_CONSOLEAUTH = 'inf: res_nova_consoleauth grp_nova_vips'
AGENT_CONSOLEAUTH = 'ocf:openstack:nova-consoleauth'
AGENT_CA_PARAMS = 'op monitor interval="5s"'
NOVA_CONSOLEAUTH_OVERRIDE = '/etc/init/nova-consoleauth.override'
def leader_init_db_if_ready(skip_acl_check=False, skip_cells_restarts=False,
db_rid=None, unit=None):
"""Initialise db if leader and db not yet intialised.
NOTE: must be called from database context.
"""
if not is_leader():
log("Not leader - skipping db init", level=DEBUG)
return
if is_db_initialised():
log("Database already initialised - skipping db init", level=DEBUG)
return
# Bugs 1353135 & 1187508. Dbs can appear to be ready before the units
# acl entry has been added. So, if the db supports passing a list of
# permitted units then check if we're in the list.
allowed_units = relation_get('nova_allowed_units', rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and local_unit() in
allowed_units.split()):
status_set('maintenance', 'Running nova db migration')
migrate_nova_databases()
log('Triggering remote cloud-compute restarts.')
[compute_joined(rid=rid, remote_restart=True)
for rid in relation_ids('cloud-compute')]
log('Triggering remote neutron-network-service restarts.')
[quantum_joined(rid=rid, remote_restart=True)
for rid in relation_ids('quantum-network-service')]
if not skip_cells_restarts:
log('Triggering remote cell restarts.')
[nova_cell_relation_joined(rid=rid, remote_restart=True)
for rid in relation_ids('cell')]
else:
log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def leader_init_db_if_ready_allowed_units():
"""Loop through all related db units and attempt to initialize db
By looping through all related db units, the relation ID and unit can
be passed to leader_init_db_if_ready(), enabling use of allowed_units
to determine if this nova-cc unit is allowed to perform db init.
"""
rels = ['shared-db', 'pgsql-nova-db']
for rname in rels:
for rid in relation_ids(rname):
for unit in related_units(rid):
if rname == 'pgsql-nova-db':
leader_init_db_if_ready(skip_acl_check=True,
skip_cells_restarts=True,
db_rid=rid, unit=unit)
else:
leader_init_db_if_ready(db_rid=rid, unit=unit)
def update_cell_db_if_ready(skip_acl_check=False, db_rid=None, unit=None):
"""Update the cells db if leader and db's are already intialised"""
if not is_leader():
return
if not is_db_initialised():
log("Database not initialised - skipping cell db update", level=DEBUG)
return
allowed_units = relation_get('nova_allowed_units', rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and local_unit() in
allowed_units.split()):
update_cell_database()
else:
log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def update_cell_db_if_ready_allowed_units():
"""Loop through all related db units and attempt to update cell db
By looping through all related db units, the relation ID and unit can
be passed to update_cell_db_if_ready(), enabling use of allowed_units
to determine if this nova-cc unit is allowed to perform db updates.
"""
rels = ['shared-db', 'pgsql-nova-db']
for rname in rels:
for rid in relation_ids(rname):
for unit in related_units(rid):
if rname == 'pgsql-nova-db':
update_cell_db_if_ready(skip_acl_check=True,
db_rid=rid, unit=unit)
else:
update_cell_db_if_ready(db_rid=rid, unit=unit)
@hooks.hook('install.real')
@harden()
def install():
status_set('maintenance', 'Executing pre-install')
execd_preinstall()
configure_installation_source(config('openstack-origin'))
status_set('maintenance', 'Installing apt packages')
apt_update()
apt_install(determine_packages(), fatal=True)
if placement_api_enabled():
disable_package_apache_site()
git_install(config('openstack-origin-git'))
_files = os.path.join(charm_dir(), 'files')
if os.path.isdir(_files):
for f in os.listdir(_files):
f = os.path.join(_files, f)
if os.path.isfile(f):
log('Installing %s to /usr/bin' % f)
shutil.copy2(f, '/usr/bin')
[open_port(port) for port in determine_ports()]
msg = 'Disabling services into db relation joined'
log(msg)
status_set('maintenance', msg)
disable_services()
cmd_all_services('stop')
@hooks.hook('config-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map(), stopstart=True)
@harden()
def config_changed():
# neutron-server runs if < juno. Neutron-server creates mysql tables
# which will subsequently cause db migratoins to fail if >= juno.
# Disable neutron-server if >= juno
if CompareOpenStackReleases(os_release('nova-common')) >= 'juno':
with open('/etc/init/neutron-server.override', 'wb') as out:
out.write('manual\n')
if config('prefer-ipv6'):
status_set('maintenance', 'configuring ipv6')
setup_ipv6()
sync_db_with_multi_ipv6_addresses(config('database'),
config('database-user'),
relation_prefix='nova')
global CONFIGS
if git_install_requested():
status_set('maintenance', 'Running Git install')
if config_value_changed('openstack-origin-git'):
git_install(config('openstack-origin-git'))
elif not config('action-managed-upgrade'):
if openstack_upgrade_available('nova-common'):
status_set('maintenance', 'Running openstack upgrade')
CONFIGS = do_openstack_upgrade(CONFIGS)
[neutron_api_relation_joined(rid=rid, remote_restart=True)
for rid in relation_ids('neutron-api')]
# NOTE(jamespage): Force re-fire of shared-db joined hook
# to ensure that nova_api database is setup if required.
[db_joined(relation_id=r_id)
for r_id in relation_ids('shared-db')]
save_script_rc()
configure_https()
CONFIGS.write_all()
# NOTE(jamespage): deal with any changes to the console and serial
# console configuration options
if not git_install_requested():
filtered = filter_installed_packages(determine_packages())
if filtered:
apt_install(filtered, fatal=True)
for rid in relation_ids('quantum-network-service'):
quantum_joined(rid=rid)
for r_id in relation_ids('identity-service'):
identity_joined(rid=r_id)
for rid in relation_ids('zeromq-configuration'):
zeromq_configuration_relation_joined(rid)
[cluster_joined(rid) for rid in relation_ids('cluster')]
[compute_joined(rid=rid) for rid in relation_ids('cloud-compute')]
update_nrpe_config()
# If the region value has changed, notify the cloud-compute relations
# to ensure the value is propagated to the compute nodes.
if config_value_changed('region'):
for rid in relation_ids('cloud-compute'):
for unit in related_units(rid):
compute_changed(rid, unit)
update_nova_consoleauth_config()
update_aws_compat_services()
@hooks.hook('amqp-relation-joined')
def amqp_joined(relation_id=None):
relation_set(relation_id=relation_id,
username=config('rabbit-user'), vhost=config('rabbit-vhost'))
@hooks.hook('amqp-relation-changed')
@hooks.hook('amqp-relation-departed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def amqp_changed():
if 'amqp' not in CONFIGS.complete_contexts():
log('amqp relation incomplete. Peer not ready?')
return
CONFIGS.write(NOVA_CONF)
# TODO: Replace the following check with a Cellsv2 context check.
if CompareOpenStackReleases(os_release('nova-common')) >= 'ocata':
# db init for cells v2 requires amqp transport_url and db connections
# to be set in nova.conf, so we attempt db init in here as well as the
# db relation-changed hooks.
leader_init_db_if_ready_allowed_units()
update_cell_db_if_ready_allowed_units()
[nova_cell_relation_joined(rid=rid)
for rid in relation_ids('cell')]
for r_id in relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
# NOTE: trigger restart on nova-api-metadata on
# neutron-gateway units once nova-cc has working
# amqp connection (avoiding service down on n-gateway)
for rid in relation_ids('quantum-network-service'):
quantum_joined(rid=rid, remote_restart=True)
@hooks.hook('shared-db-relation-joined')
def db_joined(relation_id=None):
if is_relation_made('pgsql-nova-db') or \
is_relation_made('pgsql-neutron-db'):
# error, postgresql is used
e = ('Attempting to associate a mysql database when there is already '
'associated a postgresql one')
log(e, level=ERROR)
raise Exception(e)
cmp_os_release = CompareOpenStackReleases(os_release('nova-common'))
if config('prefer-ipv6'):
sync_db_with_multi_ipv6_addresses(config('database'),
config('database-user'),
relation_prefix='nova')
if cmp_os_release >= 'mitaka':
# NOTE: mitaka uses a second nova-api database as well
sync_db_with_multi_ipv6_addresses('nova_api',
config('database-user'),
relation_prefix='novaapi')
if cmp_os_release >= 'ocata':
# NOTE: ocata requires cells v2
sync_db_with_multi_ipv6_addresses('nova_cell0',
config('database-user'),
relation_prefix='novacell0')
else:
# Avoid churn check for access-network early
access_network = None
for unit in related_units(relid=relation_id):
access_network = relation_get(rid=relation_id, unit=unit,
attribute='access-network')
if access_network:
break
host = get_relation_ip('shared-db', cidr_network=access_network)
relation_set(nova_database=config('database'),
nova_username=config('database-user'),
nova_hostname=host,
relation_id=relation_id)
if cmp_os_release >= 'mitaka':
# NOTE: mitaka uses a second nova-api database as well
relation_set(novaapi_database='nova_api',
novaapi_username=config('database-user'),
novaapi_hostname=host,
relation_id=relation_id)
if cmp_os_release >= 'ocata':
# NOTE: ocata requires cells v2
relation_set(novacell0_database='nova_cell0',
novacell0_username=config('database-user'),
novacell0_hostname=host,
relation_id=relation_id)
@hooks.hook('pgsql-nova-db-relation-joined')
def pgsql_nova_db_joined():
if is_relation_made('shared-db'):
# raise error
e = ('Attempting to associate a postgresql database'
' when there is already associated a mysql one')
log(e, level=ERROR)
raise Exception(e)
relation_set(database=config('database'))
@hooks.hook('shared-db-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def db_changed():
if 'shared-db' not in CONFIGS.complete_contexts():
log('shared-db relation incomplete. Peer not ready?')
return
CONFIGS.write_all()
# db init for cells v2 requires amqp transport_url and db connections to
# be set in nova.conf, so we attempt db init in here as well as the
# amqp-relation-changed hook.
leader_init_db_if_ready()
if CompareOpenStackReleases(os_release('nova-common')) >= 'ocata':
update_cell_db_if_ready()
@hooks.hook('pgsql-nova-db-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def postgresql_nova_db_changed():
if 'pgsql-nova-db' not in CONFIGS.complete_contexts():
log('pgsql-nova-db relation incomplete. Peer not ready?')
return
CONFIGS.write_all()
leader_init_db_if_ready(skip_acl_check=True, skip_cells_restarts=True)
if CompareOpenStackReleases(os_release('nova-common')) >= 'ocata':
update_cell_db_if_ready(skip_acl_check=True)
for r_id in relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
@hooks.hook('image-service-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def image_service_changed():
if 'image-service' not in CONFIGS.complete_contexts():
log('image-service relation incomplete. Peer not ready?')
return
CONFIGS.write(NOVA_CONF)
# TODO: special case config flag for essex (strip protocol)
for r_id in relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
@hooks.hook('identity-service-relation-joined')
def identity_joined(rid=None):
public_url = canonical_url(CONFIGS, PUBLIC)
internal_url = canonical_url(CONFIGS, INTERNAL)
admin_url = canonical_url(CONFIGS, ADMIN)
relation_set(relation_id=rid, **determine_endpoints(public_url,
internal_url,
admin_url))
@hooks.hook('identity-service-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def identity_changed():
if 'identity-service' not in CONFIGS.complete_contexts():
log('identity-service relation incomplete. Peer not ready?')
return
CONFIGS.write('/etc/nova/api-paste.ini')
CONFIGS.write(NOVA_CONF)
[compute_joined(rid) for rid in relation_ids('cloud-compute')]
[quantum_joined(rid) for rid in relation_ids('quantum-network-service')]
[nova_vmware_relation_joined(rid) for rid in relation_ids('nova-vmware')]
[neutron_api_relation_joined(rid) for rid in relation_ids('neutron-api')]
configure_https()
for r_id in relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
@hooks.hook('nova-volume-service-relation-joined',
'cinder-volume-service-relation-joined')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def volume_joined():
CONFIGS.write(NOVA_CONF)
# kick identity_joined() to publish possibly new nova-volume endpoint.
[identity_joined(rid) for rid in relation_ids('identity-service')]
def _auth_config():
'''Grab all KS auth token config from api-paste.ini, or return empty {}'''
ks_auth_host = auth_token_config('auth_host')
if not ks_auth_host:
# if there is no auth_host set, identity-service changed hooks
# have not fired, yet.
return {}
cfg = {
'auth_host': ks_auth_host,
'auth_port': auth_token_config('auth_port'),
'auth_protocol': auth_token_config('auth_protocol'),
'service_protocol': auth_token_config('service_protocol'),
'service_port': auth_token_config('service_port'),
'service_username': auth_token_config('admin_user'),
'service_password': auth_token_config('admin_password'),
'service_tenant_name': auth_token_config('admin_tenant_name'),
'auth_uri': auth_token_config('auth_uri'),
# quantum-gateway interface deviates a bit.
'keystone_host': ks_auth_host,
'service_tenant': auth_token_config('admin_tenant_name'),
# add api version if found
'api_version': auth_token_config('api_version') or '2.0',
}
return cfg
def save_novarc():
auth = _auth_config()
# XXX hard-coded http
ks_url = '%s://%s:%s/v%s' % (auth['auth_protocol'],
auth['auth_host'],
auth['auth_port'],
auth['api_version'])
with open('/etc/quantum/novarc', 'wb') as out:
out.write('export OS_USERNAME=%s\n' % auth['service_username'])
out.write('export OS_PASSWORD=%s\n' % auth['service_password'])
out.write('export OS_TENANT_NAME=%s\n' % auth['service_tenant_name'])
out.write('export OS_AUTH_URL=%s\n' % ks_url)
out.write('export OS_REGION_NAME=%s\n' % config('region'))
def neutron_settings():
neutron_settings = {}
if is_relation_made('neutron-api', 'neutron-plugin'):
neutron_api_info = NeutronAPIContext()()
neutron_settings.update({
# XXX: Rename these relations settings?
'quantum_plugin': neutron_api_info['neutron_plugin'],
'region': config('region'),
'quantum_security_groups':
neutron_api_info['neutron_security_groups'],
'quantum_url': neutron_api_info['neutron_url'],
})
neutron_url = urlparse(neutron_settings['quantum_url'])
neutron_settings['quantum_host'] = neutron_url.hostname
neutron_settings['quantum_port'] = neutron_url.port
return neutron_settings
def keystone_compute_settings():
ks_auth_config = _auth_config()
rel_settings = {}
if network_manager() == 'neutron':
if ks_auth_config:
rel_settings.update(ks_auth_config)
rel_settings.update(neutron_settings())
ks_ca = keystone_ca_cert_b64()
if ks_auth_config and ks_ca:
rel_settings['ca_cert'] = ks_ca
return rel_settings
def console_settings():
rel_settings = {}
proto = console_attributes('protocol')
if not proto:
return {}
rel_settings['console_keymap'] = config('console-keymap')
rel_settings['console_access_protocol'] = proto
console_ssl = False
if config('console-ssl-cert') and config('console-ssl-key'):
console_ssl = True
if config('console-proxy-ip') == 'local':
if console_ssl:
address = resolve_address(endpoint_type=PUBLIC)
address = format_ipv6_addr(address) or address
proxy_base_addr = 'https://%s' % address
else:
# canonical_url will only return 'https:' if API SSL are enabled.
proxy_base_addr = canonical_url(CONFIGS, PUBLIC)
else:
if console_ssl or https():
schema = "https"
else:
schema = "http"
proxy_base_addr = "%s://%s" % (schema, config('console-proxy-ip'))
if proto == 'vnc':
protocols = ['novnc', 'xvpvnc']
else:
protocols = [proto]
for _proto in protocols:
rel_settings['console_proxy_%s_address' % (_proto)] = \
"%s:%s%s" % (proxy_base_addr,
console_attributes('proxy-port', proto=_proto),
console_attributes('proxy-page', proto=_proto))
rel_settings['console_proxy_%s_host' % (_proto)] = \
urlparse(proxy_base_addr).hostname
rel_settings['console_proxy_%s_port' % (_proto)] = \
console_attributes('proxy-port', proto=_proto)
return rel_settings
@hooks.hook('cloud-compute-relation-joined')
def compute_joined(rid=None, remote_restart=False):
cons_settings = console_settings()
relation_set(relation_id=rid, **cons_settings)
rel_settings = {
'network_manager': network_manager(),
'volume_service': 'cinder',
# (comment from bash vers) XXX Should point to VIP if clustered, or
# this may not even be needed.
'ec2_host': unit_get('private-address'),
'region': config('region'),
}
rel_settings.update(serial_console_settings())
# update relation setting if we're attempting to restart remote
# services
if remote_restart:
rel_settings['restart_trigger'] = str(uuid.uuid4())
rel_settings.update(keystone_compute_settings())
relation_set(relation_id=rid, **rel_settings)
@hooks.hook('cloud-compute-relation-changed')
def compute_changed(rid=None, unit=None):
for r_id in relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
rel_settings = relation_get(rid=rid, unit=unit)
if not rel_settings.get('region', None) == config('region'):
relation_set(relation_id=rid, region=config('region'))
if is_db_initialised():
add_hosts_to_cell()
if 'migration_auth_type' not in rel_settings:
return
if rel_settings['migration_auth_type'] == 'ssh':
status_set('maintenance', 'configuring live migration')
key = rel_settings.get('ssh_public_key')
if not key:
log('SSH migration set but peer did not publish key.')
return
ssh_compute_add(key, rid=rid, unit=unit)
index = 0
for line in ssh_known_hosts_lines(unit=unit):
relation_set(
relation_id=rid,
relation_settings={
'known_hosts_{}'.format(index): line})
index += 1
relation_set(relation_id=rid, known_hosts_max_index=index)
index = 0
for line in ssh_authorized_keys_lines(unit=unit):
relation_set(
relation_id=rid,
relation_settings={
'authorized_keys_{}'.format(index): line})
index += 1
relation_set(relation_id=rid, authorized_keys_max_index=index)
if 'nova_ssh_public_key' not in rel_settings:
return
if rel_settings['nova_ssh_public_key']:
ssh_compute_add(rel_settings['nova_ssh_public_key'],
rid=rid, unit=unit, user='nova')
index = 0
for line in ssh_known_hosts_lines(unit=unit, user='nova'):
relation_set(
relation_id=rid,
relation_settings={
'{}_known_hosts_{}'.format(
'nova',
index): line})
index += 1
relation_set(
relation_id=rid,
relation_settings={
'{}_known_hosts_max_index'.format('nova'): index})
index = 0
for line in ssh_authorized_keys_lines(unit=unit, user='nova'):
relation_set(
relation_id=rid,
relation_settings={
'{}_authorized_keys_{}'.format(
'nova',
index): line})
index += 1
relation_set(
relation_id=rid,
relation_settings={
'{}_authorized_keys_max_index'.format('nova'): index})
@hooks.hook('cloud-compute-relation-departed')
def compute_departed():
ssh_compute_remove(public_key=relation_get('ssh_public_key'))
@hooks.hook('neutron-network-service-relation-joined',
'quantum-network-service-relation-joined')
def quantum_joined(rid=None, remote_restart=False):
rel_settings = neutron_settings()
# inform quantum about local keystone auth config
ks_auth_config = _auth_config()
rel_settings.update(ks_auth_config)
# must pass the keystone CA cert, if it exists.
ks_ca = keystone_ca_cert_b64()
if ks_auth_config and ks_ca:
rel_settings['ca_cert'] = ks_ca
# update relation setting if we're attempting to restart remote
# services
if remote_restart:
rel_settings['restart_trigger'] = str(uuid.uuid4())
relation_set(relation_id=rid, **rel_settings)
@hooks.hook('cluster-relation-joined')
def cluster_joined(relation_id=None):
settings = {}
for addr_type in ADDRESS_TYPES:
address = get_relation_ip(
addr_type,
cidr_network=config('os-{}-network'.format(addr_type)))
if address:
settings['{}-address'.format(addr_type)] = address
settings['private-address'] = get_relation_ip('cluster')
relation_set(relation_id=relation_id, relation_settings=settings)
@hooks.hook('cluster-relation-changed',
'cluster-relation-departed',
'leader-settings-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map(), stopstart=True)
def cluster_changed():
CONFIGS.write_all()
if relation_ids('cluster'):
peer_echo(includes=['dbsync_state'])
dbsync_state = peer_retrieve('dbsync_state')
if dbsync_state == 'complete':
enable_services()
cmd_all_services('start')
else:
log('Database sync not ready. Shutting down services')
disable_services()
cmd_all_services('stop')
@hooks.hook('ha-relation-joined')
def ha_joined(relation_id=None):
cluster_config = get_hacluster_config()
resources = {
'res_nova_haproxy': 'lsb:haproxy',
}
resource_params = {
'res_nova_haproxy': 'op monitor interval="5s"',
}
init_services = {
'res_nova_haproxy': 'haproxy'
}
clones = {
'cl_nova_haproxy': 'res_nova_haproxy'
}
colocations = {}
if config('dns-ha'):
update_dns_ha_resource_params(relation_id=relation_id,
resources=resources,
resource_params=resource_params)
else:
vip_group = []
for vip in cluster_config['vip'].split():
if is_ipv6(vip):
res_nova_vip = 'ocf:heartbeat:IPv6addr'
vip_params = 'ipv6addr'
else:
res_nova_vip = 'ocf:heartbeat:IPaddr2'
vip_params = 'ip'
iface = (get_iface_for_address(vip) or
config('vip_iface'))
netmask = (get_netmask_for_address(vip) or
config('vip_cidr'))
if iface is not None:
vip_key = 'res_nova_{}_vip'.format(iface)
resources[vip_key] = res_nova_vip
resource_params[vip_key] = (
'params {ip}="{vip}" cidr_netmask="{netmask}"'
' nic="{iface}"'.format(ip=vip_params,
vip=vip,
iface=iface,
netmask=netmask)
)
vip_group.append(vip_key)
if len(vip_group) >= 1:
relation_set(groups={'grp_nova_vips': ' '.join(vip_group)})
if (config('single-nova-consoleauth') and
console_attributes('protocol')):
colocations['vip_consoleauth'] = COLO_CONSOLEAUTH
init_services['res_nova_consoleauth'] = 'nova-consoleauth'
resources['res_nova_consoleauth'] = AGENT_CONSOLEAUTH
resource_params['res_nova_consoleauth'] = AGENT_CA_PARAMS
relation_set(relation_id=relation_id,
init_services=init_services,
corosync_bindiface=cluster_config['ha-bindiface'],
corosync_mcastport=cluster_config['ha-mcastport'],
resources=resources,
resource_params=resource_params,
clones=clones,
colocations=colocations)
@hooks.hook('ha-relation-changed')
def ha_changed():
clustered = relation_get('clustered')
if not clustered or clustered in [None, 'None', '']:
log('ha_changed: hacluster subordinate not fully clustered.')
return
CONFIGS.write(NOVA_CONF)
log('Cluster configured, notifying other services and updating '
'keystone endpoint configuration')
for rid in relation_ids('identity-service'):
identity_joined(rid=rid)
update_nova_consoleauth_config()
@hooks.hook('shared-db-relation-broken',
'pgsql-nova-db-relation-broken')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
def db_departed():
CONFIGS.write_all()
if CompareOpenStackReleases(os_release('nova-common')) >= 'ocata':
update_cell_db_if_ready(skip_acl_check=True)
for r_id in relation_ids('cluster'):
relation_set(relation_id=r_id, dbsync_state='incomplete')
disable_services()
cmd_all_services('stop')
@hooks.hook('amqp-relation-broken',
'cinder-volume-service-relation-broken',
'identity-service-relation-broken',
'image-service-relation-broken',
'nova-volume-service-relation-broken',
'pgsql-neutron-db-relation-broken',
'quantum-network-service-relation-broken')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
def relation_broken():
CONFIGS.write_all()
[nova_cell_relation_joined(rid=rid)
for rid in relation_ids('cell')]
def configure_https():
'''
Enables SSL API Apache config if appropriate and kicks identity-service
with any required api updates.
'''
# need to write all to ensure changes to the entire request pipeline
# propagate (c-api, haprxy, apache)
CONFIGS.write_all()
if 'https' in CONFIGS.complete_contexts():
cmd = ['a2ensite', 'openstack_https_frontend']
check_call(cmd)
else:
cmd = ['a2dissite', 'openstack_https_frontend']
check_call(cmd)
# TODO: improve this by checking if local CN certs are available
# first then checking reload status (see LP #1433114).
if not is_unit_paused_set():
service_reload('apache2', restart_on_failure=True)
for rid in relation_ids('identity-service'):
identity_joined(rid=rid)
@hooks.hook()
def nova_vmware_relation_joined(rid=None):
rel_settings = {'network_manager': network_manager()}
ks_auth = _auth_config()
if ks_auth:
rel_settings.update(ks_auth)
rel_settings.update(neutron_settings())
relation_set(relation_id=rid, **rel_settings)
@hooks.hook('nova-vmware-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def nova_vmware_relation_changed():
CONFIGS.write('/etc/nova/nova.conf')
@hooks.hook('upgrade-charm')
@harden()
def upgrade_charm():
apt_install(filter_installed_packages(determine_packages()),
fatal=True)
for r_id in relation_ids('amqp'):
amqp_joined(relation_id=r_id)
for r_id in relation_ids('identity-service'):
identity_joined(rid=r_id)
for r_id in relation_ids('cloud-compute'):
for unit in related_units(r_id):
compute_changed(r_id, unit)
for r_id in relation_ids('shared-db'):
db_joined(relation_id=r_id)
leader_init_db_if_ready_allowed_units()
update_nrpe_config()
update_nova_consoleauth_config()
# remote_restart is defaulted to true as nova-cells may have started the
# nova-cell process before the db migration was run so it will need a
# kick
@hooks.hook('cell-relation-joined')
def nova_cell_relation_joined(rid=None, remote_restart=True):
rel_settings = {
'nova_url': "%s:8774/v2" % canonical_url(CONFIGS, INTERNAL)
}
if remote_restart:
rel_settings['restart_trigger'] = str(uuid.uuid4())
relation_set(relation_id=rid, **rel_settings)
@hooks.hook('cell-relation-changed')
@restart_on_change(restart_map())
def nova_cell_relation_changed():
CONFIGS.write(NOVA_CONF)
def get_cell_type():
cell_info = NovaCellContext()()
if 'cell_type' in cell_info:
return cell_info['cell_type']
return None
@hooks.hook('neutron-api-relation-joined')
def neutron_api_relation_joined(rid=None, remote_restart=False):
for id_rid in relation_ids('identity-service'):
identity_joined(rid=id_rid)
rel_settings = {
'nova_url': canonical_url(CONFIGS, INTERNAL) + ":8774/v2"
}
if get_cell_type():
rel_settings['cell_type'] = get_cell_type()
if remote_restart:
rel_settings['restart_trigger'] = str(uuid.uuid4())
relation_set(relation_id=rid, **rel_settings)
@hooks.hook('neutron-api-relation-changed')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def neutron_api_relation_changed():
CONFIGS.write(NOVA_CONF)
for rid in relation_ids('cloud-compute'):
compute_joined(rid=rid)
for rid in relation_ids('quantum-network-service'):
quantum_joined(rid=rid)
@hooks.hook('neutron-api-relation-broken')
@service_guard(guard_map(), CONFIGS,
active=config('service-guard'))
@restart_on_change(restart_map())
def neutron_api_relation_broken():
CONFIGS.write_all()
for rid in relation_ids('cloud-compute'):
compute_joined(rid=rid)
for rid in relation_ids('quantum-network-service'):
quantum_joined(rid=rid)
@hooks.hook('zeromq-configuration-relation-joined')
@os_requires_version('kilo', 'nova-common')
def zeromq_configuration_relation_joined(relid=None):
relation_set(relation_id=relid,
topics=" ".join(get_topics()),
users="nova")
@hooks.hook('nrpe-external-master-relation-joined',
'nrpe-external-master-relation-changed')
def update_nrpe_config():
# python-dbus is used by check_upstart_job
apt_install('python-dbus')
hostname = nrpe.get_nagios_hostname()
current_unit = nrpe.get_nagios_unit_name()
nrpe_setup = nrpe.NRPE(hostname=hostname)
nrpe.copy_nrpe_checks()
nrpe.add_init_service_checks(nrpe_setup, services(), current_unit)
nrpe.add_haproxy_checks(nrpe_setup, current_unit)
nrpe_setup.write()
@hooks.hook('memcache-relation-joined')
def memcached_joined():
"""When memcache relation joins we want to set our private address as the
spaces address rather than leaving it as the unit address. This is to
support network spaces in the memcached charm.
"""
relation_set(
relation_id=None,
relation_settings={'private-address': get_relation_ip('memcache')})
memcached_common()
@hooks.hook('memcache-relation-departed',
'memcache-relation-changed',
'memcache-relation-broken')
def memcached_other_hooks():
memcached_common()
@restart_on_change(restart_map())
def memcached_common():
CONFIGS.write(NOVA_CONF)
@hooks.hook('zeromq-configuration-relation-changed')
@restart_on_change(restart_map(), stopstart=True)
def zeromq_configuration_relation_changed():
CONFIGS.write(NOVA_CONF)
def update_nova_consoleauth_config():
"""
Configure nova-consoleauth pacemaker resources
"""
relids = relation_ids('ha')
if len(relids) == 0:
log('Related to {} ha services'.format(len(relids)), level='DEBUG')
ha_relid = None
data = {}
else:
ha_relid = relids[0]
data = relation_get(rid=ha_relid) or {}
# initialize keys in case this is a new dict
data.setdefault('delete_resources', [])
for k in ['colocations', 'init_services', 'resources', 'resource_params']:
data.setdefault(k, {})
if config('single-nova-consoleauth') and console_attributes('protocol'):
for item in ['vip_consoleauth', 'res_nova_consoleauth']:
try:
data['delete_resources'].remove(item)
except ValueError:
pass # nothing to remove, we are good
# the new pcmkr resources have to be added to the existing ones
data['colocations']['vip_consoleauth'] = COLO_CONSOLEAUTH
data['init_services']['res_nova_consoleauth'] = 'nova-consoleauth'
data['resources']['res_nova_consoleauth'] = AGENT_CONSOLEAUTH
data['resource_params']['res_nova_consoleauth'] = AGENT_CA_PARAMS
for rid in relation_ids('ha'):
relation_set(rid, **data)
# nova-consoleauth will be managed by pacemaker, so stop it
# and prevent it to be started again at boot. (LP: #1693629).
if relation_ids('ha'):
service_pause('nova-consoleauth')
elif (not config('single-nova-consoleauth') and
console_attributes('protocol')):
for item in ['vip_consoleauth', 'res_nova_consoleauth']:
if item not in data['delete_resources']:
data['delete_resources'].append(item)
# remove them from the rel, so they aren't recreated when the hook
# is recreated
data['colocations'].pop('vip_consoleauth', None)
data['init_services'].pop('res_nova_consoleauth', None)
data['resources'].pop('res_nova_consoleauth', None)
data['resource_params'].pop('res_nova_consoleauth', None)
for rid in relation_ids('ha'):
relation_set(rid, **data)
try:
os.remove(NOVA_CONSOLEAUTH_OVERRIDE)
except FileNotFoundError as e:
log(str(e), level='DEBUG')
def nova_api_relation_joined(rid=None):
rel_data = {
'nova-api-ready': 'yes' if is_api_ready(CONFIGS) else 'no'
}
relation_set(rid, **rel_data)
@hooks.hook('update-status')
@harden()
def update_status():
log('Updating status.')
def main():
try:
hooks.execute(sys.argv)
except UnregisteredHookError as e:
log('Unknown hook {} - skipping.'.format(e))
assess_status(CONFIGS)
if __name__ == '__main__':
main()