Merge "Standardize the configuration of "oslo_messaging" section"

This commit is contained in:
Zuul 2019-08-15 20:04:56 +00:00 committed by Gerrit Code Review
commit aa135e37f7
45 changed files with 331 additions and 25 deletions
ansible
group_vars
roles
barbican/templates
blazar
defaults
templates
cyborg
defaults
templates
designate
defaults
templates
heat
defaults
templates
ironic
defaults
templates
karbor
defaults
templates
keystone
defaults
templates
magnum
defaults
templates
manila
defaults
templates
mistral
defaults
templates
murano
defaults
templates
nova-hyperv
nova/templates
sahara
defaults
templates
searchlight
senlin
defaults
templates
tacker
defaults
templates
trove
vitrage
defaults
templates
watcher
defaults
templates
releasenotes/notes

@ -520,6 +520,7 @@ enable_haproxy_memcached: "yes"
enable_aodh: "no"
enable_barbican: "no"
enable_blazar: "no"
# NOTE: This variable has been deprecated and will be removed in the U cycle.
enable_cadf_notifications: "no"
enable_ceilometer: "no"
enable_ceilometer_ipmi: "no"

@ -46,6 +46,9 @@ kek = '{{ barbican_crypto_key }}'
[keystone_notifications]
enable = True
{% if enable_keystone | bool %}
topic = barbican_notifications
{% endif %}
[keystone_authtoken]
www_authenticate_uri = {{ keystone_internal_url }}

@ -95,3 +95,13 @@ blazar_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
blazar_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
blazar_dev_mode: "{{ kolla_dev_mode }}"
blazar_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
blazar_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
blazar_enabled_notification_topics: "{{ blazar_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -50,13 +50,14 @@ blazar_password = {{ blazar_keystone_password }}
blazar_project_name = service
[oslo_messaging_notifications]
{% if enable_ceilometer | bool %}
{% if blazar_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ blazar_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if blazar_policy_file is defined %}
[oslo_policy]
policy_file = {{ blazar_policy_file }}

@ -86,3 +86,13 @@ cyborg_logging_debug: "{{ openstack_logging_debug }}"
cyborg_keystone_user: "cyborg"
openstack_cyborg_auth: "{{ openstack_auth }}"
####################
# Notifications
####################
cyborg_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
cyborg_enabled_notification_topics: "{{ cyborg_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -33,3 +33,9 @@ policy_file = {{ cyborg_policy_file }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if cyborg_enabled_notification_topics %}
driver = messagingv2
topics = {{ cyborg_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -206,3 +206,15 @@ designate_infoblox_auth_username: ""
designate_infoblox_auth_password: ""
designate_infoblox_multi_tenant: "false"
designate_infoblox_ns_group: ""
####################
# Notifications
####################
designate_notifications_topic_name: "notifications_designate"
designate_notification_topics:
- name: "{{ designate_notifications_topic_name }}"
enabled: True
designate_enabled_notification_topics: "{{ designate_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -80,7 +80,7 @@ idle_timeout = 3600
[handler:nova_fixed]
#NOTE: zone_id must be manually filled an ID from openstack zone list
zone_id =
notification_topics = notifications_designate
notification_topics = {{ designate_notifications_topic_name }}
control_exchange = nova
formatv4 = '%(octet0)s-%(octet1)s-%(octet2)s-%(octet3)s.%(zone)s'
formatv4 = '%(hostname)s.%(project)s.%(zone)s'
@ -91,14 +91,18 @@ formatv6 = '%(hostname)s.%(project)s.%(zone)s'
[handler:neutron_floatingip]
#NOTE: zone_id must be manually filled an ID from openstack zone list
zone_id =
notification_topics = notifications_designate
notification_topics = {{ designate_notifications_topic_name }}
control_exchange = neutron
formatv4 = '%(octet0)s-%(octet1)s-%(octet2)s-%(octet3)s.%(zone)s'
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
topics = notifications_designate
{% if designate_enabled_notification_topics %}
driver = messagingv2
topics = {{ designate_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[oslo_concurrency]
lock_path = /var/lib/designate/tmp

@ -127,3 +127,12 @@ heat_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
heat_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
heat_dev_mode: "{{ kolla_dev_mode }}"
heat_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
heat_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
heat_enabled_notification_topics: "{{ heat_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -77,9 +77,9 @@ auth_uri = {{ keystone_public_url }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if heat_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ heat_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -191,7 +191,6 @@ openstack_ironic_inspector_auth: "{{ openstack_auth }}"
#########
# Ironic
#########
ironic_dnsmasq_interface: "{{ api_interface }}"
ironic_dnsmasq_dhcp_range:
ironic_dnsmasq_default_gateway:
@ -203,6 +202,7 @@ ironic_enable_rolling_upgrade: "yes"
ironic_inspector_kernel_cmdline_extras: []
ironic_inspector_pxe_filter: "{% if enable_neutron | bool %}dnsmasq{% else %}none{% endif %}"
####################
## Kolla
#####################
@ -211,3 +211,13 @@ ironic_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
ironic_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
ironic_dev_mode: "{{ kolla_dev_mode }}"
ironic_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
ironic_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
ironic_enabled_notification_topics: "{{ ironic_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -21,6 +21,12 @@ pin_release_version = {{ pin_release_version }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if ironic_enabled_notification_topics %}
driver = messagingv2
topics = {{ ironic_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if ironic_policy_file is defined %}
[oslo_policy]

@ -96,3 +96,13 @@ karbor_logging_debug: "{{ openstack_logging_debug }}"
karbor_keystone_user: "karbor"
openstack_karbor_auth: "{{ openstack_auth }}"
####################
# Notification
####################
karbor_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
karbor_enabled_notification_topics: "{{ karbor_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -46,6 +46,12 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if karbor_enabled_notification_topics %}
driver = messagingv2
topics = {{ karbor_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[oslo_middleware]
enable_proxy_headers_parsing = True

@ -113,3 +113,18 @@ keystone_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
keystone_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
keystone_dev_mode: "{{ kolla_dev_mode }}"
keystone_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
keystone_default_notifications_topic_enabled: "{{ (enable_ceilometer | bool ) or (enable_cadf_notifications | bool)}}"
keystone_default_notifications_topic_name: "notifications"
keystone_notification_topics:
- name: "{{ keystone_default_notifications_topic_name }}"
enabled: "{{ keystone_default_notifications_topic_enabled | bool }}"
- name: barbican_notifications
enabled: "{{ enable_barbican | bool }}"
keystone_enabled_notification_topics: "{{ keystone_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -1,8 +1,5 @@
[DEFAULT]
debug = {{ keystone_logging_debug }}
{% if enable_cadf_notifications | bool %}
notification_format = cadf
{% endif %}
transport_url = {{ rpc_transport_url }}
@ -53,10 +50,14 @@ memcache_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansib
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_cadf_notifications | bool %}
{% if keystone_enabled_notification_topics %}
driver = messagingv2
topics = {{ keystone_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if enable_osprofiler | bool %}
[profiler]
enabled = true

@ -105,3 +105,13 @@ magnum_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
magnum_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
magnum_dev_mode: "{{ kolla_dev_mode }}"
magnum_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
magnum_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
magnum_enabled_notification_topics: "{{ magnum_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -91,9 +91,9 @@ cert_manager_type = x509keypair
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if magnum_enabled_notification_topics %}
driver = messaging
topics = notifications
topics = {{ magnum_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -183,3 +183,13 @@ manila_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
manila_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
manila_dev_mode: "{{ kolla_dev_mode }}"
manila_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
manila_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
manila_enabled_notification_topics: "{{ manila_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -44,6 +44,13 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if manila_enabled_notification_topics %}
driver = messagingv2
topics = {{ manila_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[oslo_middleware]
enable_proxy_headers_parsing = True

@ -125,3 +125,13 @@ mistral_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
mistral_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
mistral_dev_mode: "{{ kolla_dev_mode }}"
mistral_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
mistral_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
mistral_enabled_notification_topics: "{{ mistral_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -60,7 +60,12 @@ default_region = {{ openstack_region_name }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if mistral_enabled_notification_topics %}
driver = messagingv2
topics = {{ mistral_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if mistral_policy_file is defined %}
[oslo_policy]

@ -89,3 +89,12 @@ murano_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
murano_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
murano_dev_mode: "{{ kolla_dev_mode }}"
murano_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
murano_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
murano_enabled_notification_topics: "{{ murano_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -48,7 +48,12 @@ api_workers = {{ openstack_service_workers }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if murano_enabled_notification_topics %}
driver = messagingv2
topics = {{ murano_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[oslo_middleware]
enable_proxy_headers_parsing = True

@ -6,3 +6,16 @@ log_dir: "%SYSTEMDRIVE%\\OpenStack\\Log"
freerdp_msi_url: "https://cloudbase.it/downloads/FreeRDPWebConnect.msi"
hyperv_compute_msi: "HyperVNovaCompute.msi"
freerdp_webconnect_msi: "FreeRDPWebConnect.msi"
####################
# Notification
####################
nova_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool or enable_searchlight | bool or enable_neutron_infoblox_ipam_agent | bool }}"
- name: notifications_designate
enabled: "{{ enable_designate | bool }}"
- name: vitrage_notifications
enabled: "{{ enable_vitrage | bool }}"
nova_enabled_notification_topics: "{{ nova_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -18,3 +18,9 @@ enable_security_group = true
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if nova_enabled_notification_topics %}
driver = messagingv2
topics = {{ nova_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -60,3 +60,16 @@ auth_type = v3password
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if nova_enabled_notification_topics %}
driver = messagingv2
topics = {{ nova_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[notifications]
{% if not enable_searchlight | bool %}
notification_format = unversioned
{% else %}
notification_format = both
{% endif %}

@ -264,6 +264,12 @@ os_interface = internal
{% if enable_ceilometer | bool or enable_searchlight | bool or enable_designate | bool or enable_neutron_infoblox_ipam_agent | bool %}
notify_on_state_change = vm_and_task_state
{% endif %}
{% if not enable_searchlight | bool %}
notification_format = unversioned
{% else %}
notification_format = both
{% endif %}
{% if enable_osprofiler | bool %}
[profiler]

@ -94,3 +94,12 @@ sahara_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
sahara_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
sahara_dev_mode: "{{ kolla_dev_mode }}"
sahara_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
sahara_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
sahara_enabled_notification_topics: "{{ sahara_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -28,9 +28,9 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if sahara_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ sahara_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -75,3 +75,13 @@ searchlight_logging_debug: "{{ openstack_logging_debug }}"
searchlight_keystone_user: "searchlight"
openstack_searchlight_auth: "{{ openstack_auth }}"
####################
# Notifications
####################
searchlight_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
searchlight_enabled_notification_topics: "{{ searchlight_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -36,6 +36,13 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if searchlight_enabled_notification_topics %}
driver = messagingv2
topics = {{ searchlight_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if searchlight_policy_file is defined %}
[oslo_policy]

@ -91,3 +91,13 @@ senlin_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
senlin_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
senlin_dev_mode: "{{ kolla_dev_mode }}"
senlin_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
senlin_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
senlin_enabled_notification_topics: "{{ senlin_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -45,9 +45,9 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if senlin_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ senlin_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -87,3 +87,12 @@ tacker_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
tacker_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
tacker_dev_mode: "{{ kolla_dev_mode }}"
tacker_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
tacker_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
tacker_enabled_notification_topics: "{{ tacker_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -56,9 +56,9 @@ port = {{ tacker_server_port }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if tacker_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ tacker_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -111,3 +111,12 @@ trove_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
trove_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
trove_dev_mode: "{{ kolla_dev_mode }}"
trove_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
trove_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
trove_enabled_notification_topics: "{{ trove_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -12,6 +12,12 @@ os_region_name = {{ openstack_region_name }}
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if trove_enabled_notification_topics %}
driver = messagingv2
topics = {{ trove_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[database]
connection = mysql+pymysql://{{ trove_database_user }}:{{ trove_database_password }}@{{ trove_database_address }}/{{ trove_database_name }}

@ -36,13 +36,14 @@ max_retries = -1
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if trove_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ trove_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if enable_osprofiler | bool %}
[profiler]
enabled = true

@ -42,9 +42,9 @@ auth_type = password
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if enable_ceilometer | bool %}
{% if trove_enabled_notification_topics %}
driver = messagingv2
topics = notifications
topics = {{ trove_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}

@ -160,3 +160,14 @@ vitrage_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
vitrage_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
vitrage_dev_mode: "{{ kolla_dev_mode }}"
vitrage_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
vitrage_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
- name: vitrage_notifications
enabled: True
vitrage_enabled_notification_topics: "{{ vitrage_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -61,8 +61,12 @@ memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansi
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
topics = notifications,vitrage_notifications
{% if vitrage_enabled_notification_topics %}
driver = messagingv2
topics = {{ vitrage_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
[oslo_concurrency]
lock_path = /var/lib/vitrage/tmp

@ -108,3 +108,13 @@ watcher_git_repository: "{{ kolla_dev_repos_git }}/{{ project_name }}"
watcher_dev_repos_pull: "{{ kolla_dev_repos_pull }}"
watcher_dev_mode: "{{ kolla_dev_mode }}"
watcher_source_version: "{{ kolla_source_version }}"
####################
# Notifications
####################
watcher_notification_topics:
- name: notifications
enabled: "{{ enable_ceilometer | bool }}"
watcher_enabled_notification_topics: "{{ watcher_notification_topics | selectattr('enabled', 'equalto', true) | list }}"

@ -46,6 +46,12 @@ lock_path = /var/lib/watcher/tmp
[oslo_messaging_notifications]
transport_url = {{ notify_transport_url }}
{% if watcher_enabled_notification_topics %}
driver = messagingv2
topics = {{ watcher_enabled_notification_topics | map(attribute='name') | join(',') }}
{% else %}
driver = noop
{% endif %}
{% if watcher_policy_file is defined %}
[oslo_policy]

@ -0,0 +1,16 @@
---
features:
- |
Standard method to execute the configuration of "oslo_messaging" sections
upgrade:
- |
The ``enable_cadf_notifications`` variable is deprecated. CADF is the default
notification format in keystone. To enable keystone notifications, users should
now set ``keystone_default_notifications_topic_enabled`` to ``yes`` or enable
Ceilometer via ``enable_ceilometer``.
deprecations:
- |
The ``enable_cadf_notifications`` variable is deprecated. CADF is the default
notification format in keystone. To enable keystone notifications, users should
now set ``keystone_default_notifications_topic_enabled`` to ``yes`` or enable
Ceilometer via ``enable_ceilometer``.