<commit_before>---
# Copyright 2014, Rackspace US, Inc.
#
# 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.

- name: Prepare MQ/DB services
  hosts: glance_all
  gather_facts: "{{ gather_facts | default(True) }}"
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:

    - name: Configure rabbitmq vhost/user
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ glance_rabbitmq_userid }}"
        password: "{{ <PASSWORD> }}"
        vhost: "{{ glance_rabbitmq_vhost }}"
        _rabbitmq_host_group: "{{ glance_rabbitmq_host_group }}"
      when:
        - groups[glance_rabbitmq_host_group] | length > 0
      run_once: yes

    - name: Configure rabbitmq vhost/user (telemetry)
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ glance_rabbitmq_telemetry_userid }}"
        password: "{{ <PASSWORD> }}"
        vhost: "{{ glance_rabbitmq_telemetry_vhost }}"
        _rabbitmq_host_group: "{{ glance_rabbitmq_telemetry_host_group }}"
      when:
        - glance_ceilometer_enabled | bool
        - groups[glance_rabbitmq_telemetry_host_group] is defined
        - groups[glance_rabbitmq_telemetry_host_group] | length > 0
        - groups[glance_rabbitmq_telemetry_host_group] != groups[glance_rabbitmq_host_group]
      run_once: yes

    - name: Configure MySQL user
      include: common-tasks/mysql-db-user.yml
      vars:
        user_name: "{{ glance_galera_user }}"
        password: "{{ <PASSWORD> }}"
        login_host: "{{ glance_galera_address }}"
        db_name: "{{ glance_galera_database }}"
      run_once: yes



- name: Install glance API services
  include: common-playbooks/glance.yml
  vars:
    glance_hosts: "glance_api"
    glance_serial: "{{ glance_api_serial | default(['1', '100%']) }}"



- name: Install glance registry services
  include: common-playbooks/glance.yml
  vars:
    glance_hosts: "glance_registry:!glance_api"
    glance_serial: "{{ glance_registry_serial | default(['1', '100%']) }}"



# These facts are set against the deployment host to ensure that
# they are fast to access. This is done in preference to setting
# them against each target as the hostvars extraction will take
# a long time if executed against a large inventory.
- name: Refresh local facts after all software changes are made
  hosts: glance_all
  max_fail_percentage: 20
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:
    - name: refresh local facts
      setup:
        filter: ansible_local
        gather_subset: "!all"

    # This variable contains the values of the local fact set for the glance
    # venv tag for all hosts in the 'glance_all' host group.
    - name: Gather software version list
      set_fact:
        glance_all_software_versions: "{{ (groups['glance_all'] | map('extract', hostvars, ['ansible_local', 'openstack_ansible', 'glance', 'venv_tag'])) | list }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean value which is True when
    # glance_all_software_versions contains a list of defined
    # values. If they are not defined, it means that not all
    # hosts have their software deployed yet.
    - name: Set software deployed fact
      set_fact:
        glance_all_software_deployed: "{{ (glance_all_software_versions | select('defined')) | list == glance_all_software_versions }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean when all the values in
    # glance_all_software_versions are the same and the software
    # has been deployed to all hosts in the group.
    - name: Set software updated fact
      set_fact:
        glance_all_software_updated: "{{ ((glance_all_software_versions | unique) | length == 1) and (glance_all_software_deployed | bool) }}"
      delegate_to: localhost
      run_once: yes


- name: Restart glance API to ensure new RPC object version is used
  hosts: glance_api
  gather_facts: no
  serial: "{{ glance_api_serial | default(['1','100%']) }}"
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:
    # In order to ensure that the service restart does not
    # cause an unexpected outage, we drain the load balancer
    # back end for this container.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: glance_api-back
        haproxy_state: disabled
      when:
        - "glance_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['glance']['need_service_restart'] | bool"
        - "groups['glance_api'] | length > 1"

    - name: Execute glance service restart
      include: common-tasks/restart-service.yml
      vars:
        service_name: "glance-api"
        service_action: "restarted"
      when:
        - "glance_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['glance']['need_service_restart'] | bool"

    # Now that service restart is done, we can set
    # the load balancer back end for this container
    # to available again.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: glance_api-back
        haproxy_state: enabled
      when: "groups['glance_api'] | length > 1"<commit_msg>Restart glance services only when necessary<commit_after>---
# Copyright 2014, Rackspace US, Inc.
#
# 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.

- name: Prepare MQ/DB services
  hosts: glance_all
  gather_facts: "{{ gather_facts | default(True) }}"
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:

    - name: Configure rabbitmq vhost/user
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ glance_rabbitmq_userid }}"
        password: "{{ <PASSWORD> }}"
        vhost: "{{ glance_rabbitmq_vhost }}"
        _rabbitmq_host_group: "{{ glance_rabbitmq_host_group }}"
      when:
        - groups[glance_rabbitmq_host_group] | length > 0
      run_once: yes

    - name: Configure rabbitmq vhost/user (telemetry)
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ glance_rabbitmq_telemetry_userid }}"
        password: "{{ <PASSWORD> }}"
        vhost: "{{ glance_rabbitmq_telemetry_vhost }}"
        _rabbitmq_host_group: "{{ glance_rabbitmq_telemetry_host_group }}"
      when:
        - glance_ceilometer_enabled | bool
        - groups[glance_rabbitmq_telemetry_host_group] is defined
        - groups[glance_rabbitmq_telemetry_host_group] | length > 0
        - groups[glance_rabbitmq_telemetry_host_group] != groups[glance_rabbitmq_host_group]
      run_once: yes

    - name: Configure MySQL user
      include: common-tasks/mysql-db-user.yml
      vars:
        user_name: "{{ glance_galera_user }}"
        password: "{{ <PASSWORD> }}"
        login_host: "{{ glance_galera_address }}"
        db_name: "{{ glance_galera_database }}"
      run_once: yes



- name: Install glance API services
  include: common-playbooks/glance.yml
  vars:
    glance_hosts: "glance_api"
    glance_serial: "{{ glance_api_serial | default(['1', '100%']) }}"



- name: Install glance registry services
  include: common-playbooks/glance.yml
  vars:
    glance_hosts: "glance_registry:!glance_api"
    glance_serial: "{{ glance_registry_serial | default(['1', '100%']) }}"



# These facts are set against the deployment host to ensure that
# they are fast to access. This is done in preference to setting
# them against each target as the hostvars extraction will take
# a long time if executed against a large inventory.
- name: Refresh local facts after all software changes are made
  hosts: glance_all
  max_fail_percentage: 20
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:
    - name: refresh local facts
      setup:
        filter: ansible_local
        gather_subset: "!all"

    # This variable contains the values of the local fact set for the glance
    # venv tag for all hosts in the 'glance_all' host group.
    - name: Gather software version list
      set_fact:
        glance_all_software_versions: "{{ (groups['glance_all'] | map('extract', hostvars, ['ansible_local', 'openstack_ansible', 'glance', 'venv_tag'])) | list }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean value which is True when
    # glance_all_software_versions contains a list of defined
    # values. If they are not defined, it means that not all
    # hosts have their software deployed yet.
    - name: Set software deployed fact
      set_fact:
        glance_all_software_deployed: "{{ (glance_all_software_versions | select('defined')) | list == glance_all_software_versions }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean when all the values in
    # glance_all_software_versions are the same and the software
    # has been deployed to all hosts in the group.
    - name: Set software updated fact
      set_fact:
        glance_all_software_updated: "{{ ((glance_all_software_versions | unique) | length == 1) and (glance_all_software_deployed | bool) }}"
      delegate_to: localhost
      run_once: yes


- name: Restart glance API to ensure new RPC object version is used
  hosts: glance_api
  gather_facts: no
  serial: "{{ glance_api_serial | default(['1','100%']) }}"
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - glance
  tasks:
    # In order to ensure that the service restart does not
    # cause an unexpected outage, we drain the load balancer
    # back end for this container.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: glance_api-back
        haproxy_state: disabled
      when:
        - "glance_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['glance']['need_service_restart'] | bool"
        - "groups['glance_api'] | length > 1"

    - name: Execute glance service restart
      include: common-tasks/restart-service.yml
      vars:
        service_name: "glance-api"
        service_action: "restarted"
        service_fact: "glance"
      when:
        - "glance_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['glance']['need_service_restart'] | bool"

    # Now that service restart is done, we can set
    # the load balancer back end for this container
    # to available again.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: glance_api-back
        haproxy_state: enabled
      when: "groups['glance_api'] | length > 1"
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