openstack-ansible/playbooks/os-keystone-install.yml

---
# 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.


# The openstack_openrc role gets executed on a designated service
# host which will handle all service/user/domain/project/role
# management for the roles. It is executed here as this is the
# first role which will use it and the implementation of the
# clouds.yaml file is useless until keystone is in place.
- name: Implement openrc/clouds.yaml on the designated service host
  hosts: "{{ openstack_service_setup_host | default('localhost') }}"
  gather_facts: "{{ osa_gather_facts | default(True) }}"
  become: yes
  tags:
    - openrc
  roles:
    - role: "openstack_openrc"

- name: Gather keystone facts
  hosts: keystone_all
  gather_facts: "{{ osa_gather_facts | default(True) }}"
  tags:
    - always

- name: Installation and setup of Keystone
  hosts: keystone_all
  serial: "{{ keystone_serial | default(['1', '100%']) }}"
  gather_facts: false
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  vars_files:
    - "defaults/repo_packages/openstack_services.yml"
    - "defaults/{{ install_method }}_install.yml"
  tags:
    - keystone
  pre_tasks:

    # In order to ensure that any container, software or
    # config file changes which causes a container/service
    # restart do not cause an unexpected outage, we drain
    # the load balancer back end for this container.
    - include_tasks: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: "keystone_service-back"
        haproxy_state: disabled
      when: "groups['keystone_all'] | length > 1"

    - name: Configure container
      include_tasks: "common-tasks/os-{{ container_tech | default('lxc') }}-container-setup.yml"
      vars:
        extra_container_config_no_restart:
          - "lxc.start.order=19"
      when: not is_metal

    - include_tasks: common-tasks/unbound-clients.yml
      when:
        - hostvars['localhost']['resolvconf_enabled'] | bool

  roles:
    - role: "os_keystone"
    - role: "system_crontab_coordination"
      tags:
        - crontab

  post_tasks:
    # Now that container changes are done, we can set
    # the load balancer back end for this container
    # to available again.
    - include_tasks: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: "keystone_service-back"
        haproxy_state: enabled
      when: "groups['keystone_all'] | length > 1"

# 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: Finalise data migrations if required
  hosts: keystone_all
  gather_facts: no
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  vars_files:
    - "defaults/{{ install_method }}_install.yml"
  tags:
    - keystone
  tasks:
    - name: refresh local facts
      setup:
        filter: ansible_local
        gather_subset: "!all"

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

    # This variable outputs a boolean value which is True when
    # keystone_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:
        keystone_all_software_deployed: "{{ (keystone_all_software_versions | select('defined')) | list == keystone_all_software_versions }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean when all the values in
    # keystone_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:
        keystone_all_software_updated: "{{ ((keystone_all_software_versions | unique) | length == 1) and (keystone_all_software_deployed | bool) }}"
      delegate_to: localhost
      run_once: yes

    - name: Perform a Keystone DB sync contract
      command: "{{ keystone_bin }}/keystone-manage db_sync --contract"
      become: yes
      become_user: "{{ keystone_system_user_name }}"
      when:
        - "keystone_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['keystone']['need_db_contract'] | bool"
      register: dbsync_contract
      run_once: yes

    - name: Disable the need for any further db sync
      ini_file:
        dest: "/etc/ansible/facts.d/openstack_ansible.fact"
        section: keystone
        option: "need_db_contract"
        value: "False"
      when:
        - "dbsync_contract is succeeded"