openstack-ansible/playbooks/common-playbooks/cinder.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.

- name: Gather cinder facts
  hosts: "{{ cinder_hosts }}"
  gather_facts: false
  tags:
    - always
  tasks:
    - name: Gather minimal facts for cinder
      setup:
        gather_subset:
          - "!all"
          - min
      when: osa_gather_facts | default(True)

    - name: Gather additional facts for cinder
      setup:
        gather_subset: "{{ cinder_gather_subset | default('processor_count') }}"
        filter: "{{ cinder_gather_filter | default('ansible_processor*') }}"
      when: osa_gather_facts | default(True)

- name: Install cinder services
  hosts: "{{ cinder_hosts }}"
  serial: "{{ cinder_serial }}"
  gather_facts: false
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  vars_files:
    - "../defaults/{{ install_method }}_install.yml"
  tags:
    - cinder
  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: cinder_api-back
        haproxy_state: disabled
      when:
        - "'cinder_api' in group_names"
        - "groups['cinder_api'] | length > 1"

    - name: Determine storage bridge IP address
      include_tasks: ../common-tasks/dynamic-address-fact.yml
      vars:
        network_address: "storage_address"
      tags:
        - always

    - name: Configure container (cinder-volume) when lvm is in-use
      include_tasks: "../common-tasks/os-{{ container_tech | default('lxc') }}-container-setup.yml"
      vars:
        extra_container_config:
          - "lxc.autodev=0"
          - "lxc.cgroup.devices.allow=a *:* rmw"
          - "lxc.mount.entry=udev dev devtmpfs defaults 0 0"
        extra_container_config_no_restart:
          - "lxc.start.order=39"
      when:
        - "not is_metal"
        - "'cinder_volume' in group_names"
        - "cinder_backend_lvm_inuse | bool"

    - name: Configure container (other services)
      include_tasks: "../common-tasks/os-{{ container_tech | default('lxc') }}-container-setup.yml"
      when:
        - "not is_metal"
        - "not ( 'cinder_volume' in group_names and cinder_backend_lvm_inuse | bool )"

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

    - name: Add volume group block device to cinder
      shell: |
        set -o pipefail
        {% if item.value.volume_group is defined %}
        if [ "$(pvdisplay | grep -B1 {{ item.value.volume_group }} | awk '/PV/ {print $3}')" ];then
          for device in `pvdisplay | grep -B1 {{ item.value.volume_group }} | awk '/PV/ {print $3}'`
            do lxc-device -n {{ container_name }} add $device
          done
        fi
        {% else %}
        echo "{{ item.key }} volume_group not defined"
        {% endif %}        
      args:
        executable: /bin/bash
      with_dict: "{{ cinder_backends | default({}) }}"
      when:
        - container_tech | default('lxc') == 'lxc'
        - physical_host != container_name
        - cinder_backend_lvm_inuse | bool
      delegate_to: "{{ physical_host }}"

    - name: udevadm trigger
      command: udevadm trigger
      delegate_to: "{{ physical_host }}"
      when: cinder_backend_lvm_inuse | bool

  roles:
    - role: "os_cinder"
      cinder_storage_address: "{{ storage_address }}"

    - role: "openstack.osa.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: cinder_api-back
        haproxy_state: enabled
      when:
        - "'cinder_api' in group_names"
        - "groups['cinder_api'] | length > 1"