kolla-ansible/ansible/roles/nova-cell/handlers/main.yml

---
- name: Restart nova-conductor container
  vars:
    service_name: "nova-conductor"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"
    - kolla_action != "upgrade" or not nova_safety_upgrade | bool

- name: Restart nova-novncproxy container
  vars:
    service_name: "nova-novncproxy"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"
    - kolla_action != "upgrade" or not nova_safety_upgrade | bool

- name: Restart nova-spicehtml5proxy container
  vars:
    service_name: "nova-spicehtml5proxy"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"
    - kolla_action != "upgrade" or not nova_safety_upgrade | bool

- name: Restart nova-serialproxy container
  vars:
    service_name: "nova-serialproxy"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"
    - kolla_action != "upgrade" or not nova_safety_upgrade | bool

- name: Restart nova-ssh container
  vars:
    service_name: "nova-ssh"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    pid_mode: "{{ service.pid_mode | default('') }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"

- name: Restart nova-libvirt container
  vars:
    service_name: "nova-libvirt"
    service: "{{ nova_cell_services[service_name] }}"
    nova_libvirt_notify: "{{ ['Checking libvirt container is ready', 'Create libvirt SASL user'] if libvirt_enable_sasl | bool else [] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    pid_mode: "{{ service.pid_mode | default('') }}"
    cgroupns_mode: "{{ service.cgroupns_mode | default(omit) }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  register: restart_nova_libvirt
  # NOTE(Jeffrey4l): retry 5 to remove nova_libvirt container because when
  # guests running, nova_libvirt will raise error even though it is removed.
  retries: 5
  until: restart_nova_libvirt is success
  when:
    - kolla_action != "config"
  notify: "{{ nova_libvirt_notify }}"

  # need to wait kolla_set_configs script to overwrite sasl config file
- name: Checking libvirt container is ready
  become: true
  shell:
    cmd: >
      set -o pipefail &&
      {{ kolla_container_engine }} exec -i nova_libvirt ls /run/libvirtd.pid      
    executable: /bin/bash
  register: libvirt_container_ready
  until: libvirt_container_ready is succeeded
  retries: 10

# The SASL user needs to exist in order for nova-compute to start successfully.
- name: Create libvirt SASL user
  become: true
  shell:
    cmd: >
      set -o pipefail &&
      echo {{ libvirt_sasl_password }} |
      {{ kolla_container_engine }} exec -i nova_libvirt
      saslpasswd2 -c -p -a libvirt {{ libvirt_sasl_authname }}      
    executable: /bin/bash
  changed_when: true
  no_log: true

- name: Reload libvirtd
  become: true
  service:
    name: libvirtd
    state: reloaded
  when:
    - kolla_action != "config"

- name: Restart nova-compute container
  vars:
    service_name: "nova-compute"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    environment: "{{ service.environment }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    ipc_mode: "{{ service.ipc_mode }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"

- name: Restart nova-compute-ironic container
  vars:
    service_name: "nova-compute-ironic"
    service: "{{ nova_cell_services[service_name] }}"
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "{{ service.container_name }}"
    image: "{{ service.image }}"
    privileged: "{{ service.privileged | default(False) }}"
    volumes: "{{ service.volumes | reject('equalto', '') | list }}"
    dimensions: "{{ service.dimensions }}"
    healthcheck: "{{ service.healthcheck | default(omit) }}"
  when:
    - kolla_action != "config"

# nova-compute-fake is special. It will start multi numbers of container
# so put all variables here rather than defaults/main.yml file
- name: Restart nova-compute-fake containers
  become: true
  kolla_container:
    action: "recreate_or_restart_container"
    common_options: "{{ docker_common_options }}"
    name: "nova_compute_fake_{{ item }}"
    image: "{{ nova_compute_image_full }}"
    privileged: True
    volumes:
      - "{{ node_config_directory }}/nova-compute-fake-{{ item }}/:{{ container_config_directory }}/:ro"
      - "/etc/localtime:/etc/localtime:ro"
      - "/lib/modules:/lib/modules:ro"
      - "/run:/run{{ ':shared' if kolla_container_engine == 'docker' else '' }}"
      - "/run/netns:/run/netns:shared"
      - "/run/lock/nova:/run/lock/nova:shared"
      - "/run/libvirt:/run/libvirt:shared"
      - "/run/nova:/run/nova:shared"
      - "/run/openvswitch:/run/openvswitch:shared"
      - "kolla_logs:/var/log/kolla/"
  with_sequence: start=1 end={{ num_nova_fake_per_node }}
  when:
    - kolla_action != "config"

# NOTE(mgoddard): After upgrading nova-compute, services will have an RPC
# version cap in place.  We need to restart all services that communicate with
# nova-compute in order to allow them to use the latest RPC version. Ideally,
# there would be a way to check whether all nova services are using the latest
# version, but currently there is not. Instead, wait a short time for all nova
# compute services to update the version of their service in the database.
# This seems to take around 10 seconds, but the default is 30 to allow room
# for slowness.

- name: Wait for nova-compute services to update service versions
  pause:
    seconds: "{{ nova_compute_startup_delay }}"
  run_once: true
  when:
    - kolla_action == 'upgrade'
  listen:
    - Restart nova-compute container
    - Restart nova-compute-ironic container
    - Restart nova-compute-fake containers