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path: root/docker/services/nova-libvirt.yaml
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heat_template_version: pike

description: >
  OpenStack Libvirt Service

parameters:
  DockerNovaLibvirtImage:
    description: image
    type: string
  # we configure libvirt via the nova-compute container due to coupling
  # in the puppet modules
  DockerNovaLibvirtConfigImage:
    description: The container image to use for the nova_libvirt config_volume
    type: string
  ServiceData:
    default: {}
    description: Dictionary packing service data
    type: json
  ServiceNetMap:
    default: {}
    description: Mapping of service_name -> network name. Typically set
                 via parameter_defaults in the resource registry.  This
                 mapping overrides those in ServiceNetMapDefaults.
    type: json
  DefaultPasswords:
    default: {}
    type: json
  RoleName:
    default: ''
    description: Role name on which the service is applied
    type: string
  RoleParameters:
    default: {}
    description: Parameters specific to the role
    type: json
  EndpointMap:
    default: {}
    description: Mapping of service endpoint -> protocol. Typically set
                 via parameter_defaults in the resource registry.
    type: json
  EnableInternalTLS:
    type: boolean
    default: false
  UseTLSTransportForLiveMigration:
    type: boolean
    default: true
    description: If set to true and if EnableInternalTLS is enabled, it will
                 set the libvirt URI's transport to tls and configure the
                 relevant keys for libvirt.
  DockerNovaMigrationSshdPort:
    default: 2022
    description: Port that dockerized nova migration target sshd service
                 binds to.
    type: number
  NovaEnableRbdBackend:
    default: false
    description: Whether to enable or not the Rbd backend for Nova
    type: boolean
  CinderEnableRbdBackend:
    default: false
    description: Whether to enable or not the Rbd backend for Cinder
    type: boolean
  CephClientKey:
    description: The Ceph client key. Can be created with ceph-authtool --gen-print-key.
    type: string
    hidden: true
  CephClusterFSID:
    type: string
    description: The Ceph cluster FSID. Must be a UUID.

conditions:

  use_tls_for_live_migration:
    and:
    - equals:
      - {get_param: EnableInternalTLS}
      - true
    - equals:
      - {get_param: UseTLSTransportForLiveMigration}
      - true

  need_libvirt_secret:
    or:
    - equals:
      - {get_param: NovaEnableRbdBackend}
      - true
    - equals:
      - {get_param: CinderEnableRbdBackend}
      - true

resources:

  ContainersCommon:
    type: ./containers-common.yaml

  MySQLClient:
    type: ../../puppet/services/database/mysql-client.yaml

  NovaLibvirtBase:
    type: ../../puppet/services/nova-libvirt.yaml
    properties:
      EndpointMap: {get_param: EndpointMap}
      ServiceData: {get_param: ServiceData}
      ServiceNetMap: {get_param: ServiceNetMap}
      DefaultPasswords: {get_param: DefaultPasswords}
      RoleName: {get_param: RoleName}
      RoleParameters: {get_param: RoleParameters}
      MigrationSshPort: {get_param: DockerNovaMigrationSshdPort}

outputs:
  role_data:
    description: Role data for the Libvirt service.
    value:
      service_name: {get_attr: [NovaLibvirtBase, role_data, service_name]}
      config_settings:
        map_merge:
          - get_attr: [NovaLibvirtBase, role_data, config_settings]
          - tripleo::profile::base::certmonger_user::libvirt_postsave_cmd: "true" # TODO: restart the libvirt container here

      step_config: &step_config
        list_join:
          - "\n"
          - - {get_attr: [NovaLibvirtBase, role_data, step_config]}
            - {get_attr: [MySQLClient, role_data, step_config]}
      puppet_config:
        config_volume: nova_libvirt
        puppet_tags: libvirtd_config,nova_config,file
        step_config: *step_config
        config_image: {get_param: DockerNovaLibvirtConfigImage}
      kolla_config:
        /var/lib/kolla/config_files/nova_libvirt.json:
          command:
            if:
              - use_tls_for_live_migration
              - /usr/sbin/libvirtd --listen --config /etc/libvirt/libvirtd.conf
              - /usr/sbin/libvirtd --config /etc/libvirt/libvirtd.conf
          config_files:
            - source: "/var/lib/kolla/config_files/src/*"
              dest: "/"
              merge: true
              preserve_properties: true
            - source: "/var/lib/kolla/config_files/src-ceph/"
              dest: "/etc/ceph/"
              merge: true
              preserve_properties: true
        /var/lib/kolla/config_files/nova_virtlogd.json:
          command: /usr/sbin/virtlogd --config /etc/libvirt/virtlogd.conf
          config_files:
            - source: "/var/lib/kolla/config_files/src/*"
              dest: "/"
              merge: true
              preserve_properties: true
          permissions:
            - path: /var/log/nova
              owner: nova:nova
              recurse: true
      docker_config:
        step_3:
          nova_virtlogd:
            start_order: 0
            image: {get_param: DockerNovaLibvirtImage}
            net: host
            pid: host
            privileged: true
            restart: always
            volumes:
              list_concat:
                - {get_attr: [ContainersCommon, volumes]}
                -
                  - /var/lib/kolla/config_files/nova_virtlogd.json:/var/lib/kolla/config_files/config.json:ro
                  - /var/lib/config-data/puppet-generated/nova_libvirt/:/var/lib/kolla/config_files/src:ro
                  - /lib/modules:/lib/modules:ro
                  - /dev:/dev
                  - /run:/run
                  - /sys/fs/cgroup:/sys/fs/cgroup
                  - /var/lib/nova:/var/lib/nova
                  - /var/run/libvirt:/var/run/libvirt
                  - /var/lib/libvirt:/var/lib/libvirt
                  - /etc/libvirt/qemu:/etc/libvirt/qemu:ro
                  - /var/log/libvirt/qemu:/var/log/libvirt/qemu
            environment:
              - KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
          nova_libvirt:
            start_order: 1
            image: {get_param: DockerNovaLibvirtImage}
            net: host
            pid: host
            privileged: true
            restart: always
            volumes:
              list_concat:
                - {get_attr: [ContainersCommon, volumes]}
                -
                  - /var/lib/kolla/config_files/nova_libvirt.json:/var/lib/kolla/config_files/config.json:ro
                  - /var/lib/config-data/puppet-generated/nova_libvirt/:/var/lib/kolla/config_files/src:ro
                  - /etc/ceph:/var/lib/kolla/config_files/src-ceph:ro
                  - /lib/modules:/lib/modules:ro
                  - /dev:/dev
                  - /run:/run
                  - /sys/fs/cgroup:/sys/fs/cgroup
                  - /var/lib/nova:/var/lib/nova
                  - /etc/libvirt:/etc/libvirt
                  - /var/run/libvirt:/var/run/libvirt
                  - /var/lib/libvirt:/var/lib/libvirt
                  - /var/log/libvirt/qemu:/var/log/libvirt/qemu:ro
                  - /var/log/containers/nova:/var/log/nova
                  - /var/lib/vhost_sockets:/var/lib/vhost_sockets
                -
                  if:
                    - use_tls_for_live_migration
                    -
                      - /etc/ipa/ca.crt:/etc/pki/CA/cacert.pem:ro
                      - /etc/pki/libvirt/servercert.pem:/etc/pki/libvirt/servercert.pem:ro
                      - /etc/pki/libvirt/private/serverkey.pem:/etc/pki/libvirt/private/serverkey.pem:ro
                      - /etc/pki/libvirt/clientcert.pem:/etc/pki/libvirt/clientcert.pem:ro
                      - /etc/pki/libvirt/private/clientkey.pem:/etc/pki/libvirt/private/clientkey.pem:ro
                    - null
            environment:
              - KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
        step_4:
          if:
            - need_libvirt_secret
            - nova_libvirt_init_secret:
                detach: false
                image: {get_param: DockerNovaLibvirtImage}
                privileged: false
                user: root
                volumes:
                  list_concat:
                    - {get_attr: [ContainersCommon, volumes]}
                    -
                      - /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova:/etc/nova:ro
                      - /etc/libvirt:/etc/libvirt
                      - /var/run/libvirt:/var/run/libvirt
                      - /var/lib/libvirt:/var/lib/libvirt
                command:
                  - /bin/bash
                  - -c
                  - str_replace:
                      template: /usr/bin/virsh secret-define --file /etc/nova/secret.xml && /usr/bin/virsh secret-set-value --secret 'SECRET_UUID' --base64 'SECRET_KEY'
                      params:
                        SECRET_UUID: {get_param: CephClusterFSID}
                        SECRET_KEY: {get_param: CephClientKey}
            - {}
      host_prep_tasks:
        - name: create libvirt persistent data directories
          file:
            path: "{{ item }}"
            state: directory
          with_items:
            - /etc/libvirt
            - /etc/libvirt/secrets
            - /etc/libvirt/qemu
            - /var/lib/libvirt
            - /var/log/containers/nova
        # qemu user on host will be cretaed by libvirt package install, ensure
        # the qemu user created with same uid/gid as like libvirt package.
        # These specific values are required since ovs is running on host.
        # Once ovs with DPDK is containerized, we could modify this uid/gid
        # to match with kolla config values.
        - name: ensure qemu group is present on the host
          group:
            name: qemu
            gid: 107
            state: present
        - name: ensure qemu user is present on the host
          user:
            name: qemu
            uid: 107
            group: qemu
            state: present
            shell: /sbin/nologin
            comment: qemu user
        - name: create directory for vhost-user sockets with qemu ownership
          file:
            path: /var/lib/vhost_sockets
            state: directory
            owner: qemu
            group: qemu
        - name: ensure ceph configurations exist
          file:
            path: /etc/ceph
            state: directory
        - name: check if libvirt is installed
          command: /usr/bin/rpm -q libvirt-daemon
          failed_when: false
          register: libvirt_installed
        - name: make sure libvirt services are disabled
          service:
            name: "{{ item }}"
            state: stopped
            enabled: no
          with_items:
            - libvirtd.service
            - virtlogd.socket
          when: libvirt_installed.rc == 0
      metadata_settings:
        get_attr: [NovaLibvirtBase, role_data, metadata_settings]
      upgrade_tasks:
        - name: Stop and disable libvirtd service
          tags: step2
          service: name=libvirtd state=stopped enabled=no