doc:
  short_help: Systemd service unit for Celery workers.

args:
  user:
    doc:
      short_help: The user to run celery.
    type: string
    required: false
    default: celery

  env_files:
    doc:
      short_help: Additional systemd environment configuration files.
      help: |
        Additional systemd environment files, usefule for app-specific configuration.

        Format is:

            CONFIG_KEY_1=config_value_1
            CONFIG_KEY_2=config_value_2

    type: list
    schema:
      type: string
    required: false
    empty: true
    default: []

frecklets:
- systemd-service-unit:
    name: celery
    enabled: true
    started: true
    unit_description: Celery worker daemons.
    unit_after:
    - network.target
    install_wanted_by:
    - multi-user.target
    service_type: forking
    service_environment_file: '{{:: env_files ::}}'
    service_environment:
      CELERYD_NODES: w1
      CELERY_BIN: '{{:: celery_bin ::}}'
      CELERY_APP: '{{:: celery_entrypoint ::}}'
      CELERYD_MULTI: multi
      CELERYD_OPTS: --time-limit=300 --concurrency=8
      CELERYD_PID_FILE: /run/celery/%n.pid
      CELERYD_LOG_FILE: /var/log/celery/%n%I.log
      CELERYD_LOG_LEVEL: INFO
      CELERYBEAT_PID_FILE: /run/celery/beat.pid
      CELERYBEAT_LOG_FILE: /var/log/celery/beat.log
    service_exec_start: /bin/sh -c '${CELERY_BIN} ${CELERYD_MULTI} start ${CELERYD_NODES} -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
    service_exec_stop: /bin/sh -c '${CELERY_BIN} ${CELERYD_MULTI} stopwait ${CELERYD_NODES} --pidfile=${CELERYD_PID_FILE}'
    service_exec_reload: /bin/sh -c '${CELERY_BIN} ${CELERYD_MULTI} restart ${CELERYD_NODES} -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
    service_exec_start_pre:
    - +/bin/mkdir /run/celery
    - '+/bin/chown -R {{:: user ::}} /run/celery'
    - +/bin/mkdir -p /var/log/celery
    - '+/bin/chown -R {{:: user ::}} /var/log/celery'
    service_exec_stop_post:
    - +/bin/rm -rf /run/celery
- init-service-restarted:     # can't make it work otherwise
    name: celery
meta: {}