backend.daemons.backend

class backend.daemons.backend.CoprBackend(config_file=None, ext_opts=None)

Core process - starts/stops/initializes workers

Parameters:

• config_file – path to the backend configuration file
• ext_opts – additional options for backend

init_task_queues()

Remove old tasks from queues.

update_conf()

Update backend config from config file

spin_up_workers_by_group(group)

Handles starting/growing the number of workers

Parameters:group (dict) – Builders group

Utilized keys:

• id
• max_workers

prune_dead_workers_by_group_id(group_id)

Removes dead workers from the pool

Return list:

alive workers

Raises:

CoprBackendError when got dead worker and

option “exit_on_worker” is enabled

terminate()

Cleanup backend processes (just workers for now) And also clean all task queues as they would survive copr restart

run()

Starts backend process. Control sub process start/stop.

backend.daemons.backend.run_backend(opts)

Start main backend daemon

Parameters:opts – Munch object with command line options

Expected opts fields:

• config_file - path to the backend config file
• daemonize - boolean flag to enable daemon mode
• pidfile - path to the backend pidfile
• daemon_user
• daemon_group