action #80908

Updated by okurz 10 months ago

## Motivation

We want to upgrade more often but not disrupt openQA jobs on package upgrades as well as re-read configuration whenever a job finishes

## Acceptance criteria
* **AC1:** openQA worker packages can be upgraded continously without interrupting currently running openQA jobs
* **AC2:** openQA workers read updated configuration, e.g. WORKER_CLASS, whenever they are ready to pick up new jobs

## Further details

One could try what apache does with `apache2ctl graceful` or `systemctl reload apache2`, e.g. see