Introduce a 'Maintenance break'

[MichaelRoeder]

Description

As the administrator of the platform, I would like to make sure that I can restart the platform. For that, it would be best to be able to "pause" the platform in a way that it still can be used by the user but it does not execute experiments.

Solution

• [ ] The admin has to be able to pause the platform
  • via GUI? This would lead to the introduction of an admin role :+1: but would also cause a lot of effort :-1:
  • by running some docker exec <controller-container-id> <some-script> command? Would give the security that only persons with access to the swarm can execute it.
• [ ] The user needs to be informed about the maintenance (e.g., via the status page)
• [ ] The pause needs to be removable after the maintenance is done
  • by restarting the controller
  • by running a script as described above

[denkv]

• [ ] Display some explanation when there's no HOBBIT UI running, but there's at least traefik running