Managed upgrade script

[ayoub-eddafali]

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Platform Administrator notice

What does this PR do / why do we need this PR?

Managed upgrade script

• Fixes #268

Additional information to reviewers

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Checklist

• [x] Proper commit message prefix on all commits
• Change checks:
  • [] The change is transparent
  • [ ] The change is disruptive
  • [ ] The change requires no migration steps
  • [ ] The change requires migration steps
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  • [ ] The metrics are still exposed and present in Grafana after the change
  • [ ] The metrics names didn't change (Grafana dashboards and Prometheus alerts are not affected)
  • [ ] The metrics names did change (Grafana dashboards and Prometheus alerts were fixed)
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[aarnq]

Would it be possible to use ansible-inventory -i inventory.ini --list instead to get all required information from the main inventory? It would be able to handle generated inventories as we have with OpenStack environments, and also make it easier to parse and manage as it outputs in JSON so you can easily list groups and hosts.

[aarnq]

Nit: Do try to fix the pre-commit issues, and usually with the code style we use function names should be snake_case.

[aarnq]

Would it be possible to use ansible-inventory -i inventory.ini --list instead to get all required information from the main inventory? It would be able to handle generated inventories as we have with OpenStack environments, and also make it easier to parse and manage as it outputs in JSON so you can easily list groups and hosts.

I still think this should be done within this PR to make it work with generated inventories.

[ayoubeddafali]

Added some fixes, and tested it again on an empty exoscale kubespray cluster, and seems to be working. Would be grateful if someone could test this on his dev cluster, or a cluster with AMSes