Feat/hybrid cloud

[MiroslavRepka]

This PR implements static node pools for Claudie. It works under three assumptions:

1. Claudie can access nodes on specified endpoints
2. Static nodes can access each other
3. Claudie can ssh into them with root privileges with the specified key referenced from the secret.

The testing of the static nodes included

• replacement of cloud nodepools with static nodepools (for both, control plane and compute plane)
• addition and removal of static nodepools (for both, control plane and compute plane)
• resizing of static nodepools (for both, control plane and compute plane)
• building cluster from entirely static nodes (no cloud instances)

[cloudziu]

LGTM 👍

[MiroslavRepka]

Hey guys, could you please check the docs? Once thats done, I would like to merge this PR :).

cc @Despire @cloudziu @MarioUhrik

[katapultcloud]

I was wondering whether the renaming of frontend is compatible with this PR? I still see some residue of the frontend name sprinkled. Otherwise LGTM 👍 nice work

[MiroslavRepka]

I still see some residue of the frontend name sprinkled.

I think I would go with the approach where whichever PR gets merged first, the other will deal with the changes. :)

[cloudziu]

LGTM 👍 Great docs

[MarioUhrik]

LGTM