Client IPAM negotiation not working properly

[Schille]

What happened?

I wanted to connect with a Gefyra client to a cluster. After some short time, the connection process was aborted with the message Error: could not connect. Not much more information either.

What did you expect to happen?

Gefyra to connect successfully.

Please provide the output of gefyra check.

How can we reproduce it (as minimally and precisely as possible)?

Connect a Gefyra client from a fresh environment (for example with Docker Desktop) with a cluster that already has some other clients connected (the more the better).

What Kubernetes setup are you working with?

OS version

Anything else we need to know?

The current implementation for the IPAM negotiation between the client and the operator does not properly work. In fact, the client always tries the same IPAM repeatedly until this stops with an error.

Either, the client queries all taken IPAMs from other clients (via GefyraClient.providerParameter) or tries different IPAMs during the connection sequence.
I'd opt for the first solution, as this will lead to a deterministic IPAM negotiation.