[Feature]: Better logging on connection error during peering.

[giuliafalaschi]

Describe the problem you are having (if any)

When peering fails liqo doesn't give too much information on what has failed, this makes debugging on a network level difficult, because we don't know what address and port are unreachable.

Describe the solution you would like

When peering fails we would like to have more informations on the failure (e.g. the IP protocol and Port of the failed connection).

Describe the user value of this feature

This feature would help the network team to setup the right firewalls and connection rules to allow peering beetween the selected clusters.

Describe your proposed solution

When a peering connection fails, a log like this is printed:
Connection failed: Provider on cluster <name> unreachable on UDP://<IP address>:<Port>

Do you volunteer to implement this feature?

• I want to implement this feature

Code of Conduct

• I agree to follow this project's Code of Conduct