Beacon does not behave properly when scaled.

[dstathis]

Bug Description

When Beacon is scaled beyond 1, It goes in to blocked state. It should instead continue to work and it should scale custom deployments accordingly.

To Reproduce

juju scale-application beacon 3

Environment

Relevant log output

Unit                  Workload  Agent  Address     Ports  Message
istio-beacon-k8s/0*   active    idle   10.1.20.46         
istio-beacon-k8s/1    blocked   idle   10.1.20.3          Waypoint can only be provided on the leader unit.

Additional context

No response

Note

• Make sure Correctly handle unit removal when n_units>1 #21 is also fixed with this.