I am trying to deploy Keycloak onto Kubernetes Engine in HA (cluster) mode. I am doing the deployment with an ingress service with TLS setting to be able to access externally.

The TLS setting was pretty straightforward, so got it done.

I placed the manifest files here https://github.com/vsomasvr/keycloak-gke/tree/master/keycloak

The issue is that the keycloak does not form the cluster, hence keycloak is not functioning, the authentication itself fails. This manifest works well for a single replica (which is not a cluster, so not helpful and not interested in sticky-session related config).

I think this is the crucial problem to be solved for the keycloak production installtion.

Any help is greatly appreciated.