Description of problem:
Installing the keycloak operator helm) and then the keycloak instance fails.

Version-Release number of selected component (if applicable):
13.0.0

oc version
Client Version: 4.8.0-202105072225.p0-4c2094c
Server Version: 4.8.0-0.nightly-2021-05-11-082318
Kubernetes Version: v1.21.0-rc.0+86f0080

How reproducible:
Always

Steps to Reproduce:
1. Install Keycloak operator
2. Install Keycloak instance within the operator

Actual results:

oc get event | egrep -v 'Normal'
LAST SEEN TYPE REASON OBJECT MESSAGE
40m Warning ProcessingError keycloak/example-keycloak Route.route.openshift.io "keycloak-metrics-rewrite" is invalid: spec.host: Forbidden: you do not have permission to set the host field of the route
41m Warning Unhealthy pod/keycloak-0 Liveness probe failed:
41m Warning Unhealthy pod/keycloak-0 Readiness probe failed:

Expected results:
To have the example just work

Additional info: