By default, the readiness probe is:
 87     readinessProbe:
 88       failureThreshold: 3
 89       httpGet:
 90         path: /ping
 91         port: 8123
 92         scheme: HTTP
 
This probe is not working when TLS is enabled for Clickhouse. Hence the Container is Running but not Ready.
We should update the readiness proble logic accordingly.