keycloak and cockroachdb cloud - kubernetes

Question

I tried to use keycloak db against crdb cloud. I have used https://github.com/codecentric/helm-charts/tree/master/charts/keycloak charts for deployment k8s. I create a db for the keycloak and give the above configuration to success connection. I use my values.yaml and added additional env var:
extraEnv: |
- name: DB_VENDOR
value: postgres
- name: DB_ADDR
value: xxxx.xxx.cockroachlabs.cloud
- name: DB_PORT
value: "xxx"
- name: DB_DATABASE
value: keycloak
- name: DB_USER_FILE
value: /secrets/db-creds/user
- name: DB_PASSWORD_FILE
value: /secrets/db-creds/password
- name: JDBC_PARAMS
value: sslmode=verify-ca&sslrootcert=/secrets/crdb-creds/xxx.crt
- name: JDBC_PARAMS_FILE
value: /secrets/crdb-creds/xxx.crt
and also
# Add additional volumes, e. g. for custom themes
extraVolumes: |
- name: crdb-creds
secret:
secretName: keycloak-crdb-creds
- name: db-creds
secret:
secretName: keycloak-db-creds
and mounting
# Add additional volumes mounts, e. g. for custom themes
extraVolumeMounts: |
- name: crdb-creds
mountPath: /secrets/crdb-creds
readOnly: true
- name: db-creds
mountPath: /secrets/db-creds
readOnly: true
So in theory there is no restriction for using cockroach the with postgres db vendor in keycloak(!). And I am going to give a try for this and actually it wasn't give an error but it restaring after while and keeping restarting same period. So it gives an :
Caused by: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: java.sql.SQLException: IJ031040: Connection is not associated with a managed connection: org.jboss.jca.adapters.jdbc.jdk8.WrappedConnectionJDK8#3a612dd6
or
10:55:31,907 FATAL [org.keycloak.services] (ServerService Thread Pool -- 64) Error during startup: java.lang.IllegalStateException: Failed to retrieve lock
So my question is what is the variable for giving .crt path and is there any additional progress need to run this correctly