keycloak and postgresql on openshift - postgresql

Question

I tried to deploy keycloak with POSTGRESQL on openshift. I used this image, jboss/keycloak-openshift image for keycloak and rhscl/postgresql-95-rhel7 for postgresql.
I then I added environment variables in keycloak deployment
DB_DATABASE : keycloak
DB_USER : postgresl-secret-database-user
DB_PASSWORD : postgresl-secret-database-password
DB_VENDOR : POSTGRES
I thought this is what I needed to do to make keycloak work with postgresql. These are the errors and warning I am seeing in the pod logs.
IOException occurred while connecting to postgres:5432: java.net.UnknownHostException: postgres
Connection error: : org.postgresql.util.PSQLException: The connection attempt failed.
But it is not working this way. The keycloak pod fails. Do I need to do anything else as well?

Answer 1

What is the name of your database service?
If not the default of postgres that Keycloak expects, you need to set DB_ADDR. I use the following in my template:
{
"name": "KEYCLOAK_USER",
"value": "${KEYCLOAK_USER}"
},
{
"name": "KEYCLOAK_PASSWORD",
"value": "${KEYCLOAK_PASSWORD}"
},
{
"name": "DB_VENDOR",
"value": "postgres"
},
{
"name": "DB_ADDR",
"value": "${KEYCLOAK_NAME}-db"
},
{
"name": "DB_PORT",
"value": "5432"
},
{
"name": "DB_DATABASE",
"value": "keycloak"
},
{
"name": "DB_USER",
"value": "keycloak"
},
{
"name": "DB_PASSWORD",
"value": "${DATABASE_PASSWORD}"
},
Suggest setting them all.
Further details in:
https://github.com/jupyter-on-openshift/poc-hub-keycloak-auth/blob/master/templates/jupyterhub.json