openshift上的keycloak和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