Database oracle with `service_name`

Configuring the server
1

We use an oracle database with service_name instead of SID , so we don’t know how to set the service_name ? our Env :

extraEnv: |
  - name: DB_VENDOR
    value: oracle
  - name: DB_ADDR
    value: oracle-db-6-20
  - name: DB_PORT
    value: "1521"
  - name: DB_DATABASE
    value: "LVN"
  - name: DB_USER
    value: "KEYCLOAK8"

but we facing this error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
how can we set service_name in config database ?
we use this helm chart:
https://github.com/codecentric/helm-charts