Auto-generated Passwords (Internal PostgreSQL)

An internal PostgreSQL requires one password variable to be available during installation or upgrade. If it is not set by the user, a random 10 character alphanumeric string will be set. Therefore, it is recommended to set this explicitly during installation and upgrade.

--set postgresql.postgresqlPassword=<value>

The values should remain same between upgrades. If this was auto-generated during helm install, the same password will have to be passed on future upgrades.

To read the current password, use the following command. For more information on reading a secret value, see Kubernetes: Decoding a Secret.

POSTGRES_PASSWORD=$(kubectl get secret -n <namespace><release_name>-postgresql -o jsonpath="{.data.postgresql-password}" | base64 --decode)

The following parameter can be set during the upgrade:

--set postgresql.postgresqlPassword=${POSTGRES_PASSWORD}

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Tip

For Helm Charts version 7.111.x and later, the correct parameter for setting the PostgreSQL password has changed to postgresql.auth.password.