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PostgreSQL, also known as Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

By install ing the Postgresql component, a complete Postgresql server will be installed with a Service that can be reached on the postgresql host and port 5432 from inside the Kubernetes cluster. At the moment the Postgresql instance is only available from inside the cluster and it cannot be reached from the outside.

The Postgresql Helm chart can be installed either from the Catalog in the Control Center or by running helm install:

helm repo add airy
helm repo update
helm install postgresql airy/postgresql

The default version is 15.1 but this can be modified by overwriting the --set version value, when deploying the Helm chart.

To retrieve the administrative Postgresql password for the postgres user run:

kubectl get secret postgresql -o jsonpath='{.data.postgresql-password}' | base64 -d

Note that the password changes every time that the helm chart is updated. Would be best to use it as an environmental variable in the pod, mounted directly from the postgresql secret.