apiVersion: apps/v1
kind: Deployment
metadata:
  name: keycloak-postgresdb
spec:
  replicas: 1
  selector:
    matchLabels:
      app: keycloak-postgresdb
  template:
    metadata:
      labels:
        app: keycloak-postgresdb
    spec:
      containers:
        - name: keycloak-postgresdb
          image: 'postgres:14'
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 5432
          envFrom:
            - secretRef:
                # Must contain POSTGRES_DB, POSTGRES_USER, POSTGRES_PASSWORD
                name: keycloak-postgresdb-creds
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: db-data
              subPath: postgres
      volumes:
        - name: db-data
          persistentVolumeClaim:
            claimName: keycloak-db-persistent-volume-claim