apiVersion: v1
kind: Service
metadata:
  name: mariadb
spec:
  ipFamilyPolicy: PreferDualStack
  selector:
    name: mariadb
  ports:
    - protocol: TCP
      # The service listens to incoming requests on this port ...
      port: 3306
      # And forwards them to the container which listens on that port.
      targetPort: 3306