This service type is a little bit different, as it is not used to provide a stable endpoint to an internal service but to an external one. For example, let’s say we have a database running at my-db.company.com. Instead of having this endpoint hardcoded or defined in a config somewhere, we could create a db service like the following: 

xxxxxxxxxx

apiVersion: v1

kind: Service

metadata:

  name: db

spec:

  type: ExternalName

  externalName: my-db.company.com