---
kind: pipeline
name: build

steps:
  - name: docker
    image: plugins/docker
    settings:
      repo: vbrandl/yagcdn
      auto_tag: true
      username:
        from_secret: docker_username
      password:
        from_secret: docker_password
    ref:
      - refs/heads/master
      - refs/tags/v*
---
kind: signature
hmac: e4d2267d9d412733f8d6e771e3c49f058f098dae534491a57d920a5deb25dd02

...