---
kind: pipeline
type: docker
name: test pipe

platform:
  os: linux
  arch: amd64

steps:
- name: step
  image: alpine
  commands:
  - echo hello
  - echo $${DRONE_COMMIT}
  - echo $${DRONE_TAG}
  when:
    event:
    - tag

trigger:
  branch:
  - this
  event:
  - tag

...