version: v1.0
name: Docker Build 
agent:
  machine:
    type: e1-standard-2
    os_image: ubuntu1804
blocks:
  - name: Build
    task:
      jobs:
        - name: 'Alpine'
          commands:
            - checkout
            - cd alpine
            - 'docker build --network=host -t catdeployed/postal:alpine .'
            - docker save -o postal-alpine-container.tar catdeployed/postal:alpine
            - artifact push workflow postal-alpine-container.tar --expire-in 1d
        - name: 'Ubuntu'
          commands:
            - checkout
            - cd ubuntu
            - 'docker build --network=host -t catdeployed/postal:ubuntu .'
            - docker save -o postal-ubuntu-container.tar catdeployed/postal:ubuntu
            - artifact push workflow postal-ubuntu-container.tar --expire-in 1d
promotions:
  - name: Default Promotion
    pipeline_file: tests.yml
    auto_promote:
      when: result = 'passed'