version: 2.1
jobs:
  Hello-World:
    docker:
      - image: alpine:3.7
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
    steps:
      - run:
          name: Hello World
          command: |
            echo 'Hello World!'
            echo 'This is the delivery pipeline'
  I-Have-Code:
    docker:
      - image: alpine:3.7
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
    steps:
      - checkout
      - run:
          name: Code Has Arrived
          command: |
            ls -al
            echo '^^^That should look familiar^^^'
  Run-With-Node:
    docker:
      - image: circleci/node:10-browsers
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
    steps:
      - run:
          name: Running In A Container With Node
          command: |
            node -v
  Now-Complete:
    docker:
      - image: alpine:3.7
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
    steps:
      - run:
          name: Approval Complete
          command: |
            echo 'Do work once the approval has completed'

workflows:
  version: 2
  Example_Workflow:
    jobs:
      - Hello-World
      - I-Have-Code:
          requires:
            - Hello-World
      - Run-With-Node:
          requires:
            - Hello-World
      - Hold-For-Approval:
          type: approval
          requires:
            - Run-With-Node
            - I-Have-Code
      - Now-Complete:
          requires:
            - Hold-For-Approval