aws_ecs_deploy.yml

# This workflow will create, update, or delete the AWS ECS environment.

name: AWS ECS Deploy

on:
  workflow_dispatch:
    inputs:
      deploy:
        description: 'Choose "up" to create/update or "down" to delete.'
        required: true
        default: up
        type: choice
        options:
        - up
        - down
      confirm:
        description: 'Type "run" to continue.'
        required: true

env:
  AWS_ACCESS_KEY_ID: ${{ secrets.GH_ACTIONS_RUNNER_AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets.GH_ACTIONS_RUNNER_AWS_SECRET_ACCESS_KEY }}
  AWS_DEFAULT_REGION: us-east-1
  AWS_IMAGE_REGISTRY: 376391014730.dkr.ecr.us-east-1.amazonaws.com

jobs:
  deploy:
    runs-on: ubuntu-latest
    timeout-minutes: 20

    steps:
    - name: User acknowledged warning?
      run: |
        if [[ "${{ github.event.inputs.confirm }}" == "run" ]]
        then
          echo 'OK'
        else
          echo 'User must acknowledge warning by typing "run" at the prompt.'
          exit 1
        fi

    - uses: actions/checkout@v2

    # https://docs.docker.com/cloud/ecs-integration/#install-the-docker-compose-cli-on-linux
    - name: Install docker compose with ecs integration
      run: curl -L https://raw.githubusercontent.com/docker/compose-cli/main/scripts/install/install_linux.sh | sh

    # context creation requires credentials; read it from the environment
    - name: Create AWS ECS docker context
      run: echo 'env' | docker context create ecs aws-ecs

    - name: Login to AWS ECR
      run: aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin "${AWS_IMAGE_REGISTRY}"

    - name: Display full CloudFormation template
      run: docker --context aws-ecs compose --file docker-compose-ecs.yml convert

    - name: Which operation?
      id: which-operation
      run: |
        if [[ "${{ github.event.inputs.deploy }}" == "up" ]]
        then
          echo "Up operation."
          if aws cloudformation describe-stacks --stack flaskbb
          then
            echo "Stack currently exists."
            echo "::set-output name=answer::stack-update-complete"
          else
            echo "Stack does not exist."
            echo "::set-output name=answer::stack-create-complete"
          fi
        else
          echo "Down operation."
          echo "::set-output name=answer::stack-delete-complete"
        fi

    - name: Deploy
      run: docker --context aws-ecs compose --file docker-compose-ecs.yml --project-name flaskbb ${{ github.event.inputs.deploy }}

    - name: Wait until complete
      run: aws cloudformation wait ${{ steps.which-operation.outputs.answer }} --stack flaskbb

    - name: Display load balancer address
      run: |
        if [[ "${{ github.event.inputs.deploy }}" == "up" ]]
        then
          docker --context aws-ecs compose --file docker-compose-ecs.yml --project-name flaskbb ps
        else
          echo "Nothing to display because it was a down operation."
        fi