# Continuous Delivery Workflow
#
# This should happen whenever we push a new tag, and we tag an existing
# commit after we know it's good (e.g., has been tested).
#
# To create a new tag, we also need to update the package.json version:
#
# $ npm version 0.5.0
#
# This will update `version` in package.json to `0.5.0` and create a new
# tag, `v0.5.0` in git. We'll then use this tag (i.e., `v0.5.0`) to tag
# our docker image before we push to AWS.
name: cd

on:
  push:
    # Whenever a new tag is pushed
    tags:
      # Any tag starting with v... should trigger this workflow.
      - 'v**'

jobs:
  # NOTE: this assumes our CI jobs have already passed previously
  # (i.e., that we don't tag a commit manually until we know a build is working)
  aws:
    name: AWS
    runs-on: ubuntu-latest
    steps:
        - name: Check out code
          uses: actions/checkout@v3

        # Use buildx, which is faster and can optimize the build steps
        - name: Set up Docker Buildx
          uses: docker/setup-buildx-action@v2
        
        # NOTE: ending and restarting the Learner Lab will void these secrets,
        # update them if you are doing this during a new session:
        # `Error: The security token included in the request is expired`
        - name: Configure AWS Credentials using Secrets
          uses: aws-actions/configure-aws-credentials@v2
          with:
            # Use our GitHub Encrypted Secrets via secrets.*
            aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
            aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
            aws-session-token: ${{ secrets.AWS_SESSION_TOKEN }}
            # Hard-code our region, which isn't a secret, and won't change
            aws-region: us-east-1

        # Login to our ECR repository using the configured credentials
        - name: Login to Amazon ECR
          id: login-ecr
          uses: aws-actions/amazon-ecr-login@v1

        # Build and Push an Image to Amazon ECR
        - name: Build and push to Amazon ECR
          env:
            # Define an Environment Variable with our ECR Registry, getting
            # the value from the previous step's outputs
            ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
            # Define an Environment Variable with our ECR Repository Name
            ECR_REPO: fragments
            # We'll give this image two different tags. First, we'll use the git tag (vX.Y.Z)
            # so that we can always go back and re-create this setup again in the future
            # if we have to test or debug something. Second, we'll also replace the
            # `latest` tag, since this is our most up-to-date version.
            VERSION_TAG: ${{ github.ref_name }}
          uses: docker/build-push-action@v4
          with:
            push: true
            # Use the git tag version and `latest`
            tags: ${{ env.ECR_REGISTRY }}/${{ env.ECR_REPO }}:${{ env.VERSION_TAG }}, ${{ env.ECR_REGISTRY }}/${{ env.ECR_REPO }}:latest
        # We need to update our fragment's Task Definition JSON
        # (i.e., fragments-definition.json) to use the newly
        # updated Docker Image to use (i.e., the tag we just pushed to ECR).
        # We can also update/set the environment variables if we want.
        - name: Fill in the new image ID in the Amazon ECS task definition
          id: update-task-def
          uses: aws-actions/amazon-ecs-render-task-definition@v1
          env:
            ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
            ECR_REPO: fragments
            VERSION_TAG: ${{ github.ref_name }}
          with:
            task-definition: fragments-definition.json
            container-name: fragments
            # Use the image we just built and pushed to ECR for this tag
            image: ${{ env.ECR_REGISTRY }}/${{ env.ECR_REPO }}:${{ env.VERSION_TAG }}
            # Add all the necessary environment variables, using GitHub Encrypted Secrets
            # for any values that should not be checked into git directly.  Here are
            # a few to get you started, but you should fill in the rest yourself.
            environment-variables: |
              LOG_LEVEL=info
              NODE_ENV=production
              API_URL=http://ec2con-ecsel-ndbxa4tknlkp-1711976616.us-east-1.elb.amazonaws.com:8080/
              AWS_S3_BUCKET_NAME=mphong-duc-fragments
              AWS_DYNAMODB_TABLE_NAME=fragments
              PORT=8080
              HTPASSWD_FILE=tests/.htpasswd
              AWS_COGNITO_POOL_ID=${{ secrets.AWS_COGNITO_POOL_ID }}
              AWS_COGNITO_CLIENT_ID=${{ secrets.AWS_COGNITO_CLIENT_ID }}
        - name: Deploy Amazon ECS task definition
          uses: aws-actions/amazon-ecs-deploy-task-definition@v1
          with:
            task-definition: ${{ steps.update-task-def.outputs.task-definition }}
            cluster: fragments-cluster
            service: fragments-service
            wait-for-service-stability: true