ecs-task-def-replacements

Help on aws ECS deploy, getting the current task running on a service, or the latest revision from a task definition family, replacing any field on the running/latest task definition.

Plays nice with:

• https://github.com/marketplace/actions/amazon-ecs-deploy-task-definition-action-for-github-actions

• https://github.com/marketplace/actions/configure-aws-credentials-action-for-github-actions

• https://github.com/marketplace/actions/amazon-ecr-login-action-for-github-actions

Usage for ECS service

Case you are using for get the currently running task definition (not the last revision, this is very useful when the last task definition isn't running on serive, maybe because a rollback), you need to specify the cluster name and service name

- name: Retrieve trask def
  uses: pagarme/ecs-task-def-replacements@main
  id: task
  with:
    cluster-name: my-ecs-cluster
    service-name: my-service-name
    replacements: |
      {
        "containerDefinitions": [{
          "image": "my-new-image"
        }]
      }

If you are interested to get the last revision of a task definition, you can use in this way

- name: Retrieve trask def
  uses: pagarme/ecs-task-def-replacements@main
  id: task
  with:
    task-name: my-task-name
    replacements: |
      {
        "containerDefinitions": [{
          "image": "my-new-image"
        }]
      }

Pipeline that use this Action

name: Build and Deploy
on:
  push:
    branches:
      - main
jobs:
  build_and_deploy:
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout and set Output
        id: checkout_code
        uses: actions/checkout@v2

      - name: Configure AWS credentials
        id: login_aws_credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-east-1
          mask-aws-account-id: 'no'

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Build, tag, and push image to Amazon ECR
        id: build
        env:
          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
          ECR_REPOSITORY: my-service-repository
        run: |
          docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:${GITHUB_SHA::7} --build-arg DD_VERSION=${GITHUB_SHA::7} .
          docker push $ECR_REGISTRY/$ECR_REPOSITORY:${GITHUB_SHA::7}
          echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:${GITHUB_SHA::7}"

      - name: Retrieve trask def
        uses: pagarme/ecs-task-def-replacements@main
        id: task
        with:
          cluster-name: my-cluster
          service-name: my-service
          replacements: |
            {
              "containerDefinitions": [{
                "image": "${{ steps.build.outputs.image }}"
              }]
            }

      - name: Deploy to Amazon ECS
        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
        with:
          task-definition: ${{ steps.task.outputs.taskDef }}
          service: my-service
          cluster: my-cluster
          wait-for-service-stability: true

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