GitHub actions build Java jar and deploy to AWS ECS Fargate

build-jar-deploy-ecs-fargate.yml

#See https://gist.github.com/bfrancom/d2ca0f7c767092a924c99545298b557d for Dockerfile used
#Author: Ben Francom
name: Build

#on: workflow_dispatch
on:
    push:
        branches:
            - "main"

jobs:
    build:
        name: Package & Deploy
        runs-on: ubuntu-latest
        timeout-minutes: 25
        steps:
            - name: Cancel Previous Runs
              uses: styfle/[email protected]
              with:
                  access_token: ${{ github.token }}

            - uses: actions/checkout@v2
            - name: Set up JDK 8
              uses: actions/setup-java@v1
              with:
                  java-version: 8

            - name: Cache local Maven repository
              uses: actions/cache@v2
              with:
                  path: ~/.m2
                  key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
                  restore-keys: |
                      ${{ runner.os }}-maven-


            - name: Maven Package
              run: mvn -B package -DskipTests -f ./pom.xml

            -   name: Configure 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

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

            -   name: set env
                id: vars
                run: |
                    echo ::set-output name=github_short_sha::$(echo ${GITHUB_SHA:0:7})

            -   name: Build & Push Image
                id: build-image
                env:
                    DOCKER_BUILDKIT: 1
                    ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
                    ECR_REPOSITORY: app-repo
                    IMAGE_TAG: ${{ steps.vars.outputs.github_short_sha }}
                run: |
                    docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:latest -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
                    docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
                    docker push $ECR_REGISTRY/$ECR_REPOSITORY:latest
                    echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG"

            -   name: Fill in the new image ID for App Fargate task definition
                id: app-task-def
                uses: aws-actions/amazon-ecs-render-task-definition@v1
                with:
                    task-definition: .aws/prod-definition.json
                    container-name: prod-app-container
                    image: ${{ steps.build-image.outputs.image }}


            -   name: Deploy App Fargate Task
                uses: aws-actions/amazon-ecs-deploy-task-definition@v1
                with:
                    task-definition: ${{ steps.app-task-def.outputs.task-definition }}
                    service: prod-service
                    cluster: prod-cluster