CI/CD for simple spring boot app which uses docker. Here is github action and circle ci file which do the same thing.

circleci.yml

version: 2.1

jobs:
  build:
    docker:
      - image: gradle:alpine
    steps:
      - checkout
      - run: ./gradlew bootJar
      - persist_to_workspace:
          root: ./
          paths:
            - build/
            - .gradle/

  test:
    docker:
      - image: gradle:alpine
    steps:
      - checkout
      - run: ./gradlew test
      - store_test_results:
          path: build/test-results


  package:
    docker:
      - image: docker:dind
    steps:
      - setup_remote_docker:
          version: 19.03.13
      - checkout
      - attach_workspace:
          at: ./
      - run: docker build --iidfile image.txt -t registry.heroku.com/ashish-demo-app/web:${CIRCLE_SHA1} .
      - run: docker login --username=_ --password=$HEROKU_TOKEN registry.heroku.com
      - run: docker push registry.heroku.com/ashish-demo-app/web:${CIRCLE_SHA1}
      - persist_to_workspace:
          root: ./
          paths:
            - image.txt

  deploy:
    docker:
      - image: docker:dind
    steps:
      - setup_remote_docker:
          version: 19.03.13
      - attach_workspace:
          at: ./
      - run: apk add --no-cache curl
      - run:
          name: "Patch the container hosted in heroku"
          command: |
            curl -X PATCH https://api.heroku.com/apps/ashish-demo-app/formation --header "Content-Type: application/json" --header "Accept: application/vnd.heroku+json; version=3.docker-releases" --header "Authorization: Bearer ${HEROKU_TOKEN}" --data '{ "updates": [ { "type": "web", "docker_image": "'$(cat image.txt)'" } ] }'
workflows:
  version: 2
  build_and_test:
    jobs:
      - build
      - test
      - package:
          requires:
          - build
      - deploy:
          requires:
            - test
            - package
            

github-actions.yml

name: Demo CI/CD for bootcamp

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
  
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 8
      uses: actions/setup-java@v2
      with:
        java-version: '8'
        distribution: 'adopt'
    - name: Grant execute permission for gradlew
      run: chmod +x gradlew
    - name: Build with Gradle
      run: ./gradlew bootJar
    # Using cache instead of artifacts to avoid reaching the artifacts free quota size
    - name: Cache jar file for next job
      uses: actions/cache@v2
      with:
        path: build/libs/ashish-dev-boot-camp-demp-0.0.1-SNAPSHOT.jar
        key: boopapp-jar-${{ github.sha }}

  test:
  
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 8
      uses: actions/setup-java@v2
      with:
        java-version: '8'
        distribution: 'adopt'
    - name: Grant execute permission for gradlew
      run: chmod +x gradlew
    - name: Execute all tests
      run: ./gradlew test

  packageAndDeploy:
    needs: [build, test]
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/cache@v2
      with:
        path: build/libs/ashish-dev-boot-camp-demp-0.0.1-SNAPSHOT.jar
        key: boopapp-jar-${{ github.sha }}
        restore-keys: |
          boopapp-jar
    - name: Build the tagged Docker image
      run: docker build --iidfile image.txt --build-arg JAR_FILE=build/libs/ashish-dev-boot-camp-demp-0.0.1-SNAPSHOT.jar -t registry.heroku.com/ashish-demo-app/web:${GITHUB_SHA} .
    - name: Login to DockerHub Registry
      run: docker login --username=_ --password=${{ secrets.HEROKU_TOKEN }} registry.heroku.com
    - name: Push docker image to heroku
      run: docker push registry.heroku.com/ashish-demo-app/web:${GITHUB_SHA}
    - name: Patch the container
      run: |
        curl -X PATCH https://api.heroku.com/apps/ashish-demo-app/formation --header "Content-Type: application/json" --header "Accept: application/vnd.heroku+json; version=3.docker-releases" --header "Authorization: Bearer ${{ secrets.HEROKU_TOKEN }}" --data '{ "updates": [ { "type": "web", "docker_image": "'$(cat image.txt)'" } ] }'