サンプル

version: 2
jobs:
  build:
    working_directory: ~/mern-starter
    # プライマリ コンテナは、最初にリストしたイメージのインスタンスです。 ジョブのコマンドはこのコンテナ内で実行されます。
    docker:
      - image: cimg/node:17.3.0
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
    # The secondary container is an instance of the second listed image which is run in a common network where ports exposed on the primary container are available on localhost.
      - image: mongo:3.4.4-jessie
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
    steps:
      - checkout
      - run:
          name: Update npm
          command: 'sudo npm install -g npm@latest'
      - restore_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
      - run:
          name: Install npm wee
          command: npm install
      - save_cache:
          key: dependency-cache-{{ checksum "package-lock.json" }}
          paths:
            - node_modules

version: 2
jobs:
  build:
    machine: true

version: 2
jobs:
  build:
    working_directory: ~/code
    docker:
      - image: cimg/android:2021.10.2
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
    environment:
      JVM_OPTS: -Xmx3200m
    steps:
      - checkout
      - restore_cache:
          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
#      - run:
#         name: Chmod パーミッション # Gradlew Dependencies のパーミッションが失敗する場合は、これを使用します
#         command: sudo chmod +x ./gradlew
      - run:
          name: 依存関係のダウンロード
          command: ./gradlew androidDependencies