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CircleCI 2.1 設定サンプル(Node + MySQL + 複数DB起動)

Last updated at Posted at 2020-02-06

環境

設定例

version: 2.1

orbs:
  node: circleci/node@3.0.0

executors:
  default:
    docker:
      - image: cimg/node:16.13.1
  extended:
    docker:
      - image: cimg/node:16.13.1
      - image: cimg/mysql:8.0l
        environment:
          MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
          MYSQL_DATABASE: your_database_name_comes_here

commands:
  restore_yarn_cache:
    steps:
      - restore_cache:
          name: Restore Yarn Package Cache
          keys:
            - v1-yarn-packages-{{ checksum "yarn.lock" }}
  install_yarn_dependencies:
    steps:
      - run:
          name: Install Yarn Dependencies
          # to avoid "Extracting tar content of undefined failed"
          # https://github.com/yarnpkg/yarn/issues/7212
          command: yarn install --frozen-lockfile --cache-folder ~/.cache/yarn --network-concurrency 1
  save_yarn_cache:
    steps:
      - save_cache:
          name: Save Yarn Package Cache
          key: v1-yarn-packages-{{ checksum "yarn.lock" }}
          paths:
            - .yarn/cache
  wait_for_db_start_up:
    steps:
      - run:
          name: Wait for db start up
          command: dockerize -wait tcp://127.0.0.1:3306 -timeout 1m
  run_test:
    steps:
      - run:
          name: Run test
          command: yarn run test
  run_lint:
    steps:
      - run:
          name: Run lint
          command: yarn run lint

jobs:
  build:
    executor: default
    steps:
      - checkout
      - restore_yarn_cache
      - install_yarn_dependencies
      - save_yarn_cache
  test:
    executor: extended
    steps:
      - checkout
      - restore_yarn_cache
      - wait_for_db_start_up
      - run_test
  lint:
    executor: default
    steps:
      - checkout
      - restore_yarn_cache
      - run_lint

workflows:
  build_and_test:
    jobs:
      - build
      - lint:
          requires:
            - build
      - test:
          requires:
            - build

ポイント

  • 2.1の機能(executorscommands)を使って、設定をわかりやすくする。
  • executorを最適化する。
    • 例えば、DBのセットアップは数十秒かかるので(※実測で20秒程)、不要なところでは行わない。
    • 上記の例では、buildyarn install)にDBは不要なので、DBが無いexecutor(= default)を使っています。
    • executorの名前(defaultやextended)は任意です。
  • テスト実行前に、DBの起動待ちをする(dockerize -wait)。
  • step内でnameを付ける。
    • 無くてもいいですが、その場合はCircleCIのデフォルトが使われます。restore_cacheなどは全てRestoring Cacheとなり、中を見ないとどのステップか分からなくなるので、付けています。

参照先

Caching Dependencies

By default, cache storage duration is set to 15 days. This can be customized on the CircleCI web app
by navigating to Plan > Usage Controls. Currently, 15 days is also the maximum storage duration you can set.

Tip: Caches are immutable, so it is helpful to start all your cache keys with a version prefix, for example v1-.... This allows you to regenerate all of your caches just by incrementing the version in this prefix.

yarn install--frozen-lockfile オプションを付ける

version: 2.1 では workflows の version 指定は不要。

その他

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