Quickstart for GitHub Actions

Introduction

You only need a GitHub repository to create and run a GitHub Actions workflow. In this guide, you'll add a workflow that demonstrates some of the essential features of GitHub Actions.

The following example shows you how GitHub Actions jobs can be automatically triggered, where they run, and how they can interact with the code in your repository.

Creating your first workflow

1. Create a .github/workflows directory in your repository on GitHub if this directory does not already exist.

2. In the .github/workflows directory, create a file named github-actions-demo.yml. For more information, see "Creating new files."

3. Copy the following YAML contents into the github-actions-demo.yml file:

   YAML

   name: GitHub Actions Demo
   run-name: ${{ github.actor }} is testing out GitHub Actions 🚀
   on: [push]
   jobs:
     Explore-GitHub-Actions:
       runs-on: ubuntu-latest
       steps:
         - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
         - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
         - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
         - name: Check out repository code
           uses: actions/checkout@v3
         - run: echo "💡 The ${{ github.repository }} repository has been cloned to the runner."
         - run: echo "🖥️ The workflow is now ready to test your code on the runner."
         - name: List files in the repository
           run: |
             ls ${{ github.workspace }}
         - run: echo "🍏 This job's status is ${{ job.status }}."

4. Scroll to the bottom of the page and select Create a new branch for this commit and start a pull request. Then, to create a pull request, click Propose new file.

   

Committing the workflow file to a branch in your repository triggers the push event and runs your workflow.

Viewing your workflow results

1. GitHub.com で、リポジトリのメイン ページへ移動します。

2. リポジトリ名の下の [Actions] (アクション) をクリックします。

3. In the left sidebar, click the workflow you want to see.

   

4. From the list of workflow runs, click the name of the run you want to see.

   

5. Under Jobs , click the Explore-GitHub-Actions job.

   

6. The log shows you how each of the steps was processed. Expand any of the steps to view its details.

   

   For example, you can see the list of files in your repository:

More starter workflows

GitHub には、独自の継続的インテグレーション ワークフローを作成するためにカスタマイズできる事前構成済みのスターター ワークフローが用意されています。 GitHub はコードを分析し、自分のリポジトリに役立つ可能性のある CI スターターワー クフローを表示します。 たとえばリポジトリにNode.jsのコードが含まれているなら、Node.jsプロジェクトのためのサジェッションが提示されます。 スターター ワークフローは、カスタム ワークフローの構築の出発点として利用することも、そのまま利用することもできます。

スターター ワークフローの完全なリストは、actions/starter-workflows リポジトリ で参照できます。

More complex examples

GitHub Actions のより複雑な機能を示す例については、「例」を参照してください。 ランナーでコードをテストする方法、GitHub CLI にアクセスする方法、コンカレンシーやテスト マトリックスなどの高度な機能を使用する方法を説明する詳しい例を確認できます。

Next steps

The example workflow you just added runs each time code is pushed to the branch, and shows you how GitHub Actions can work with the contents of your repository. But this is only the beginning of what you can do with GitHub Actions:

• Your repository can contain multiple workflows that trigger different jobs based on different events.
• You can use a workflow to install software testing apps and have them automatically test your code on GitHub's runners.

GitHub Actions can help you automate nearly every aspect of your application development processes. Ready to get started? Here are some helpful resources for taking your next steps with GitHub Actions:

• "Learn GitHub Actions" for an in-depth tutorial.