GitHub Actions offers features that let you control deployments. You can:
- Trigger workflows with a variety of events.
- Configure environments to set rules before a job can proceed and to limit access to secrets.
- Use concurrency to control the number of deployments running at a time.
For more information about continuous deployment, see "About continuous deployment."
You should be familiar with the syntax for GitHub Actions. For more information, see "Learn GitHub Actions."
You can use a variety of events to trigger your deployment workflow. Some of the most common are:
For example, a workflow with the following triggers runs whenever:
- There is a push to the
- A pull request targeting the
mainbranch is opened, synchronized, or reopened.
- Someone manually triggers it.
on: push: branches: - main pull_request: branches: - main workflow_dispatch:
For more information, see "Events that trigger workflows."
开发。 当 GitHub Actions 工作流程部署到某个环境时，该环境将显示在存储库的主页上。 您可以使用环境来要求批准才能继续作业，限制哪些分支可以触发工作流程，或限制对机密的访问。 有关创建环境的更多信息，请参阅“使用环境进行部署”。
Concurrency ensures that only a single job or workflow using the same concurrency group will run at a time. You can use concurrency so that an environment has a maximum of one deployment in progress and one deployment pending at a time.
environment are not connected. The concurrency value can be any string; it does not need to be an environment name. Additionally, if another workflow uses the same environment but does not specify concurrency, that workflow will not be subject to any concurrency rules.
For example, when the following workflow runs, it will be paused with the status
pending if any job or workflow that uses the
production concurrency group is in progress. It will also cancel any job or workflow that uses the
production concurrency group and has the status
pending. This means that there will be a maximum of one running and one pending job or workflow in that uses the
production concurrency group.
name: Deployment concurrency: production on: push: branches: - main jobs: deployment: runs-on: ubuntu-latest environment: production steps: - name: deploy # ...deployment-specific steps
You can also specify concurrency at the job level. This will allow other jobs in the workflow to proceed even if the concurrent job is
name: Deployment on: push: branches: - main jobs: deployment: runs-on: ubuntu-latest environment: production concurrency: production steps: - name: deploy # ...deployment-specific steps
You can also use
cancel-in-progress to cancel any currently running job or workflow in the same concurrency group.
name: Deployment concurrency: group: production cancel-in-progress: true on: push: branches: - main jobs: deployment: runs-on: ubuntu-latest environment: production steps: - name: deploy # ...deployment-specific steps
For guidance on writing deployment-specific steps, see "Finding deployment examples."
When a GitHub Actions workflow deploys to an environment, the environment is displayed on the main page of the repository. For more information about viewing deployments to environments, see "Viewing deployment history."
Every workflow run generates a real-time graph that illustrates the run progress. You can use this graph to monitor and debug deployments. For more information see, "Using the visualization graph."
You can also view the logs of each workflow run and the history of workflow runs. For more information, see "Viewing workflow run history."
You can also build an app that uses deployment and deployment status webhooks to track deployments. 当引用环境的工作流程作业运行时，它会创建一个部署对象，并将
environment 属性设置为环境的名称。 随着工作流程的进行，它还会创建部署状态对象，其中
environment_url 属性设置为环境的 URL（如果在工作流程中指定），
state 属性设置为作业的状态。 For more information, see "Apps" and "Webhook events and payloads."
You can use a status badge to display the status of your deployment workflow. 状态徽章显示工作流程目前失败还是通过。 添加状态徽章的常见位置是仓库的
README.md 文件，但也可将其添加到您喜欢的任何网页。 默认情况下，徽章显示默认分支的状态。 您也可以在 URL 中使用
For more information, see "Adding a workflow status badge."
This article demonstrated features of GitHub Actions that you can add to your deployment workflows.
许多服务提供商还会在 GitHub Marketplace 上提供用于部署其服务的操作。 有关完整列表，请参阅 GitHub Marketplace。