注： GitHub 托管的运行器目前在 GitHub Enterprise Server 上不受支持。 您可以在 GitHub 公共路线图 上查看有关未来支持计划的更多信息。
The workflow file is written in YAML. In the YAML workflow file, you can use expression syntax to evaluate contextual information, literals, operators, and functions. Contextual information includes workflow, environment variables, secrets, and the events that triggered the workflow. When you use
run in a workflow step to run shell commands, you can use specific workflow command syntax to set environment variables, set output parameters for subsequent steps, and set error or debug messages.
You can configure workflows to run when specific GitHub events occur, at a scheduled time, manually, or when events outside of GitHub occur.
GitHub provides a token that you can use to authenticate on behalf of GitHub Actions. You can also store sensitive information as a secret in your organization or repository. GitHub encrypts all secrets.
GitHub offers hosted virtual machines to run workflows. The virtual machine contains an environment with tools, packages, and environment variables for GitHub Actions to use.