GitHub Actions: What Are the Required Keywords for Valid action.yml File in GitHub Actions?

Discover the essential keywords you need to include in your action.yml file to create a valid GitHub Action. Learn how to properly configure your action metadata for seamless integration and execution within your workflows.

Question

Which keywords are required for a valid action.yml file?

A. name, runs, composite
B. name, runs, description
C. name, description, branding
D. name, description, composite

Answer

B. name, runs, description

Explanation

These are the three required keywords for a valid action.yml file.

The correct answer is B. name, runs, description.

In order to create a valid action.yml file for a GitHub Action, there are three required keywords that must be included:

1. `name`: This keyword specifies the name of your action. It should be a concise and descriptive name that clearly represents the purpose of your action. The name is displayed in the GitHub Actions marketplace and helps users understand what your action does.
2. `runs`: This keyword defines the commands or scripts that your action will execute when triggered. It specifies the entry point for your action, which can be a script file, a Docker container, or a composite action. The `runs` keyword is crucial as it tells GitHub Actions what to run when your action is invoked.
3. `description`: This keyword provides a brief description of your action. It should summarize the functionality and purpose of your action in a clear and concise manner. The description is displayed in the GitHub Actions marketplace and helps users understand the benefits and use cases of your action.

While the other options mentioned, such as `composite` and `branding`, are valid keywords that can be used in an action.yml file, they are not strictly required for a valid action configuration.

• `composite`: This keyword is used when creating a composite action, which allows you to combine multiple actions into a single action. However, it is not a mandatory keyword for all actions.
• `branding`: This keyword is used to specify custom branding elements for your action, such as an icon and color. It enhances the visual representation of your action in the GitHub Actions marketplace but is not a required keyword.

In summary, to create a valid action.yml file for a GitHub Action, you must include the `name`, `runs`, and `description` keywords. These keywords provide the essential information needed to identify, execute, and understand the purpose of your action.

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