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GitHub Actions Study Guide.md

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GitHub Actions Study Guide

Domain 1: Author and maintain workflows (40% of exam)

Work with events that trigger workflows

  • Configure workflows to run for one or more events
  • Configure workflows to run for scheduled events
  • Configure workflows to run for manual events
  • Configure workflows to run for webhook events (i.e. check_run, check_suite, deployment, etc.)
  • Demonstrate a GitHub event to trigger a workflow based on a practical use case

Use the components of a workflow

  • Identify the correct syntax for workflow jobs (i.e. indentation and encapsulation of parts of the workflow)
  • Use job steps for actions and shell commands
  • Use conditional keywords for steps
  • Describe how actions, workflows, jobs, steps, runs, and the marketplace work together
  • Identify scenarios suited for using GitHub-hosted and self-hosted runners
  • Implement workflow commands as a run step to communicate with the runner
  • Demonstrate the use of dependent jobs

Use encrypted secrets and environment variables as part of a workflow

  • Use encrypted secrets to store sensitive information
  • Identify the available default environment variables during the construction of the workflow
  • Identify the location to set custom environment variables in a workflow
  • Identify when to use the GITHUB_TOKEN secret
  • Demonstrate how to use workflow commands to set environment variables

Create a workflow for a particular purpose

  • Add a script to a workflow
  • Demonstrate how to publish to GitHub Packages using a workflow
  • Demonstrate how to publish to GitHub Container Registry using a workflow
  • Use database and service containers in a GitHub Actions workflow
  • Use labels to route workflows to specific runners
  • Use CodeQL as a step in a workflow
  • Demonstrate how to publish a component as a GitHub release using GitHub Actions
  • Deploy a release to a cloud provider using a GitHub Actions workflow

Manage workflow runs

  • Configure caching of workflow dependencies
  • Identify steps to pass data between jobs in a workflow
  • Remove workflow artifacts from GitHub
  • Add a workflow status badge
  • Add environment protections
  • Define a matrix of different job configurations
  • Implement workflow approval gates

Domain 2: Consume workflows (20% of exam)

Interpret the effects of a workflow

  • Identify the event that triggered a workflow from its effects in a repository, issue, or pull request
  • Describe a workflow’s effects from reading its configuration file
  • Diagnose a failed workflow run (i.e. using a workflow run history and its logs, determine why a workflow run may have failed)
  • Identify ways to access the workflow logs from the user interface
  • Identify ways to access the workflow logs from GitHub’s REST API
  • Enable step debug logging in a workflow
  • Demonstrate how to use default environment variables in a workflow
  • Demonstrate the correct syntax for passing custom environment variables in a workflow step

Locate a workflow, its logs, and artifacts

  • Describe where to locate a workflow in a repository
  • Explain the difference between disabling and deleting of workflows
  • Demonstrate how to download workflow artifacts from the user interface
  • Describe how to use an organization’s templated workflow

Use actions in a workflow

  • Define the indicators of what makes a trustworthy action
  • Identify an action’s type, inputs, and outputs
  • Demonstrate how to use the specific version of an action in a workflow

Domain 3: Author and maintain actions (25% of exam)

Use available action types

  • Identify the type of action required for a given problem (i.e. JavaScript, Docker container, run step)
  • Demonstrate how to troubleshoot JavaScript actions
  • Demonstrate how to troubleshoot Docker container actions

Describe the components of an action

  • Identify the files and directory structure needed to create an action
  • Identify the metadata and syntax needed to create an action
  • Implement workflow commands within an action to communicate with the runner (Note: this includes exit codes)

Distribute an action

  • Identify how to select an appropriate distribution model for an action (i.e., public, private, marketplace)
  • Identify the best practices for distributing custom actions
  • Demonstrate how to create a release strategy for an action (i.e. versioning)
  • Demonstrate how to publish an action to the GitHub marketplace

Domain 4: Manage GitHub Actions in the enterprise (15% of exam)

Distribute actions and workflows to the enterprise

  • Explain reuse templates for actions and workflows
  • Define an approach for managing and leveraging reusable components (i.e. repos for storage, naming conventions for files/folders, and plans for ongoing maintenance)
  • Define how to distribute actions for an enterprise
  • Define how to control access to actions within the enterprise
  • Configure organizational use policies for GitHub Actions

Manage runners for the enterprise

  • Describe the effects of configuring IP allow lists on GitHub-hosted and self-hosted runners
  • Describe how to select appropriate runners to support workloads (i.e. using a self-hosted versus GitHub-hosted runner, choosing supported operating systems)
  • Explain the difference between GitHub-hosted and self-hosted runners
  • Configure self-hosted runners for enterprise use (i.e. including proxies, labels, networking)
  • Demonstrate how to manage self-hosted runners using groups (i.e. managing access, moving runners into and between groups)
  • Demonstrate how to monitor, troubleshoot, and update self-hosted runners

Manage encrypted secrets in the enterprise

  • Identify the scope of encrypted secrets
  • Demonstrate how to access encrypted secrets within actions and workflows
  • Explain how to manage organization-level encrypted secrets
  • Explain how to manage repository-level encrypted secrets