Learn GITHUB-ACTIONS with Real Code Examples
Updated Nov 27, 2025
Performance Notes
Use caching for dependencies to speed up builds
Use matrix builds judiciously to avoid exceeding workflow minutes
Split long workflows into multiple jobs for parallel execution
Monitor workflow duration for optimization opportunities
Avoid unnecessary actions or heavy Docker builds on GitHub-hosted runners
Security Notes
Store sensitive information in repository secrets
Restrict workflow access for forks in private repositories
Use verified marketplace actions when possible
Audit logs for unauthorized access or secrets usage
Keep self-hosted runners updated and secure
Monitoring Analytics
Workflow logs for step-level details
Runner metrics for performance
Artifact inspection for outputs
GitHub UI displays job success/failure
Third-party tools can integrate analytics
Code Quality
Consistent YAML formatting
Use reusable actions for common steps
Version control workflow files
Document triggers and workflow purpose
Test workflows in isolated branches