Speed up CI/CD pipelines with intelligent caching strategies. Learn dependency caching, Docker layer caching, and workflow optimization techniques to reduce build times.

Learning Objectives

Implement dependency caching for faster installs

Use cache keys and restore keys effectively

Optimize workflow execution time

Cache build outputs and artifacts

Measure and improve pipeline performance

Step 1

Measure baseline performance

Establish current workflow speed before optimization.

Commands to Run

cd cicd-testing

gh run list --limit 5 --json durationMs,name,conclusion

gh run view --log | grep 'Elapsed time'

What This Does

Before optimizing, measure current performance. GitHub tracks duration of each step and total workflow time.

Expected Outcome

You'll see workflow durations, likely 2-4 minutes total. 'Install dependencies' step probably takes 30-60 seconds.

Pro Tips

1
Baseline metrics help prove optimization effectiveness
2
Focus on slowest steps first for biggest impact
3
Dependency installation is usually the slowest step
4
Track improvements after each optimization

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104 — Workflow Caching and Optimization