Docker Build and Test Workflow

Layer caching speeds up Docker builds by reusing unchanged layers from previous builds. This Skill automates cache management and selectively rebuilds only when the Dockerfile or image metadata changes, avoiding unnecessary full rebuilds and significantly reducing iteration time.

Rebuild when the Dockerfile content changes or image metadata requires updates; reuse cached images otherwise. This Skill provides patterns to detect these conditions automatically, ensuring you rebuild only when necessary while maintaining correctness across standard, dev, stage, and cookbook targets.

Automate builds and tests using script-driven workflows with layer caching discipline. This Skill provides build-local.sh and test-dockerfile.sh scripts that handle iterative development and testing across multiple targets while managing GitHub token authentication securely.

Yes. This Skill optimizes Docker workflows for CI/CD by enforcing strict layer caching patterns, avoiding redundant invocations, and implementing manual cache management discipline, making builds faster and more predictable in automated environments.

Use test-dockerfile.sh to validate images across targets while leveraging cached layers to speed up iteration. This Skill integrates testing into the build workflow, enabling rapid feedback loops without rebuilding unchanged layers.

Use gh auth for secure GitHub token handling within Docker build scripts. This Skill demonstrates safe credential management patterns integrated into the automation scripts, preventing token exposure while maintaining workflow functionality.