Cheat Sheet logoCheat Sheet Today
Dockerfile Cheat Sheet/Cache dependencies effectively

Copy dependency manifests before application code to maximize layer cache reuse.

Back to sheetBrowse commands
Sign in to save
Section: Common Patterns

Cache dependencies effectively

dockerfile
dockerfile
COPY package*.json ./
RUN npm ci
COPY . .
Explanation

A classic Dockerfile optimization for JS apps.

View in sheet →

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Compare commandsView fixes

Related commands

Same sheet · prioritizing Common Patterns
Use multi-stage build
Build artifacts in one stage and copy only runtime output into the final stage.
OpenIn sheetdockerfilesame section
Run as non-root
Switch the runtime user away from root.
OpenIn sheetdockerfilesame section
Add health check
Define a health check command for the container.
OpenIn sheetdockerfilesame section
Use .dockerignore
Exclude unnecessary files from build context.
OpenIn sheetgitignoresame section
Copy with ownership
Copy files with explicit ownership.
OpenIn sheetdockerfilesame section
Build without cache
Rebuild all steps without using cache.
OpenIn sheetbash2 tag match