Copy files from the build context into the image.
Section: Dockerfile Basics
Copy files into image
dockerfile
dockerfile
COPY package*.json ./Explanation
Use `.dockerignore` to keep build contexts lean.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Dockerfile Basics
Use WORKDIR instruction
Set the working directory for subsequent instructions.
Set default command
Set the default command when the container starts.
Document a listening port
Document the port the application listens on.