[CI/Build] Optimize Docker image size by excluding test and example files (#615)

[ikaadil]

…d examples

FILL IN THE PR DESCRIPTION HERE

FIX issues #615

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[gemini-code-assist]

Summary of Changes

Hello @ikaadil, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request aims to enhance the efficiency of our CI/Build pipeline by optimizing the Docker image creation process. My primary goal is to reduce the size of the generated Docker images by ensuring that only necessary production code is included, thereby improving build times and deployment footprint.

Highlights

• Docker Image Optimization: I've updated the docker/Dockerfile and docker/Dockerfile.kvaware to optimize the build process. Instead of copying the entire src/ directory, the Dockerfiles now selectively copy only the essential production code directories: src/vllm_router/ and src/gateway_inference_extension/.
• Build Efficiency: This change is intended to significantly reduce the final Docker image size by excluding non-production assets such as test files and examples. A smaller image size contributes to faster image builds, quicker deployments, and reduced storage requirements.

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[gemini-code-assist]

Code Review

This pull request optimizes the Docker image size by explicitly copying only production source directories and excluding test files. The change is effective but could be made more maintainable by using a .dockerignore file instead. I've suggested this approach in the comments on both Dockerfiles.

[ikaadil]

@zerofishnoodles Could you please review the PR?

[kobe0938]

Can you show the size difference?