Slim precommit image

[samzong]

- latest             912d04c9f776   3 weeks ago     3.58GB
+ clean-final        6447339bfe93   6 minutes ago   2.75GB

---

Record some...

FILL IN THE PR DESCRIPTION HERE

FIX #693 (link existing issues this PR will resolve)

BEFORE SUBMITTING, PLEASE READ THE CHECKLIST BELOW AND FILL IN THE DESCRIPTION ABOVE

---

• Make sure the code changes pass the pre-commit checks.
• Sign-off your commit by using -s when doing git commit
• Try to classify PRs for easy understanding of the type of changes, such as [Bugfix], [Feat], and [CI].

Detailed Checklist (Click to Expand)

Thank you for your contribution to semantic-router! Before submitting the pull request, please ensure the PR meets the following criteria. This helps us maintain the code quality and improve the efficiency of the review process.

PR Title and Classification

Please try to classify PRs for easy understanding of the type of changes. The PR title is prefixed appropriately to indicate the type of change. Please use one of the following:

• [Bugfix] for bug fixes.
• [CI/Build] for build or continuous integration improvements.
• [Doc] for documentation fixes and improvements.
• [Feat] for new features in the cluster (e.g., autoscaling, disaggregated prefill, etc.).
• [Router] for changes to the vllm_router (e.g., routing algorithm, router observability, etc.).
• [Misc] for PRs that do not fit the above categories. Please use this sparingly.

Note: If the PR spans more than one category, please include all relevant prefixes.

Code Quality

The PR need to meet the following code quality standards:

• Pass all linter checks. Please use pre-commit to format your code. See README.md for installation.
• The code need to be well-documented to ensure future contributors can easily understand the code.
• Please include sufficient tests to ensure the change is stay correct and robust. This includes both unit tests and integration tests.

DCO and Signed-off-by

When contributing changes to this project, you must agree to the DCO. Commits must include a Signed-off-by: header which certifies agreement with the terms of the DCO.

Using -s with git commit will automatically add this header.

What to Expect for the Reviews

[netlify]

✅ Deploy Preview for vllm-semantic-router ready!

Name	Link
🔨 Latest commit	a8a3d62
🔍 Latest deploy log	https://app.netlify.com/projects/vllm-semantic-router/deploys/691ed9aecd29c50008cd2d27
😎 Deploy Preview	https://deploy-preview-701--vllm-semantic-router.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[github-actions]

👥 vLLM Semantic Team Notification

The following members have been identified for the changed files in this PR and have been automatically assigned:

📁 Root Directory

Owners: @rootfs, @Xunzhuo
Files changed:

• Dockerfile.precommit

---

🎉 Thanks for your contributions!

This comment was automatically generated based on the OWNER files in the repository.

[rootfs]

@yuluo-yx

[samzong]

use dive

[samzong]

@Xunzhuo @rootfs @yuluo-yx

After a while of trying, it's hard to meet my expectations; would like to ask for advice.

I’ve squeezed the pre-commit image from 3.58 GB to 2.75 GB, but any further cuts start breaking Go/Rust checks.

To keep all Go/Rust hooks and still slim meaningfully, the only practical option is to run Go/Rust hooks via separate language: docker_image entries, each pointing to a minimal go (gofmt + golangci-lint) and rust (cargo + rustfmt + toolchain) image. The main pre-commit image would then keep only Python linters + markdownlint + shellcheck.

This should shave off a few size and speed pulls/builds, at the cost of maintaining two small images and slightly more config.

If you agree that I can implement the separation of images in this PR; or accept the current situation, I will focus my energy on other matters.

[yuluo-yx]

emm~ I don't think it's necessary; it would only make submitting a PR more difficult. 🤔