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mcp: run image as numeric non-root user - #94
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The mcp image created a non-root user but never set USER, so the container still ran as root. Set USER to the numeric UID 14000 and align the user with the root image's doc2vec:14000 account. A numeric USER lets kubelet enforce runAsNonRoot and lets downstream charts (such as kagent's querydoc subchart) drop their runAsUser pin. Signed-off-by: Sarthak Bhardwaj <[email protected]>
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- #94 mcp: run image as numeric non-root user 14000 - #134 chore(deps): upgrade cheerio, chonkie, sqlite-vec and the S3 client Signed-off-by: Denis Jannot <[email protected]> Co-authored-by: Claude Opus 5.5 <[email protected]>
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What
mcp/Dockerfilecreates a non-root user but never setsUSER, so the container runs as root. This setsUSERto the numeric UID14000and aligns the runtime user with the root image'sdoc2vec:14000account.Why
With no
USER, the image runs as root, which forces consumers to pinrunAsUserin their pod spec and blocks rootless or OpenShift-style deployments. A numericUSERlets kubelet verifyrunAsNonRootat admission time (a non-numeric username cannot be checked). It also lets downstream charts, such as kagent'squerydocsubchart that pulls this image, drop theirrunAsUserpin.How verified
Built with buildx and ran the image:
docker run --entrypoint idreportsuid=14000(doc2vec) gid=14000(doc2vec)docker inspect -f '{{.Config.User}}'reports14000/appand/app/buildare owned bydoc2vec, and the runtime user can write to/app/build(needed for SQLite journal/WAL files)