fix(agent-bot): run as non-root bun user - #42
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davidmckayv merged 1 commit intoAug 20, 2026
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Drop root in the container so a compromised process cannot own the whole container filesystem (CWE-250). Files copied with --chown=bun:bun and /app is chowned before the USER switch so bun install still writes node_modules. Closes CopilotKit#39
zopeVaibhav
requested review from
MikeRyanDev,
davidmckayv,
guidovizoso and
tylerslaton
as code owners
August 20, 2026 09:11
davidmckayv
approved these changes
Aug 20, 2026
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Summary
USER buntoagent-bot/Dockerfileso the container process no longer runs as root (CWE-250)./appand useCOPY --chown=bun:bunso bun install and runtime file access still work after the user switch.Verification
Built the image and confirmed:
idinside container returnsuid=1000(bun).whoamireturnsbun; writes to/etcand/rootare denied./healthreturns{"status":"ok",...}andPOST /ag-uireturns 200.User=bun,Cmd=[bun agent-bot/src/index.ts], port 4200 exposed.--read-onlyrootfs + tmpfs/tmp.Closes #39