Explain why ca-certificates is required in the Node Dockerfile template#849
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aryeila wants to merge 1 commit into
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Explain why ca-certificates is required in the Node Dockerfile template#849aryeila wants to merge 1 commit into
aryeila wants to merge 1 commit into
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The previous comment ("enables TLS/SSL for securely fetching dependencies")
implied this is generic Docker hygiene that could be skipped to shave layers.
That framing is misleading: @livekit/rtc-node ships a native Rust core that
reads the system trust store via rustls-tls-native-roots, not Node's bundled
CA roots. node:22-slim doesn't ship /etc/ssl/certs/ca-certificates.crt, so
without ca-certificates Room.connect() fails with the misleading
"failed to retrieve region info" error.
Rewrite the in-template comment to name the cause so a developer trimming the
image knows the line is load-bearing. No functional change.
This was referenced May 27, 2026
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Overview
Rewrite the in-template
ca-certificatescomment inpkg/agentfs/examples/node.Dockerfileto explain why the line is load-bearing. No functional change.@livekit/rtc-nodeships a native Rust core that reads the system trust store viarustls-tls-native-roots, not Node's bundled CA roots.node:22-slimdoesn't ship/etc/ssl/certs/ca-certificates.crt, so withoutca-certificatesinstalled,Room.connect()fails with the misleadingfailed to retrieve region infoerror. The previous comment ("enables TLS/SSL for securely fetching dependencies") implied this was generic Docker hygiene that could be trimmed.End-to-end Docker repro confirms the failure mode (slim Node without
ca-certificatesreproduces the exact error string from livekit/agents-js#932) and the fix.Context
Filed against DOCS-1454.
Related PRs
The same comment rewrite is applied across the docs partial and sibling starter/example projects so they stay aligned:
Dockerfileexamples/src/Dockerfile-example