Explain why ca-certificates is required in the Dockerfile#50
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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 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 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-Dockerfile
ca-certificatescomment to 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 repos so they stay aligned:
pkg/agentfs/examples/node.Dockerfileexamples/src/Dockerfile-example