1e4c238 fixed README; the same claim lived in three more places, all wrong
since pi-studio 0.9.60 added /studio --listen-all:
- rootfs/usr/local/bin/studio-expose header (and so its --help; the sed range
grows 2,31p -> 2,35p so --help still ends at "runs it backgrounded.")
- pi-devbox-environment skill section 7: --listen-all as a third path, plus the
0.10 whole-URL / 409 / "link looks damaged" notes, the published-port rule,
--stop before --port, and the on-host curl 403-vs-empty-reply diagnostic
- Dockerfile.variant STUDIO_PORT comment
Bridge and --listen-all on one port: whichever starts second fails, measured
both ways on tor-ms22 (v1.11.2): Studio "listen EADDRINUSE ... 0.0.0.0:8765"
with the bridge up; studio-expose rc 1 on socat "bind(...): Address already in
use" with a 0.0.0.0 listener up. README's warning now says both directions.
Cost: studio-expose and the skill are in rootfs/, which base_tag hashes, so the
next release rebuilds the base (recomputed with the CI recipe: base-6f3b20266de1
at 1e4c238 -> base-26d425cea6c2 now). Noted in the CHANGELOG Unreleased entry.
No pin changes. lint-shell, dockerfile-directives and base-hash guards pass;
check-doc-drift is red only for the unrelated pi-extensions 750b2a8 -> 0d8e417.
pi-studio binds the container's 127.0.0.1, which a published Docker port
can't reach. Add a robust, portable bridge rather than a doc-only one-liner:
- Dockerfile.base: add socat (~1 MB, generally useful TCP relay).
- rootfs/usr/local/bin/studio-expose: socat TCP relay listening on the
container's egress IPv4 (not 0.0.0.0 — that would EADDRINUSE against
Studio's loopback listener) forwarding to 127.0.0.1:PORT on the SAME
port, so Studio's printed token URL works verbatim. Robust egress-IP
detection (hostname -I, loopback-filtered; ip route get fallback),
--help, port validation, foreground.
- entrypoint-user.sh: opt-in STUDIO_EXPOSE=1 auto-starts the bridge in the
background (studio variant only). Default OFF — Studio stays loopback-only
(its secure default) unless explicitly opted in.
- README: 'Using pi-studio' now documents host-networking (A) and the
studio-expose/STUDIO_EXPOSE bridge (B) with a security note; ssh -L for
remote, mosh caveat retained.
- smoke-test: assert socat + studio-expose present (base-level).
- CHANGELOG/AGENTS updated.
No tag — stopping for review.