The dockurr/strfry image listens on 7777 (not 8080) and its default config
demands a 1M NOFILES rlimit — above the rootless user-manager hard cap
(524288), so the relay exited at startup even with the mount fixed. Ship
the config declaratively (manifest files: + ro bind at /etc/strfry.conf)
with nofiles = 0; this also skips the entrypoint's copy into /etc, which a
readonly_root container cannot perform. Verified end-to-end on .228 in a
quadlet-equivalent systemd-run environment: active, GET / and /health 200.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>