BusyBox wget (+ node/python/curl one-shots, incl mealie's socket tuple) resolve
localhost -> IPv6 ::1 with no cross-family fallback; an IPv4-only-binding app
reads docker-unhealthy while serving (vaultwarden, re-run 2026-07-06). Escalates
that instance to the class. Scoped strictly to healthcheck test: lines
(diff-reviewed: no env/config/label changed; .felhom.yml already clean). New
REUSE.md convention row.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
Address security review: reverting to root removed the user:1000 boundary, so add
security_opt no-new-privileges:true to block SUID-based escalation. Full cap_drop
is intentionally NOT applied — the images' root-init needs CHOWN/SETUID/SETGID to
set up /config and /metadata (dropping them reproduces the crash we hit at user:1000).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Live try-then-fallback: pinning user 1000:1000 crash-loops both — their named
config/metadata volumes are Docker-created root-owned and the pinned process can't
write them (komga: SQLite /config open fails; audiobookshelf: EACCES mkdir
/metadata/logs; neither has a PUID-style root-init chown). Reverted to root; they
rely on the setgid 2775 userdata dirs (files land group 1000 → FileBrowser browses/reads).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
All 51 docker-compose.yml: replaced hardcoded subdomain.${DOMAIN}
with ${SUBDOMAIN}.${DOMAIN} in Traefik labels, app env vars, and
comments.
All 51 .felhom.yml: added SUBDOMAIN deploy field (type: subdomain)
with default matching existing subdomain metadata value.
Works with felhom-controller v0.27.0 which validates and stores the
user-chosen subdomain in app.yaml. Existing deployed apps get
SUBDOMAIN auto-injected via InjectMissingFields() on next sync.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>