The mempool manifest + embedded catalog declared the frontend container
port as 4080, but mempool-frontend nginx listens on 8080 (the stack
creates it as -p 4080:8080 with FRONTEND_HTTP_PORT=8080, see
api/rpc/package/stacks.rs). So every reconcile rendered the quadlet as
PublishPort=4080:4080, disagreed with the working 4080:8080 container,
and restarted it ("port binding drift" -> "host port 4080 did not become
reachable within 5s" -> "host listener disappeared; restarting") in a
perpetual loop on .228. Correcting the manifest container port to 8080
makes the rendered quadlet match reality so the drift/restart loop stops.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The frontend nginx used a literal proxy_pass host with no resolver, so it
pinned mempool-api's IP at worker startup. When the backend restarts (gate,
OTA, crash, reboot re-IPAM) podman reassigns its IP and nginx keeps proxying
to the dead one -> /api hangs, websocket 502s, UI shows 'offline' until a
manual nginx reload. Same stale-upstream-IP class as the netbird 502.
Fix: mempool-frontend:v3.0.1 rewrites the generated nginx-mempool.conf to
re-resolve the backend per-request via 'resolver' + a variable proxy_pass.
Resolver address is read from /etc/resolv.conf (podman aardvark-dns answers
on the network gateway, not Docker's 127.0.0.11). Per-location path mapping
preserved (ws -> '/', /api/v1 identity via no-URI, /api/ -> /api/v1/ rewrite).
Proven on .228: backend IP change now auto-recovers with no reload; the
literal-host control still 502s. Migrated the manifest off the retired
tx1138 registry to vps2.
Also: mempool.bats #74 waited only 180s post-restart (the slow path) and
called an undefined 'fail' helper (status 127). Bumped to 300s to match the
passing parity probes and emit a real failure instead.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Added no_new_privileges: true, user: 1000, and seccomp_profile: default
to all app manifests. Created community app review checklist.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
