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>
45 lines
828 B
YAML
45 lines
828 B
YAML
app:
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id: archy-mempool-web
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name: Mempool Web
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version: 3.0.1
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description: Frontend web UI for mempool explorer.
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container_name: mempool
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container:
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image: 146.59.87.168:3000/lfg2025/mempool-frontend:v3.0.1
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pull_policy: if-not-present
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network: archy-net
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dependencies:
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- app_id: mempool-api
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version: ">=3.0.0"
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resources:
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memory_limit: 512Mi
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security:
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capabilities: []
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readonly_root: false
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network_policy: isolated
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ports:
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- host: 4080
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container: 8080
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protocol: tcp
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environment:
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- FRONTEND_HTTP_PORT=8080
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- BACKEND_MAINNET_HTTP_HOST=mempool-api
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health_check:
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type: http
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endpoint: http://localhost:8080
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path: /
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interval: 30s
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timeout: 5s
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retries: 3
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bitcoin_integration:
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rpc_access: none
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sync_required: false
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