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open-webui: reach the LLM via the host LAN IP, not the bridge gateway

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The bridge gateway (10.89.3.1) lives in the rootless netns; llama-server
runs in the host netns, so the gateway refuses. 192.168.0.143:52625
reaches it through the rootless NAT (verified from the container).
Same LAN-IP pattern the doc already prescribes for the Dankserver
backend.
This commit is contained in:
Frank
2026-08-22 13:44:48 -07:00
parent 0951fc165c
commit c66273033b
4 changed files with 21 additions and 15 deletions
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docs/Dankclaw/OpenWebUI.md
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@@ -11,7 +11,7 @@ OpenWebUI is a self-hosted chat interface for LLMs. It connects to OpenAI-compat
| Image | `ghcr.io/open-webui/open-webui:main` (CPU build; Dankclaw is CPU-only) |
| Port | 3005 (host) → 8080 (container). Port 3000 is Gitea's HTTP, so it is not usable. |
| Data volume | `/home/dank/Containers/open-webui/data` → `/app/backend/data` |
| Default backend | vLLM on Dankclaw `:52625` = `frank-default-large` (via bridge gateway `10.89.3.1:52625`) |
| Default backend | vLLM on Dankclaw `:52625` = `frank-default-large` (via host LAN IP `192.168.0.143:52625`) |
| Network | Pinned bridge `systemd-open-webui` (`10.89.3.0/24`, gateway `10.89.3.1`) — see [History](#history) |
| Persistence | Quadlet unit `open-webui.service`; `[Install] WantedBy=default.target` |
| Deploy | `scripts/deploy-open-webui-quadlet.sh dankclaw` |
@@ -61,7 +61,7 @@ The quadlet carries a built-in healthcheck (30s interval, 3 retries, 300s start
- Use the non-CUDA image on this CPU-only host.
- The default admin account is created on first login; secure it immediately.
- If the backend is loading (3–8 minute model load), OpenWebUI shows connection errors until the model is ready.
- The LLM is reached via the bridge gateway `10.89.3.1`, not `host.containers.internal` (that name is slirp4netns-only and does not resolve on a bridge). To reach the Dankserver backend, use the LAN address `192.168.0.235:7770`.
- The LLM is reached via the host LAN IP `192.168.0.143:52625`, not the bridge gateway: the gateway (`10.89.3.1`) lives in the rootless netns, while llama-server runs in the host netns, so the gateway refuses. `host.containers.internal` is slirp4netns-only and does not resolve on a bridge either. To reach the Dankserver backend, use the LAN address `192.168.0.235:7770`.
## History