Document live GitOps production deployment

CLAUDE.md

@@ -29,12 +29,17 @@ Docker runs alongside local dev on different ports:
 The image does not set `BTCDATA_URL`; deployments must provide it. `BUILD_SHA` is embedded as
 `APP_VERSION` and exposed at `/api/version`. The port in `CMD` is hardcoded to 4040.
 
-## CI/CD
+## CI/CD and production
 
-`.gitea/workflows/build.yml` tests pushes to `main` and `v*` tags, then publishes immutable
-linux/amd64 images to `harbor.pmagnus.cloud/btcprice/btcprice`. It embeds the short Git SHA as
-`APP_VERSION`. CI has no Kubernetes credentials; the planned Flux deployment belongs in
-`magnus/deploy` once the shared GitOps gate is complete.
+`.gitea/workflows/build.yml` tests pushes to `main` and `v*` tags on the `anvil` Gitea Actions
+runner, then publishes immutable linux/amd64 images to
+`harbor.pmagnus.cloud/btcprice/btcprice`. It embeds the short Git SHA as `APP_VERSION`.
+
+Flux image automation updates the manifests in the separate `magnus/deploy` repository and Flux
+reconciles k3s. CI has no Kubernetes credentials. Production runs two replicas—one on hostinger and
+one on citadel—and is served at https://btcprice.k8s.pmagnus.cloud through ingress-nginx and
+hostinger Traefik TLS. Deployment changes belong in `../deploy/apps/btcprice`; do not deploy with
+Compose or manual `kubectl apply`.
 
 ## Legacy deployment
 
@@ -46,7 +51,7 @@ Mirrors `../elprice/deploy-citadel.sh`; no registry.
 - btcdata also runs on citadel, so both attach to the external `btc-network` there and
   `BTCDATA_URL` is `http://btcdata:4102` (service name, not a LAN address). The deploy script
   creates the network on the remote if it is missing.
-- Live at http://192.168.50.195:4041.
+- Temporary migration fallback at http://192.168.50.195:4041; it is not the production endpoint.
 
 ## Architecture
 

README.md

@@ -52,6 +52,24 @@ SHA, available from `/api/version`.
 The workflow requires the repository secrets `HARBOR_ROBOT_USER` and `HARBOR_ROBOT_TOKEN`. It only
 pushes images and intentionally has no Kubernetes credentials.
 
+## Production deployment
+
+Production is GitOps-managed at **https://btcprice.k8s.pmagnus.cloud**:
+
+```text
+git push → Gitea Actions on anvil → Harbor → Flux → k3s → ingress-nginx → Traefik TLS
+```
+
+Flux image automation commits the newest approved `main-<UTC timestamp>` image to the separate
+`magnus/deploy` repository. The manifests are in `../deploy/apps/btcprice`, and two replicas run with
+one pod on each k3s node. CI never receives cluster credentials. Do not deploy production with
+Docker Compose or manual `kubectl apply`; rollback by reverting the immutable image change in the
+GitOps repository.
+
+btcdata remains an external dependency running on citadel. Kubernetes represents it with a
+selectorless Service and EndpointSlice, so pods use `http://btcdata:4102` without embedding its IP in
+the Deployment.
+
 ## Legacy deployment (citadel)
 
 ```bash
@@ -64,8 +82,9 @@ architecture (citadel is x86_64 → `linux/amd64`), copies `docker-compose.citad
 pipes the image over SSH with `docker save | docker load`, and runs
 `docker compose up -d --no-build`. No registry involved.
 
-Deployed btcprice listens on **http://192.168.50.195:4041** and proxies to the btcdata running
-on citadel as well. Both attach to the external `btc-network` there, so `BTCDATA_URL` is
+The temporary migration fallback listens on **http://192.168.50.195:4041** and proxies to the
+btcdata running on citadel as well. It is retained only for the validation/rollback window; the
+Kubernetes hostname is the production endpoint. Both attach to the external `btc-network` there, so `BTCDATA_URL` is
 `http://btcdata:4102` (set in `.env.citadel`) — the service name inside the network, not a LAN
 address. The deploy script creates `btc-network` on the host if it does not exist yet.
 

btc-price-deploy.md

@@ -1,5 +1,10 @@
 # btcprice GitOps migration plan
 
+**Status (2026-09-15):** Phases 1–6 implemented and verified. The GitOps deployment is live with
+one Ready replica on each k3s node, trusted TLS, working HTTP/WebSockets, and a successful unattended
+source-to-production update. Compose remains online for the required 24-hour validation/rollback
+window; Phase 7 is intentionally pending.
+
 **Target path**
 
 ```text