better host address

.env.example

@@ -3,4 +3,4 @@ HUE_APPLICATION_KEY=replace-with-your-hue-application-key
 HUE_VERIFY_TLS=false
 COLLECT_INTERVAL_SECONDS=30
 LOG_LEVEL=INFO
-
+PUBLISH_ADDRESS=0.0.0.0

README.md

@@ -37,9 +37,9 @@ available.
    # Edit .env with the bridge IP and application key.
    docker compose up --build -d
    ```
-4. Open [Grafana](http://localhost:3000) and sign in with `admin` / `admin`. The
+4. Open Grafana at `http://HOST_LAN_IP:3000` and sign in with `admin` / `admin`. The
    dashboard is in the **Hue** folder. Change this development password if the port
-   will ever be exposed beyond localhost.
+   is reachable by anyone else on your network.
 
 Useful local endpoints:
 
@@ -47,7 +47,11 @@ Useful local endpoints:
 - VictoriaMetrics UI: <http://localhost:8428/vmui/>
 - Grafana: <http://localhost:3000>
 
-All published ports bind to `127.0.0.1`. Named Docker volumes retain metrics and
+By default, published ports bind to `0.0.0.0`, making them reachable through the
+host's `192.168.178.x` address. Docker cannot bind to a wildcard subnet such as
+`192.168.178.*`; to listen only on the LAN interface, set `PUBLISH_ADDRESS` in `.env`
+to the host's exact address, for example `192.168.178.42`. Ensure your host firewall
+permits access only from trusted networks. Named Docker volumes retain metrics and
 Grafana state across restarts. TLS verification is off by default because Hue bridges
 normally use a self-signed certificate; set `HUE_VERIFY_TLS=true` if yours has a
 trusted certificate.

docker-compose.yml

@@ -9,7 +9,7 @@ services:
       COLLECT_INTERVAL_SECONDS: ${COLLECT_INTERVAL_SECONDS:-30}
       LOG_LEVEL: ${LOG_LEVEL:-INFO}
     ports:
-      - "127.0.0.1:8000:8000"
+      - "${PUBLISH_ADDRESS:-0.0.0.0}:8000:8000"
     healthcheck:
       test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/healthz')"]
       interval: 30s
@@ -27,7 +27,7 @@ services:
       - victoria-metrics-data:/victoria-metrics-data
       - ./config/victoriametrics/scrape.yml:/etc/victoriametrics/scrape.yml:ro
     ports:
-      - "127.0.0.1:8428:8428"
+      - "${PUBLISH_ADDRESS:-0.0.0.0}:8428:8428"
     depends_on:
       - hue-collector
 
@@ -43,7 +43,7 @@ services:
       - ./config/grafana/provisioning:/etc/grafana/provisioning:ro
       - ./config/grafana/dashboards:/var/lib/grafana/dashboards:ro
     ports:
-      - "127.0.0.1:3000:3000"
+      - "${PUBLISH_ADDRESS:-0.0.0.0}:3000:3000"
     depends_on:
       - victoriametrics