Fix noVNC WebSocket routing

DOKPLOY_DEPLOY.md

@@ -17,7 +17,9 @@ The bot has been updated to support automated login using environment variables.
         *   `OPENROUTER_API_KEY`: Your OpenRouter API key.
         *   `REDDIT_USERNAME`: Your Reddit username.
         *   `REDDIT_PASSWORD`: Your Reddit password.
-        *   `BROWSER_HEADLESS`: `true` (Important for server environments).
+        *   `BROWSER_HEADLESS`: `false` (required for interactive noVNC login).
+        *   `VNC_PASSWORD`: A strong password for the interactive VNC session.
+        *   `NOVNC_PUBLIC_URL`: `http://<dokploy-host>:16080`.
 
 3.  **Volumes (Persistence)**:
     *   The `docker-compose.yml` is already configured to mount a `./data` volume.
@@ -28,6 +30,19 @@ The bot has been updated to support automated login using environment variables.
     *   Push your code to your Git repository connected to Dokploy.
     *   Click "Deploy".
 
+## noVNC networking
+
+The Compose configuration publishes noVNC directly on host port `16080`.
+Do not route it through a Dokploy/Traefik domain: the upstream proxy strips
+the WebSocket Upgrade request that noVNC requires, producing `rfb.js:688` with
+WebSocket code `1011` and “Failed to connect to downstream server”.
+
+Set `NOVNC_PUBLIC_URL` to `http://<dokploy-host>:16080`, then open that URL in
+a separate tab from the dashboard. If the dashboard itself is HTTPS, browsers
+will not embed this HTTP endpoint in its iframe; the separate-tab link is the
+intended route. Restrict inbound TCP `16080` at the Dokploy host firewall to
+your own IP or VPN subnet.
+
 ## How it works
 
 1.  On the first run, the bot will see the `data/browser-session` folder is empty/invalid.

docker-compose.yml

@@ -15,11 +15,14 @@ services:
     # path on every restart.
     volumes:
       - reddit_bot_data:/app/data
-    # Ports are NOT published to the host. Dokploy/Traefik routes traffic
+    # The dashboard goes through Traefik. noVNC must bypass the upstream
-    # to the container's internal ports via configured domains.
+    # proxy because it strips WebSocket Upgrade requests needed by websockify.
+    # Restrict host port 16080 with the host firewall; VNC_PASSWORD still
+    # authenticates the VNC session.
+    ports:
+      - "16080:6080"
     expose:
       - "3000"   # Web dashboard
-      - "6080"   # noVNC for human login
     environment:
       - OPENROUTER_API_KEY=${OPENROUTER_API_KEY}
       # Required whenever the web dashboard is enabled; never commit its value.
@@ -30,8 +33,9 @@ services:
       - BROWSER_HEADLESS=false
       # Required to lock down the VNC endpoint.
       - VNC_PASSWORD=${VNC_PASSWORD}
-      # Public Traefik route used by the dashboard's recovery button.
+      # Direct noVNC URL, e.g. http://<dokploy-host>:16080. It must not go
-      - NOVNC_PUBLIC_URL=https://red-vnc.apps.jbrunton.co.uk
+      # through the WebSocket-stripping reverse proxy.
+      - NOVNC_PUBLIC_URL=${NOVNC_PUBLIC_URL}
 
 volumes:
   reddit_bot_data:

tests/docker-compose.test.ts

@@ -0,0 +1,12 @@
+import { readFile } from 'node:fs/promises';
+import { describe, expect, it } from 'vitest';
+
+describe('Dokploy noVNC deployment configuration', () => {
+  it('publishes noVNC directly and leaves its public URL deployment-configured', async () => {
+    const compose = await readFile(new URL('../docker-compose.yml', import.meta.url), 'utf8');
+
+    expect(compose).toMatch(/ports:\s*\r?\n\s*- "16080:6080"/);
+    expect(compose).toMatch(/NOVNC_PUBLIC_URL=\$\{NOVNC_PUBLIC_URL\}/);
+    expect(compose).not.toContain('https://red-vnc.apps.jbrunton.co.uk');
+  });
+});