Adds healthcheck to quiz + adds image to build

.github/workflows/create-branch-images.yml

@@ -103,4 +103,35 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
+          cache-to: type=gha,mode=max
+  build-quizroom:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata for Quizroom Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}-quizroom
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+      - name: Build and push Quizroom Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./quizRoom
+          push: ${{ github.event_name != 'pull_request' }}
+          platforms: linux/amd64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
           cache-to: type=gha,mode=max

docker-compose.local.yaml

@@ -37,7 +37,7 @@ services:
       - quiz_network
     restart: always
 
-  quizroom:
+  quizroom: # Forces image to update
     build:
       context: ./quizRoom
       dockerfile: Dockerfile

nginx/conf.d/local.conf

@@ -1,60 +0,0 @@
-js_import njs/main.js;
-js_set $quiz_room_host main.getQuizRoomHost;
-
-map $http_upgrade $connection_upgrade {
-    default upgrade;
-    ''      close;
-}
-
-# Cache for room information
-# keyval_zone zone=rooms:10m;
-# keyval_zone zone=room_hosts:10m;
-# keyval $room_id $room_info zone=rooms;
-
-upstream frontend {
-    server localhost:5173;
-}
-
-upstream backend {
-    server localhost:3000;
-}
-
-server {
-    listen 80;
-
-    location /api {
-        rewrite /backend/(.*) /$1 break;
-        proxy_pass http://backend;
-    }
-
-    location /socket.io {
-        rewrite /backend/(.*) /$1 break;
-        proxy_pass http://backend;
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection "Upgrade";
-        proxy_set_header Host $host;
-        proxy_hide_header 'Access-Control-Allow-Origin';
-    }
-
-    location /quiz/([^/]+)/socket {
-        # Routing logic
-        set $room_id $1;
-        js_content main.routeWebSocket;
-
-        #Proxy headers
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection $connection_upgrade;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_read_timeout 3600s;
-        proxy_send_timeout 3600s;
-        proxy_buffering off;
-    }
-
-    location / {
-        proxy_pass http://frontend;
-    }
-
-}

quizRoom/.dockerignore

@@ -0,0 +1,2 @@
+Dockerfile
+docker-compose.yml

quizRoom/Dockerfile

@@ -1,6 +1,10 @@
 # Use the Node base image
 FROM node:18 AS quizroom
 
+ARG PORT=4500
+ENV PORT=${PORT}
+ENV ROOM_ID=${ROOM_ID}
+
 # Create a working directory
 WORKDIR /usr/src/app
 
@@ -15,7 +19,11 @@ COPY . .
 RUN npm run build
 
 # Expose WebSocket server port
-EXPOSE 4500
+EXPOSE ${PORT}
+
+# Add healthcheck
+HEALTHCHECK --interval=30s --timeout=30s --start-period=30s --retries=3 \
+  CMD /usr/src/app/healthcheck.sh
 
 # Start the server using the compiled JavaScript file
 CMD ["node", "dist/app.js"]

quizRoom/app.ts

@@ -2,18 +2,42 @@ import http from "http";
 import { Server, ServerOptions } from "socket.io";
 import { setupWebsocket } from "./socket/setupWebSocket";
 import dotenv from "dotenv";
+import express from 'express';
 
 // Load environment variables
 dotenv.config();
 
-const port = 4500;
+const port = process.env.PORT || 4500;
-const roomId = process.env.ROOM_ID; // Load roomId from environment variable
+const roomId = process.env.ROOM_ID;
 console.log(`I am: /api/room/${roomId}/socket`);
 
-// Create HTTP and WebSocket server
+// Create Express app for health check
-const server = http.createServer();
+const app = express();
+const server = http.createServer(app);
+
+// Health check endpoint
+app.get('/health', (_, res) => {
+  try {
+    if (io.engine?.clientsCount !== undefined) {
+      res.status(200).json({
+        status: 'healthy',
+        path: `/api/room/${roomId}/socket`,
+        connections: io.engine.clientsCount,
+        uptime: process.uptime()
+      });
+    } else {
+      throw new Error('Socket.io server not initialized');
+    }
+  } catch (error: Error | any) {
+    res.status(500).json({
+      status: 'unhealthy',
+      error: error.message
+    });
+  }
+});
+
 const ioOptions: Partial<ServerOptions> = {
-  path: `/api/room/${roomId}/socket`, // Use roomId from env variable
+  path: `/api/room/${roomId}/socket`,
   cors: {
     origin: "*",
     methods: ["GET", "POST"],
@@ -28,4 +52,4 @@ setupWebsocket(io);
 
 server.listen(port, () => {
   console.log(`WebSocket server is running on port ${port}`);
-});
+});

quizRoom/docker-compose.yml

@@ -0,0 +1,19 @@
+version: '3.8'
+
+services:
+  quizroom:
+    build:
+      context: .
+      args:
+        - PORT=${PORT:-4500}
+    ports:
+      - "${PORT:-4500}:${PORT:-4500}"
+    environment:
+      - PORT=${PORT:-4500}
+      - ROOM_ID=${ROOM_ID}
+    healthcheck:
+      test: curl -f http://localhost:${PORT:-4500}/health || exit 1
+      interval: 30s
+      timeout: 30s
+      retries: 3
+      start_period: 30s

quizRoom/healthcheck.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+curl -f "http://0.0.0.0:${PORT}/health" || exit 1

quizRoom/package.json

@@ -17,8 +17,8 @@
     "typescript": "^5.6.3"
   },
   "dependencies": {
-    "@valkey/valkey-glide": "^1.1.0",
     "dotenv": "^16.4.5",
+    "express": "^4.21.1",
     "http": "^0.0.1-security",
     "socket.io": "^4.8.1"
   }

quizRoom/socket/.env.example

@@ -0,0 +1,2 @@
+ROOM_ID=123456
+PORT=4500