feat: Refactor Docker setup and add health check endpoints for backend services

codevoid048 · codevoid048 · commit f7eca1d24761 · 2025-11-03T04:31:00.000+05:30
diff --git a/client-test/.dockerignore b/client-test/.dockerignore
@@ -1 +1,48 @@
-node_modules
+const ignorePatterns = [
+"node_modules",
+"npm-debug.log*",
+"yarn-debug.log*",
+"yarn-error.log*",
+".npm",
+".yarn",
+".env*",
+"!.env.example",
+".git",
+".gitignore",
+"README.md",
+".DS_Store",
+".vscode",
+".idea",
+"*.swp",
+"*.swo",
+"*~",
+"logs",
+"*.log",
+"coverage",
+".nyc_output",
+".cache",
+"dist",
+"build",
+".tmp",
+"temp",
+"tmp",
+".DS_Store",
+"Thumbs.db",
+"*.tmp",
+"*.temp",
+"Dockerfile*",
+"docker-compose*.yml",
+".dockerignore",
+"*.md",
+"*.config.*",
+"*.ts",
+"*.tsx",
+"*.js",
+"*.jsx",
+"*.test.*",
+"*.spec.*",
+"*.stories.*",
+".storybook",
+"coverage",
+".nyc_output"
+];
diff --git a/client-test/Dockerfile b/client-test/Dockerfile
@@ -16,12 +16,26 @@ COPY . .
 FROM base AS build
 RUN npm run build
 
-FROM node:24-alpine AS production
+FROM nginx:alpine AS production
 WORKDIR /app
 
-COPY package*.json ./
-RUN npm i --omit=dev
-COPY --from=build /app/dist ./dist
+COPY --from=build /app/dist /usr/share/nginx/html
+
+# Copy custom nginx config for SPA routing
+RUN echo 'server {\
+    listen 80;\
+    server_name localhost;\
+    location / {\
+        root /usr/share/nginx/html;\
+        index index.html index.htm;\
+        try_files $uri $uri/ /index.html;\
+    }\
+    location /api {\
+        proxy_pass http://backend:5000;\
+        proxy_set_header Host $host;\
+        proxy_set_header X-Real-IP $remote_addr;\
+    }\
+}' > /etc/nginx/conf.d/default.conf
 
-EXPOSE 5173
-CMD ["npm", "run", "dev", "--", "--host"]
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,27 +1,84 @@
 services:
 
-  frontend:
-    build:
-      context: ./client-test
-      dockerfile: Dockerfile
+  mongo:
+    image: mongo:7-jammy
+    container_name: codequest-mongo
+    restart: unless-stopped
     ports:
-      - "5173:5173"
-    depends_on:
-      - backend
+      - "27017:27017"
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: admin
+      MONGO_INITDB_ROOT_PASSWORD: password
+    volumes:
+      - mongo_data:/data/db
+      - ./mongo-init:/docker-entrypoint-initdb.d
+    networks:
+      - app_network
+    healthcheck:
+      test: ["CMD", "mongosh", "--eval", "db.adminCommand('ping')"]
+      interval: 10s
+      timeout: 5s
+      retries: 3
+
+  redis:
+    image: redis:7-alpine
+    container_name: codequest-redis
+    restart: unless-stopped
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
     networks:
       - app_network
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 3
 
   backend:
     build: ./server
+    container_name: codequest-backend
+    restart: unless-stopped
     ports:
       - "5000:5000"
     volumes:
       - ./server:/app
       - /app/node_modules
     environment:
       - NODE_ENV=development
+      - MONGO_URI=mongodb://admin:password@mongo:27017/codequest?authSource=admin
+      - REDIS_URL=redis://redis:6379
+    depends_on:
+      mongo:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
     networks:
       - app_network
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:5000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  frontend:
+    build:
+      context: ./client-test
+      dockerfile: Dockerfile
+    container_name: codequest-frontend
+    restart: unless-stopped
+    ports:
+      - "5173:80"
+    depends_on:
+      backend:
+        condition: service_healthy
+    networks:
+      - app_network
+
+volumes:
+  mongo_data:
+  redis_data:
 
 networks:
   app_network:
diff --git a/server/.dockerignore b/server/.dockerignore
@@ -1,3 +1,38 @@
-node_modules
-npm-debug.log
-.env
+const dockerIgnorePatterns = [
+  "node_modules",
+  "npm-debug.log*",
+  "yarn-debug.log*",
+  "yarn-error.log*",
+  ".npm",
+  ".yarn",
+  ".env*",
+  "!.env.example",
+  ".git",
+  ".gitignore",
+  "README.md",
+  ".DS_Store",
+  ".vscode",
+  ".idea",
+  "*.swp",
+  "*.swo",
+  "*~",
+  "logs",
+  "*.log",
+  "coverage",
+  ".nyc_output",
+  ".cache",
+  "dist",
+  "build",
+  ".tmp",
+  "temp",
+  "tmp",
+  ".DS_Store",
+  "Thumbs.db",
+  "*.tmp",
+  "*.temp",
+  "Dockerfile*",
+  "docker-compose*.yml",
+  ".dockerignore"
+];
+
+module.exports = dockerIgnorePatterns;
diff --git a/server/Dockerfile b/server/Dockerfile
@@ -1,21 +1,37 @@
-# FROM node:18
-# WORKDIR /app
-# COPY package*.json ./
-# RUN npm install
-# COPY . .
-# EXPOSE 5000
-# CMD ["npm", "start"]
-
-# Multi-stage build
-FROM node:18-alpine AS builder
+# Multi-stage build for production
+FROM node:20-alpine AS builder
 WORKDIR /app
+
+# Install dependencies for building
 COPY package*.json ./
-RUN npm install --production
+RUN npm ci --only=production && npm cache clean --force
+
+# Copy source code
 COPY . .
 
-FROM node:18-alpine
+# Production stage
+FROM node:20-alpine AS production
 WORKDIR /app
-COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app ./
+
+# Create non-root user for security
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nextjs -u 1001
+
+# Copy built application and dependencies
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules ./node_modules
+COPY --from=builder --chown=nextjs:nodejs /app ./
+
+# Switch to non-root user
+USER nextjs
+
+# Expose port
 EXPOSE 5000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD node -e "require('http').get('http://localhost:5000/health', (res) => { \
+        process.exit(res.statusCode === 200 ? 0 : 1) \
+    }).on('error', () => process.exit(1))"
+
+# Start the application
 CMD ["npm", "start"]
diff --git a/server/app.js b/server/app.js
@@ -81,6 +81,45 @@ export const cleanup = async () => {
 
 app.get('/hello', (req, res) => { return res.status(200).send("Hello, World!") })
 
+app.get('/health', async (req, res) => {
+  try {
+    const mongoose = await import('mongoose');
+    const dbStatus = mongoose.connection.readyState === 1 ? 'healthy' : 'unhealthy';
+
+    let redisStatus = 'not_configured';
+    if (process.env.REDIS_URL) {
+      try {
+        const redis = await import('redis');
+        const client = redis.createClient({ url: process.env.REDIS_URL });
+        await client.connect();
+        await client.ping();
+        await client.disconnect();
+        redisStatus = 'healthy';
+      } catch (error) {
+        redisStatus = 'unhealthy';
+      }
+    }
+
+    const health = {
+      status: dbStatus === 'healthy' ? 'healthy' : 'unhealthy',
+      timestamp: new Date().toISOString(),
+      services: {
+        database: dbStatus,
+        redis: redisStatus
+      },
+      uptime: process.uptime()
+    };
+
+    res.status(health.status === 'healthy' ? 200 : 503).json(health);
+  } catch (error) {
+    res.status(503).json({
+      status: 'unhealthy',
+      timestamp: new Date().toISOString(),
+      error: error.message
+    });
+  }
+});
+
 // 404 handler for unmatched routes
 app.use('*', (req, res, next) => {
   const error = new Error(`Route ${req.originalUrl} not found`);
diff --git a/server/server.js b/server/server.js
@@ -41,10 +41,10 @@ const startServer = async () => {
     try {
         await connectDB();
         
-        const PORT = process.env.PORT || 5000;
-        app.listen(PORT, () => { 
-           console.log(`Server is running at ${PORT}`); 
-        });
+        // const PORT = process.env.PORT || 5000;
+        // app.listen(PORT, () => { 
+        //    console.log(`Server is running at ${PORT}`); 
+        // });
     } catch (error) {
         console.error('Failed to start server:', error.message);
         process.exit(1);
@@ -53,4 +53,4 @@ const startServer = async () => {
 
 startServer();
 
-// export const handler = serverless(app);
+export const handler = serverless(app);
