Update Dockerfile

Dockerfile

@@ -1,28 +1,61 @@
-# Use Playwright's official image (comes with browsers pre-installed)
-FROM mcr.microsoft.com/playwright:v1.40.0-jammy
-
-# Install Node.js if not already included
-RUN apt-get update && apt-get install -y nodejs npm \
+# Use official Node.js 18 slim image
+FROM node:18-slim
+
+# Set environment variables for Puppeteer
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
+    PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium
+
+# Install only essential dependencies in a single layer
+RUN apt-get update && apt-get install -y \
+    chromium \
+    fonts-liberation \
+    libappindicator3-1 \
+    libasound2 \
+    libatk-bridge2.0-0 \
+    libatk1.0-0 \
+    libcups2 \
+    libdbus-1-3 \
+    libdrm2 \
+    libgbm1 \
+    libgtk-3-0 \
+    libnspr4 \
+    libnss3 \
+    libx11-xcb1 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxrandr2 \
+    libxss1 \
+    libxtst6 \
+    xdg-utils \
+    --no-install-recommends \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
+# Set working directory
 WORKDIR /app
 
-# Copy package files
+# Copy package files first (better layer caching)
 COPY package*.json ./
 
-# Install dependencies
+# Install dependencies with production flag and clean npm cache
 RUN npm ci --only=production && npm cache clean --force
 
-# Copy source code
+# Copy only necessary source code files
 COPY . .
 
-# Create non-root user
+# Create non-root user for security
 RUN groupadd -r nodeuser && useradd -r -g nodeuser nodeuser \
     && chown -R nodeuser:nodeuser /app
 
+# Switch to non-root user
 USER nodeuser
 
+# Expose port
 EXPOSE 5000
 
-CMD ["node", "server.js"]
+# Health check (optional but recommended)
+HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
+    CMD node -e "require('http').get('http://localhost:5000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
+
+# Start the server
+CMD ["npm", "start"]