Add base kubernetes support

frontend/Dockerfile

@@ -0,0 +1,71 @@
+# Production Dockerfile for Frontend with Nginx
+# Multi-stage build for optimal size and performance
+
+# Stage 1: Build the application
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies including dev dependencies for building
+RUN npm ci --verbose && \
+    npm cache clean --force
+
+# Copy source code
+COPY . .
+
+# Build the application for production
+RUN npm run build
+
+# Stage 2: Production server with Nginx
+FROM nginx:1.25-alpine AS production
+
+# Install curl for health checks
+RUN apk add --no-cache curl
+
+# Remove default nginx configuration
+RUN rm /etc/nginx/conf.d/default.conf
+
+# Copy custom nginx configuration
+COPY nginx.conf /etc/nginx/conf.d/
+
+# Copy built application from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Nginx user already exists in the base image, just ensure proper ownership
+
+# Set proper permissions
+RUN chown -R nginx:nginx /usr/share/nginx/html && \
+    chown -R nginx:nginx /var/cache/nginx && \
+    chown -R nginx:nginx /var/log/nginx && \
+    chown -R nginx:nginx /etc/nginx/conf.d
+
+# Create nginx PID directory and fix permissions
+RUN mkdir -p /var/run/nginx /var/lib/nginx/tmp && \
+    chown -R nginx:nginx /var/run/nginx /var/lib/nginx
+
+# Custom nginx.conf for running as non-root
+RUN echo 'pid /var/run/nginx/nginx.pid;' > /etc/nginx/nginx.conf && \
+    echo 'events { worker_connections 1024; }' >> /etc/nginx/nginx.conf && \
+    echo 'http {' >> /etc/nginx/nginx.conf && \
+    echo '    include /etc/nginx/mime.types;' >> /etc/nginx/nginx.conf && \
+    echo '    default_type application/octet-stream;' >> /etc/nginx/nginx.conf && \
+    echo '    sendfile on;' >> /etc/nginx/nginx.conf && \
+    echo '    keepalive_timeout 65;' >> /etc/nginx/nginx.conf && \
+    echo '    include /etc/nginx/conf.d/*.conf;' >> /etc/nginx/nginx.conf && \
+    echo '}' >> /etc/nginx/nginx.conf
+
+# Switch to non-root user
+USER nginx
+
+# Expose port 3000 (to match current setup)
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
+  CMD curl -f http://localhost:3000/ || exit 1
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]