feat: initial implementation of container management platform

Dockerfile.frontend

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+# Build stage
+FROM node:20-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci && npm install --save-dev terser
+
+# Copy source code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Production stage
+FROM nginx:alpine
+
+# Copy custom nginx config
+COPY nginx.conf /etc/nginx/nginx.conf
+
+# Copy built assets from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Create non-root user
+RUN addgroup -g 1001 -S appgroup && \
+    adduser -u 1001 -S appuser -G appgroup
+
+# Change ownership of nginx directories
+RUN chown -R appuser:appgroup /usr/share/nginx/html && \
+    chown -R appuser:appgroup /var/cache/nginx && \
+    chown -R appuser:appgroup /var/log/nginx && \
+    chown -R appuser:appgroup /etc/nginx/conf.d
+
+# Create nginx PID directory
+RUN touch /var/run/nginx.pid && \
+    chown -R appuser:appgroup /var/run/nginx.pid
+
+# Switch to non-root user
+USER appuser
+
+# Expose port
+EXPOSE 80
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:80 || exit 1
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]