optimize docckerfile

Dockerfile

@@ -1,14 +1,38 @@
-FROM node:lts AS build
+# Build stage
+FROM node:lts-alpine AS build
 WORKDIR /app
 
-# Copy package files first to leverage cache
+# Install dependencies first to leverage Docker cache
 COPY package*.json ./
-RUN npm ci
+RUN npm ci --no-audit --no-fund --production && \
+    npm cache clean --force
 
-# Copy remaining files
+# Copy source code and build
 COPY . .
 RUN npm run build
 
-FROM httpd:2.4 AS runtime
+# Runtime stage
+FROM httpd:2.4-alpine AS runtime
+
+# Copy custom httpd config if needed
+# COPY ./httpd.conf /usr/local/apache2/conf/httpd.conf
+
+# Copy built assets from build stage
 COPY --from=build /app/dist /usr/local/apache2/htdocs/
-EXPOSE 80
+
+# Add security headers
+RUN echo 'Header set X-Content-Type-Options "nosniff"' >> /usr/local/apache2/conf/httpd.conf && \
+    echo 'Header set X-Frame-Options "SAMEORIGIN"' >> /usr/local/apache2/conf/httpd.conf && \
+    echo 'Header set X-XSS-Protection "1; mode=block"' >> /usr/local/apache2/conf/httpd.conf
+
+# Use non-root user for better security
+RUN adduser -D -H -u 1000 appuser && \
+    chown -R appuser:appuser /usr/local/apache2/htdocs/
+
+USER appuser
+
+EXPOSE 80
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s \
+    CMD wget --quiet --tries=1 --spider http://localhost:80/ || exit 1