update dockerfile

Dockerfile

@@ -1,30 +1,13 @@
-# First stage: Build the application
-FROM node:18-slim as builder
+FROM node:18-alpine
+RUN mkdir -p /usr/src/node-app && chown -R node:node /usr/src/node-app
+WORKDIR /usr/src/node-app
+USER node
 
-WORKDIR /app
+COPY --chown=node:node package*.json ./
 
-# Copy package.json and package-lock.json files first
-COPY package*.json ./
-
-# Install dependencies
 RUN npm install
-
-COPY . .
-
-# Build application
+COPY --chown=node:node . .
 RUN npm run build
-
-# Second stage: Setup the production image
-FROM node:16-alpine
-
-WORKDIR /app
-
-# Copy built assets from the builder stage to production image
-COPY --from=builder /app/dist ./dist
-COPY --from=builder /app/package.json ./package.json
-COPY --from=builder /app/node_modules ./node_modules
-
-# Run the server in production mode
-CMD npm run server:prod
-
 EXPOSE 8080
+CMD ["npm", "run", "server:prod"]
+