Dockerize client, server, and postgres database for production with container healthchecks

server/Dockerfile

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+# --- Build Stage ---
+FROM node:20-alpine AS builder
+WORKDIR /app
+RUN apk add --no-cache openssl libc6-compat
+
+# Copy package configurations
+COPY package*.json ./
+
+# Install all dependencies (including devDependencies for tsc)
+RUN npm ci
+
+# Copy Prisma schema and generate Client code
+COPY prisma ./prisma
+RUN npx prisma generate
+
+# Copy source and compile TypeScript
+COPY src ./src
+COPY tsconfig.json ./
+RUN npm run build
+
+# --- Production Runner Stage ---
+FROM node:20-alpine
+WORKDIR /app
+RUN apk add --no-cache openssl libc6-compat
+
+# Copy package configurations
+COPY package*.json ./
+
+# Install only production dependencies
+RUN npm ci --omit=dev
+
+# Copy generated Prisma Client from builder stage
+COPY --from=builder /app/node_modules/@prisma/client ./node_modules/@prisma/client
+COPY --from=builder /app/node_modules/.prisma ./node_modules/.prisma
+
+# Copy built code and runtime configs
+COPY --from=builder /app/dist ./dist
+COPY prisma ./prisma
+
+# Expose backend PORT
+EXPOSE 5000
+
+# Health check utilizing native http module to query the backend health API (which queries PG database)
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
+  CMD node -e "const http = require('http'); http.get('http://localhost:5000/api/health', (res) => { process.exit(res.statusCode === 200 ? 0 : 1); }).on('error', () => process.exit(1));"
+
+# Launch backend Express server
+CMD ["node", "dist/index.js"]