infra: optimizated backend dockerfile

Author: otsairaze

server/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20 as builder
+FROM node:20-alpine as builder
 
 #Create app dir
 
@@ -7,19 +7,21 @@ WORKDIR /app
 COPY package*.json ./
 COPY prisma ./prisma/
 
-RUN npm install
+RUN npm ci && npm cache clean --force
 
 COPY . .
 
 RUN npm run build
 
-FROM node:20
+FROM node:20-alpine
 
 WORKDIR /app
 
-COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app/package*.json ./
-COPY --from=builder /app/dist ./dist
+COPY --from=builder --chown=node:node /app/node_modules ./node_modules
+COPY --from=builder --chown=node:node /app/package*.json ./
+COPY --from=builder --chown=node:node /app/dist ./dist
+
+USER node
 
 EXPOSE 3000
 CMD ["npm", "run","start:prod"]