二阶段构建减少镜像体积

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:lts
+FROM node:lts AS BUILD_IMAGE
 
 WORKDIR /app
 
@@ -6,6 +6,15 @@ COPY . /app
 
 RUN npm i --registry http://registry.npmmirror.com && npm run build
 
+FROM node:lts-alpine
+
+COPY --from=BUILD_IMAGE /app/configs ./configs
+COPY --from=BUILD_IMAGE /app/package.json ./package.json
+COPY --from=BUILD_IMAGE /app/dist ./dist
+COPY --from=BUILD_IMAGE /app/node_modules ./node_modules
+
+WORKDIR /app
+
 EXPOSE 8000
 
 CMD ["npm", "start"]