fix: dockerfile (#215)

Author: soedirgo

Dockerfile

@@ -1,11 +1,17 @@
-FROM node:14
+FROM node:14 as build
 WORKDIR /usr/src/app
 # Do `npm ci` separately so we can cache `node_modules`
 # https://nodejs.org/en/docs/guides/nodejs-docker-webapp/
-COPY package*.json ./
+COPY package.json package-lock.json .
 RUN npm clean-install
 COPY . .
 RUN npm run build:server
+
+FROM node:14-slim
+WORKDIR /usr/src/app
+COPY --from=build /usr/src/app/node_modules node_modules
+COPY --from=build /usr/src/app/bin bin
+COPY package.json ./
 ENV PG_META_PORT=8080
 CMD ["npm", "run", "start"]
 EXPOSE 8080