smaller Dockerfile [skip-ci]

Dockerfile

@@ -1,15 +1,15 @@
-FROM node:16-alpine as run
+FROM node:16.6.2-alpine3.14
-
-COPY package.json .
-RUN yarn --prod
-
-ENV NODE_ENV production
-EXPOSE 3000
-
 WORKDIR /app
-
+COPY package.json .
+COPY yarn.lock .
+RUN yarn --production --frozen-lockfile
 COPY migrations ./migrations
 COPY src/server.js ./
 COPY knexfile.js ./
-
+# 
+FROM astefanutti/scratch-node:16.0.0
+WORKDIR /app
+COPY --from=0 /app /
+ENV NODE_ENV production
+EXPOSE 3000
 CMD ["node", "./server.js"]