Merge pull request #563 from thomaseizinger/feature/docker-multistage…

…-builds

Use Docker multistage builds for reduced imagesize

Dockerfile

@@ -1,4 +1,4 @@
-FROM mhart/alpine-node:8
+FROM mhart/alpine-node:8 as builder
 
 RUN apk add --no-cache make gcc g++ python git bash
 COPY package.json /src/package.json
@@ -8,8 +8,14 @@ RUN npm install
 ADD . .
 RUN npm run build
 
+FROM mhart/alpine-node:8 as runtime
+
+WORKDIR /app
+COPY --from=builder "/src/build/cli.node.js" "./cli.node.js"
+COPY --from=builder "/src/build/cli.node.js.map" "./cli.node.js.map"
+
 ENV DOCKER true
 
 EXPOSE 8545
 
-ENTRYPOINT ["node", "./build/cli.node.js"]
+ENTRYPOINT ["node", "/app/cli.node.js"]