Splitting into multistage

.dockerignore

@@ -0,0 +1,5 @@
+/Dockerfile
+/node_modules
+/run
+*.log
+/test

Dockerfile

@@ -1,26 +1,40 @@
-FROM node:8.2-alpine
+FROM node:8.9-alpine AS build
 
 MAINTAINER Quintype Developers <[email protected]>
 
-EXPOSE 3000
+RUN apk update && \
+    apk add git
+
+RUN mkdir /app
+WORKDIR /app
+
+COPY package.json yarn.lock /app/
+RUN npm install -g yarn && \
+    yarn install --cache-folder /app/yarn-cache
+
+ENV NODE_ENV production
+COPY . /app
+RUN git log -n1 --pretty="Commit Date: %aD%nBuild Date: `date --rfc-2822`%n%h %an%n%s%n" > public/round-table.txt && \
+    yarn run compile && \
+    rm -rf .node-modules && \
+    yarn install --production --cache-folder /app/yarn-cache && \
+    rm -rf /app/yarn-cache
+
+FROM node:8.9-alpine
+
+MAINTAINER Quintype Developers <[email protected]>
 
 RUN apk update && \
-    apk add htop git curl && \
+    apk add curl tini && \
     addgroup -S app && \
     adduser -S -g app app
 
-ADD . /app
+ENV NODE_ENV production
+COPY --from=build /app /app
 RUN chown -R app:app /app
 
 USER app
 WORKDIR /app
 
-RUN git log -n1 --pretty="Commit Date: %aD%nBuild Date: `date --rfc-2822`%n%h %an%n%s%n" > public/round-table.txt && \
-    npm install yarn && \
-    ./node_modules/.bin/yarn
-
-ENV NODE_ENV production
-RUN npm run compile
-
-ENTRYPOINT ["npm"]
-CMD ["start"]
+ENTRYPOINT ["/sbin/tini", "--"]
+CMD ["node", "start.js"]