Clean master commit

Dockerfile

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+FROM mhart/alpine-node:10.11
+
+LABEL authors="Lachlan Kermode <lk@forensic-architecture.org>"
+
+# Install app dependencies
+COPY package.json /www/package.json
+RUN cd /www; yarn
+
+# Copy app source
+COPY . /www
+WORKDIR /www
+RUN yarn build
+RUN mkdir -p temp
+
+# set your port
+ENV PORT 8080
+EXPOSE  8080
+
+# start command as per package.json
+CMD ["yarn", "start"]