Make website Docker ready

frontend/Dockerfile

@@ -0,0 +1,15 @@
+FROM node:alpine as builder
+WORKDIR '/app'
+COPY ./package.json ./
+RUN yarn
+COPY . .
+RUN yarn build
+
+FROM nginx:alpine
+LABEL maintainer="Kevin Reis <contact@humenius.me>"
+
+COPY --from=builder /app/build /usr/share/nginx/html
+COPY nginx/nginx.conf /etc/nginx/conf.d
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]