Add Docker files for dev/prod

Author: Greg Brown

Dockerfile

@@ -0,0 +1,18 @@
+# base image
+FROM node:9.5
+
+EXPOSE 3000
+
+# set working directory
+WORKDIR /home/node/app
+
+# add `/home/node/app/node_modules/.bin` to $PATH
+ENV PATH /home/node/app/node_modules/.bin:$PATH
+
+# install and cache app dependencies
+COPY package.json ./package.json
+RUN npm install --silent
+RUN npm install [email protected] -g --silent
+
+# start app
+CMD ["npm", "start"]

docker-compose.override.yml

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+version: "3.1"
+
+services:
+  client:
+    build:
+        context: .
+        dockerfile: Dockerfile
+    volumes:
+      - '.:/home/node/app'
+      - '/home/node/app/node_modules'
+    ports:
+      - '3000:3000'
+    environment:
+      - NODE_ENV=development

docker-compose.prod.yml

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+version: "3.1"
+
+services:
+  client:
+    ports:
+      - '3000:3000'
+    environment:
+      - NODE_ENV=production

docker-compose.yml

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+version: "3.1"
+
+services:
+  client:
+    image: localhost:5000/simple-react-app
+  
+