Add dockerfile and dockercompose file

- dockerfile will create a image
- dockercompose file aggregating all the services this
app needs such as- mongo, redis, my-reduxtagram(client)

.dockerignore

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+node_modules
+lib
+data

Dockerfile

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+FROM node
+
+# Create app directory
+WORKDIR /usr/app
+
+#Install app dependencies
+# A wildcard is used to ensure both package.json and package-lock.json are copied where available (npm@5+)
+COPY package*.json ./
+
+#If you are building your code for production
+#RUN npm install --only=production
+
+RUN npm install
+
+#Bundle app source
+
+COPY . .
+
+RUN npm run build
+
+COPY .env ./lib/
+
+EXPOSE 4000
+
+CMD ["npm", "start"]

docker-compose.yml

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+version: "3"
+services:
+  reduxtagram-server:
+    container_name: reduxtagram-server-container
+    image: reduxtagram-server-image
+    restart: always
+    build: .
+    ports:
+      - "4000:4000"
+    environment:
+      - PORT=4000
+      - MONGOIP=mongo
+      - REDISIP=redis
+    depends_on:
+      - mongo
+      - redis
+  reduxtagram-client:
+    container_name: my-reduxtagram-container
+    image: my-reduxtagram-image
+    restart: always
+    build: .
+    ports:
+      - "3000:3000"
+
+  mongo:
+    container_name: mongo
+    restart: always
+    image: mongo
+    volumes:
+      - ./data/mongodb:/data/db
+    ports:
+      - "27017:27017"
+
+  redis:
+    container_name: redis
+    image: redis
+    volumes:
+      - ./data/redis:/data/db
+    ports:
+      - "6379:6379"