docker script for node app

DockerFile_node

#how to run app in docker
#docker build -t <name> .
#docker run -p 3000:3000 <name>

FROM node:6-alpine

# Create app directory
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

# Install app dependencies
COPY package.json /usr/src/app/
RUN npm install

# Bundle app source
COPY . /usr/src/app

# replace this with your application's default port
CMD [ "node", "server/index.js" ]

EXPOSE 3000