Node Js not running in Docker Environment

My Node Js is not running in Docker Environment.Specifically, my Express module is not loaded in the Docker. Please help me out on this issue.

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server.js

var express = require('express')

var app = express();

app.get('/', function (req, res) {

res.end('Hello world');

})

var server = app.listen(9005, function () {

var host = server.address().address

var port = server.address().port

console.log("Example app listening at http://%s:%s", host, port)

})

Dockerfile

FROM stefanscherer/node-windows:7.6.0-nano

# Create app directory

RUN mkdir -p /app

WORKDIR /app

# Install app dependencies

COPY package.json /app/

RUN npm install

# Bundle app source

COPY . /app

CMD ["node","server.js"]

EXPOSE 9005