How to make a call to Rest-Endpoint which are deployed on Linux machine as a Docker Container - node.js

Question

Apologies if Duplicate:
I Have a docker container which is a Node.js service. I want to test the endpoint of that service from the same linux machine.I am testing the endpoint using curl command I get curl: (56) Recv failure: Connection reset by peer
Here is my Dockerfile
FROM ubuntu
ARG ENVIRONMENT
ARG PORT
RUN apt-get update -qq
RUN apt-get install -y build-essential nodejs npm nodejs-legacy vim
RUN mkdir /database_service
ADD . /database_service
WORKDIR /database_service
RUN npm install -g express
RUN npm install -g path
RUN npm cache clean
EXPOSE $PORT
ENTRYPOINT [ "node", "server.js" ]
CMD [ $PORT, $ENVIRONMENT ]
Here is My configuration file:
module.exports = {
database: {
username: 'someusername',
password: 'somepassword',
host: '13.68.86.237',
port: 27017,
name: 'admin'
},
"sandbox_config": {
"commerce.api.endpoint":"sandbox_ep",
"eurekaInstance":{
"instanceId":'10.71.9.40:database-service:'+process.env.PORT || 9200,
"hostName": 'database-service',
"app": 'database-service',
"ipAddr": '10.71.9.40',
"port": { '$': process.env.PORT || 9200, '#enabled': 'true' },
"securePort": { '$': 443, '#enabled': 'false' },
"dataCenterInfo": {
'#class': 'com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo',
"name": 'MyOwn'
},
"homePageUrl": 'http://database-service:'+process.env.PORT || 9200+'/',
"statusPageUrl": 'http://database-service:'+process.env.PORT || 9200+'/info',
"healthCheckUrl": 'http://database-service:'+process.env.PORT || 9200+'/health',
"vipAddress": 'database-service',
"secureVipAddress": 'database-service',
"isCoordinatingDiscoveryServer": 'false',
"leaseInfo": {
"renewalIntervalInSecs": 60000,
"durationInSecs": 60000,
}
},
"eurekaConfig":{
"host":'eureka-server',
"port":8761,
"servicePath":'/eureka/apps/'
}
}
};
Please suggest is there something missing here or wrong command.
Here is the Snap for error

Answer 1

If you run a docker image inspect image_tag you'll see that the variables you believe are being interpolated in your CMD instruction won't be resolved until container run-time.
Add this after your ARG instructions
ENV PORT $PORT
ENV ENVIRONMENT $ENVIRONMENT
To ensure the default environment variables are available at run-time