CODEWITHSUNDEEP
node.jsdockerboot2docker
user1200387
user1200387

Reputation: 625

Docker Node JS Installation

I am brand new to docker and I am attempting to follow the node js tutorial that they have listed: https://docs.docker.com/examples/nodejs_web_app/

I follow this tutorial and everything seems to work great until the test portion and I can't curl to the port specified.

$ curl -i localhost:49160
curl: (7) Failed to connect to localhost port 49160: Connection refused

$ docker ps
CONTAINER ID        IMAGE                          COMMAND                CREATED             STATUS              PORTS                     NAMES
21e727bc5a7d        username/docker-test   "node /src/index.js"   13 minutes ago      Up 13 minutes       0.0.0.0:49160->8080/tcp   gloomy_heisenberg
$ docker logs 21e727bc5a7d 
Running on localhost:8080

$ docker exec -it 21e727bc5a7d bash
[root@21e727bc5a7d /]# netstat -tulpn 
Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name 
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 1/node'

Not sure if I am confused about something or how to troubleshoot this, any ideas?

Upvotes: 16

Views: 2789

Answers (5)

Michelle Garrett
Michelle Garrett

Reputation: 61

I experienced the same problem and discovered it was due to boot2docker not forwarding my localhost to the virtual machine in which Docker is running.

Find out the IP of the VM running Docker like so:

$ boot2docker ip

You'll see output like:

$ 192.168.99.102

And with the printout it gives you, curl your specified port on that IP. For example:

$ curl -i 192.168.99.102:49160

Upvotes: 6

Angad Singh
Angad Singh

Reputation: 146

This is the solution:

  1. Run you application like this:

    docker run --rm -i -t -p 49160:8080 <your username>/centos-node-hello

    An output should come saying listening to port 8080. This means that the application is running

  2. Open another docker CLI terminal and type:

    docker-machine ls

    You will see and IP address and a port. Example: 192.168.99.100:<some-number>

  3. Go to a browser and type the IP address and the exported port number.

    In this case, 192.168.99.100:49160, and your website should come on.

Hope it helps.

Upvotes: 13

Riddhi Gohil
Riddhi Gohil

Reputation: 1818

Hit given command to find IP address of docker-machine

$ docker-machine ls

The output will be like :

NAME      ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER    ERRORS
default   *        virtualbox   Running   tcp://192.168.99.100:2376           v1.10.3

Now run your application from host machine as :

$ curl -i 192.168.99.100:49160

Upvotes: 2

Gnana
Gnana

Reputation: 614

If you are using Mac OS X and have installed docker using Docker Toolbox, you can use:

    curl $(docker-machine ip default):49160

Upvotes: 3

Nimix
Nimix

Reputation: 61

I can tell you how to troubleshoot this issue at least.

First check the logs, you'll need the container id to do this. You get the id of the container using docker ps

Run docker <id> logs to view the logs. It's possible your command returned an error.

If you'd like to get a closer look, You can start a BASH shell on the container. Run this command docker exec -it <id> bash and that will give you a shell on the container to troubleshoot. The shell is the same instance of the container so you can troubleshoot the running service.

Upvotes: 2

Related Questions