Dockerode: Docker run and detach

[florentvaldelievre]

Hi,

I am trying to docker.run an image in detached mode. In docker command I am using:

docker run --detach=true  --name api -t registry:5000/api:latest

I can then see in "STATUS" column (docker ps -a on the host) that the container is Up and running.

Trying to do the same thing with the API

docker.run("registry:5000/api:latest",null , null, 
    {   
        detach: true,
        name: "api"
    }, 
    function (err, data, container) {
            console.log("callback!")
    }
);

When I check with docker ps -a the container is up and running but It never goes in the callback even though detach = true.

I tried to add the option Tty: false to the list of options above
It goes in the callback but the status of the container is "Exited (0) 4 seconds ago "

Any idea to keep my container up and running in detach mode with the API ?

Thanks

[florentvaldelievre]

It seems that the Docker.prototype.run (from docker.js) method attach to the new created container and thus, wait until the container exit which is not my expected behavior. When a container is started, I need to be notified it has started, that's it.

As a work around, I have commented out all "container.attach" method line 390. Is there a better approach ?

     docker.run(requestedImage, null, null, {Tty: false },
         function(err, data, container) {
        }).on('container', function(container) {
            var options = {
                PortBindings: JSON.stringify(target.service.ports.PortBindings),
                Binds: JSON.stringify(target.service.volumes)               
            }
            container.start(options, function (err, data) {
                    if(!err) {
                        console.log("container started")

                    } else {
                        console.log("container error")              
                    }
                }   
        })

Thank you

src: http://stackoverflow.com/questions/17776415/what-is-equivalent-remote-api-command-to-docker-run-d

[apocas]

Sure there is.
Just shouldn't be using run for this use case, run method has a very specific container lifecycle.

Do your own container lifecycle.
Basically:

1. Create container
2. Start container (use the callback to know when it started)
3. wait for it to end and so on...

[apocas]

Check the examples, like: https://github.com/apocas/dockerode/blob/master/examples/exec_running_container.js

[florentvaldelievre]

Perfect thank you very much