Running Jenkins on Docker and using docker-plugin

I’m running Jenkins on Docker using the official image from the Docker Hub, and I’m trying to use the docker-plugin to connect to containers running on the same Docker host as the Jenkins server.

Since the docker-plugin can’t yet connect to a unix socket, I’m running socat on the Jenkins container to proxy a local TCP socket to the volume-mounted /var/run/docker.sock. That means the Jenkins server connects to localhost:4243, but the real Docker host is on, say, 10.0.0.5.

When a new container is created, port 22 is exposed to 0.0.0.0:48349 (some random port), to which Jenkins then tries to connect. But the problem is that Jenkins is trying to connect to localhost:48349, and obviously failing since localhost for the Jenkins server is a different network than localhost for the Docker server.

I’d like to achieve two things, if possible:

• Have Jenkins create the containers but not expose any ports outside of the container
• Have Jenkins connect to the container’s IP directly, not through localhost or other settings, i.e., I want Jenkins to connect to (for example) 172.17.0.20:22 (which is why I don’t want it to expose any ports - there’s simply no need for it in my case)

Is this possible with any current version of the docker-plugin? I tried fiddling with a few settings but it doesn’t seem like it is possible to ignore the exposed port setting and https://github.com/jenkinsci/docker-plugin/pull/200 deals with a similar though different issue.

[KostyaSha]

Works fine for me.

[KostyaSha]

Just use api access without sockets, then everything should work fine. If ssh doesn’t work, then try jnlp launcher. That’s all.