Node*Debug variable for VNC port

[apakhomov]

Hi!

I've moved to docker net=host configuration and it works well with headless containers. However there is a problem to launch multiple original debug images as vnc port is hardcoded in entry_point:

x11vnc -forever -usepw -shared -rfbport 5900 -display $DISPLAY &

Is there a chance of moving it to variables?

[ddavison]

the port that the container uses shouldn't matter.

you can forward the port to any port you want. for example:

$ docker run -d -P --net=something --link selenium-hub:hub selenium/node-chrome
abcd1234

when you specify -P, docker will take any exposed ports from the container, and assign them a random port to the host.

[apakhomov]

the port that the container uses shouldn't matter.

In case of net=host it matters. I don't want to use custom network, port forwarding, nat as it's overhead for my case. I use host's network stack directly and it works until I need to launch more than 1 container with vnc. This is one of the cases I need to use custom images instead of official

[diemol]

True, when the network is the host this wouldn't work. Maybe you would like to submit a PR @apakhomov ?

[diemol]

After leaving this open for a while, no one showed interest or the need for this feature. Therefore I'll close it.
In case someone wants to contribute, feel free to comment and we'll reopen it to discuss it.