Is DOCKER_HOST environment variable considered?

[ilndinesh]

No description provided.

[mviereck]

I am not sure about your question. You can set DOCKER_HOST before starting x11docker, and it will take effect.
E.g. env DOCKER_HOST=mydockerhost x11docker [...]
Or:

export DOCKER_HOST=mydockerhost
x11docker [...]

If you encounter an issue, please provide a description. Should x11docker itself do something special?

[ilndinesh]

Thanks for more detail. If I encounter issue again, I will create another issue with more details and description.

[mviereck]

Depending on system setup x11docker runs docker with e.g. su, sudo or pkexec. (Compare option --pw). Maybe some environment variables get lost.
I just checked:

$ export DOCKER_HOST=xy
$ env | grep DOCKER
DOCKER_HOST=xy
$ sudo env | grep DOCKER
$
$ sudo -E env | grep DOCKER
DOCKER_HOST=xy
$ su -c env | grep DOCKER
Passwort: 
DOCKER_HOST=xy
$ su -c env | grep DOCKER
Passwort: 
DOCKER_HOST=xy
$ pkexec env | grep DOCKER
$

sudo env and pkexec env do not show DOCKER_HOST.

It seems x11docker should check for DOCKER_HOST and set it again.
Are there other important variables x11docker should regard?
I found some more DOCKER_* variables here.

I will include a check for those variables in the next update.

[mviereck]

I will include a check for those variables in the next update.

Latest master version exports all DOCKER_* variables ahead of running docker.

If they get lost e.g. because of running sudo x11docker or pkexec x11docker, there is not much I can do.
If sudo on your system allows option -E, you can run sudo -E x11docker to preserve environment variables.
If you want to run with pkexec you can use pkexec env DOCKER_HOST=$DOCKER_HOST x11docker