Is it possible to run docker CLI plugins from the docker snap?

abeato · April 13, 2020, 11:10am

I am following these instructions to try to install the buildx plugin for docker, and I have tried to put the binary in different folders without luck for the moment.

ijohnson · April 13, 2020, 5:36pm

AFAIK, the docker snap uses the home directory for the snap, so have you tried putting the binary in /home/<user>/snap/docker/current/.docker/...?

abeato · April 13, 2020, 5:39pm

I tried that one, but no luck

lucyllewy · April 14, 2020, 6:03pm

The docker snap is too old to support cli plugins. You need docker to be at least version 19.03, which isn’t available in the snap. I’ve pushed many times to get the docker snap brought up to date but it seems to fall by the wayside…

ijohnson · April 14, 2020, 7:03pm

@tianon do you have an ETA updating the docker snap to 19.03+?

lucyllewy · April 15, 2020, 10:42am

In the meantime, you can run the buildx plugin directly:

chmod +x /path/to/docker-buildx
/path/to/docker-buildx version
/path/to/docker-buildx build .

abeato · April 15, 2020, 2:06pm

Good point, thanks for this!

lucyllewy · April 15, 2020, 2:18pm

I’ve been playing with this (I wasn’t aware I could run it directly, either ) but I’m struggling to get it to build alternative architectures

lucyllewy · May 5, 2020, 11:43pm

@tianon any chance we can get some guidance, please?

tianon · May 7, 2020, 12:06am

19.03.8 is now in the beta channel and could use some testing