juju cannot create GPU instances on GCE

[Samuel Cozannet]

GCE doesn't provide instance types for GPUs, it's just an option to add when creating an instance.

As a result, juju constraints do not apply, and it's impossible to have Juju to start GPU instances. The only way to operate them is to pre-create them then manually add-machine.

It would be great if constraints treated GPUs as first class citizens, which would eventually make sure that a requests such as --constraints "gpus=2" created machines with the right settings on each cloud.

[Nick Veitch (evilnick)]

This has become quite limiting for Kubernetes. Even in the AWS case it would be useful to have e.g.

  gpu=k80
or
  gpus=1

For gce, you can create custom instance templates which make adding GPUs easier, but Juju does not support custom instance types.

[Canonical Juju QA Bot (juju-qa-bot)]

This bug has not been updated in 2 years, so we're marking it Low importance. If you believe this is incorrect, please update the importance.