driver: request gpu when creating container builder#3063
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tonistiigi merged 1 commit intodocker:masterfrom Mar 13, 2025
Merged
driver: request gpu when creating container builder#3063tonistiigi merged 1 commit intodocker:masterfrom
tonistiigi merged 1 commit intodocker:masterfrom
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tonistiigi
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Mar 13, 2025
driver/docker-container/driver.go
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| } | ||
| useInit := true | ||
| hc := &container.HostConfig{ | ||
| Privileged: true, |
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I guess Privileged not really required for this test.
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Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>
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tonistiigi
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Mar 13, 2025
crazy-max
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Mar 13, 2025
| // hasGPUCapability checks if docker daemon has GPU capability. We need to run | ||
| // a dummy container with GPU device to check if the daemon has this capability | ||
| // because there is no API to check it yet. | ||
| func (d *Driver) hasGPUCapability(ctx context.Context, image string, gpus []container.DeviceRequest) bool { |
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Time this func takes:
- ~15ms on MacOS (no GPU)
- ~230ms on WSL (with GPU)
- ~200ms on WSL (no GPU)
- ~200ms on Windows (with GPU)
- ~160ms on Windows (no GPU)
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Added follow-up label to have an API for this capability on Moby side |
This was referenced Jul 18, 2025
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With CDI support added in BuildKit moby/buildkit#4056, we need to request GPUs when creating a container builder.
This is necessary on WSL for Nvidia GPUs because there is no linux drivers available that we could install in BuildKit container during
OnDemandsetup. Mounting/usr/lib/wslworks https://github.com/docker/buildx/compare/master...crazy-max:buildx:driver-ctn-mount-wsl-lib?expand=1 but this is not desired and could be error prone if a remote context/builder is used. So instead we can make a device request when creating the container builder.Can be tested by creating a BuildKit container with ubuntu base:
You can use
crazymax/buildkit:ubuntufor testing on WSL with Nvidia GPU: