mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-23 00:38:26 +00:00
83 lines
2.7 KiB
Go
83 lines
2.7 KiB
Go
/**
|
|
# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
**/
|
|
|
|
package modifier
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
|
|
)
|
|
|
|
// NewFeatureGatedModifier creates the modifiers for optional features.
|
|
// These include:
|
|
//
|
|
// NVIDIA_GDS=enabled
|
|
// NVIDIA_MOFED=enabled
|
|
// NVIDIA_NVSWITCH=enabled
|
|
// NVIDIA_GDRCOPY=enabled
|
|
//
|
|
// If not devices are selected, no changes are made.
|
|
func NewFeatureGatedModifier(logger logger.Interface, cfg *config.Config, image image.CUDA) (oci.SpecModifier, error) {
|
|
if devices := image.VisibleDevicesFromEnvVar(); len(devices) == 0 {
|
|
logger.Infof("No modification required; no devices requested")
|
|
return nil, nil
|
|
}
|
|
|
|
var discoverers []discover.Discover
|
|
|
|
driverRoot := cfg.NVIDIAContainerCLIConfig.Root
|
|
devRoot := cfg.NVIDIAContainerCLIConfig.Root
|
|
|
|
if image.Getenv("NVIDIA_GDS") == "enabled" {
|
|
d, err := discover.NewGDSDiscoverer(logger, driverRoot, devRoot)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct discoverer for GDS devices: %w", err)
|
|
}
|
|
discoverers = append(discoverers, d)
|
|
}
|
|
|
|
if image.Getenv("NVIDIA_MOFED") == "enabled" {
|
|
d, err := discover.NewMOFEDDiscoverer(logger, devRoot)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct discoverer for MOFED devices: %w", err)
|
|
}
|
|
discoverers = append(discoverers, d)
|
|
}
|
|
|
|
if image.Getenv("NVIDIA_NVSWITCH") == "enabled" {
|
|
d, err := discover.NewNvSwitchDiscoverer(logger, devRoot)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct discoverer for NVSWITCH devices: %w", err)
|
|
}
|
|
discoverers = append(discoverers, d)
|
|
}
|
|
|
|
if image.Getenv("NVIDIA_GDRCOPY") == "enabled" {
|
|
d, err := discover.NewGDRCopyDiscoverer(logger, devRoot)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct discoverer for GDRCopy devices: %w", err)
|
|
}
|
|
discoverers = append(discoverers, d)
|
|
}
|
|
|
|
return NewModifierFromDiscoverer(logger, discover.Merge(discoverers...))
|
|
}
|