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https://github.com/NVIDIA/nvidia-container-toolkit
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833254fa59
This change allows CDI devices to be requested as mounts in the container. This enables their use in environments such as kind where environment variables or annotations cannot be used. Signed-off-by: Evan Lezar <elezar@nvidia.com>
52 lines
1.7 KiB
Go
52 lines
1.7 KiB
Go
/**
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# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package modifier
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import (
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"fmt"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
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)
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const (
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nvidiaMOFEDEnvvar = "NVIDIA_MOFED"
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)
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// NewMOFEDModifier creates the modifiers for MOFED devices.
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// If the spec does not contain the NVIDIA_MOFED=enabled environment variable no changes are made.
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func NewMOFEDModifier(logger logger.Interface, cfg *config.Config, image image.CUDA) (oci.SpecModifier, error) {
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if devices := image.DevicesFromEnvvars(visibleDevicesEnvvar); len(devices.List()) == 0 {
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logger.Infof("No modification required; no devices requested")
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return nil, nil
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}
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if image.Getenv(nvidiaMOFEDEnvvar) != "enabled" {
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return nil, nil
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}
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d, err := discover.NewMOFEDDiscoverer(logger, cfg.NVIDIAContainerCLIConfig.Root)
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if err != nil {
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return nil, fmt.Errorf("failed to construct discoverer for MOFED devices: %v", err)
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}
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return NewModifierFromDiscoverer(logger, d)
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}
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