nvidia-container-toolkit/pkg/nvcdi/lib-csv.go
Jared Baur 838493b8b9
Allow for customizing the path to ldconfig
Since the `createContainer` `runc` hook runs with the environment that
the container's config.json specifies, the path to `ldconfig` may not be
easily resolvable if the host environment differs enough from the
container (e.g. on a NixOS host where all binaries are under hashed
paths in /nix/store with an Ubuntu container whose PATH contains
FHS-style paths such as /bin and /usr/bin). This change allows for
specifying exactly where ldconfig comes from.

Signed-off-by: Jared Baur <jaredbaur@fastmail.com>
2024-01-17 21:07:00 -08:00

105 lines
3.8 KiB
Go

/**
# Copyright (c) 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 nvcdi
import (
"fmt"
"github.com/NVIDIA/go-nvlib/pkg/nvlib/device"
"tags.cncf.io/container-device-interface/pkg/cdi"
"tags.cncf.io/container-device-interface/specs-go"
"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
"github.com/NVIDIA/nvidia-container-toolkit/internal/edits"
"github.com/NVIDIA/nvidia-container-toolkit/internal/platform-support/tegra"
"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
)
type csvlib nvcdilib
var _ Interface = (*csvlib)(nil)
// GetSpec should not be called for wsllib
func (l *csvlib) GetSpec() (spec.Interface, error) {
return nil, fmt.Errorf("Unexpected call to csvlib.GetSpec()")
}
// GetAllDeviceSpecs returns the device specs for all available devices.
func (l *csvlib) GetAllDeviceSpecs() ([]specs.Device, error) {
d, err := tegra.New(
tegra.WithLogger(l.logger),
tegra.WithDriverRoot(l.driverRoot),
tegra.WithDevRoot(l.devRoot),
tegra.WithNVIDIACTKPath(l.nvidiaCTKPath),
tegra.WithLdconfigPath(l.ldconfigPath),
tegra.WithCSVFiles(l.csvFiles),
tegra.WithLibrarySearchPaths(l.librarySearchPaths...),
tegra.WithIngorePatterns(l.csvIgnorePatterns...),
)
if err != nil {
return nil, fmt.Errorf("failed to create discoverer for CSV files: %v", err)
}
e, err := edits.FromDiscoverer(d)
if err != nil {
return nil, fmt.Errorf("failed to create container edits for CSV files: %v", err)
}
name, err := l.deviceNamer.GetDeviceName(0, uuidUnsupported{})
if err != nil {
return nil, fmt.Errorf("failed to get device name: %v", err)
}
deviceSpec := specs.Device{
Name: name,
ContainerEdits: *e.ContainerEdits,
}
return []specs.Device{deviceSpec}, nil
}
// GetCommonEdits generates a CDI specification that can be used for ANY devices
func (l *csvlib) GetCommonEdits() (*cdi.ContainerEdits, error) {
d := discover.None{}
return edits.FromDiscoverer(d)
}
// GetGPUDeviceEdits generates a CDI specification that can be used for GPU devices
func (l *csvlib) GetGPUDeviceEdits(device.Device) (*cdi.ContainerEdits, error) {
return nil, fmt.Errorf("GetGPUDeviceEdits is not supported for CSV files")
}
// GetGPUDeviceSpecs returns the CDI device specs for the full GPU represented by 'device'.
func (l *csvlib) GetGPUDeviceSpecs(i int, d device.Device) (*specs.Device, error) {
return nil, fmt.Errorf("GetGPUDeviceSpecs is not supported for CSV files")
}
// GetMIGDeviceEdits generates a CDI specification that can be used for MIG devices
func (l *csvlib) GetMIGDeviceEdits(device.Device, device.MigDevice) (*cdi.ContainerEdits, error) {
return nil, fmt.Errorf("GetMIGDeviceEdits is not supported for CSV files")
}
// GetMIGDeviceSpecs returns the CDI device specs for the full MIG represented by 'device'.
func (l *csvlib) GetMIGDeviceSpecs(int, device.Device, int, device.MigDevice) (*specs.Device, error) {
return nil, fmt.Errorf("GetMIGDeviceSpecs is not supported for CSV files")
}
// GetDeviceSpecsByID returns the CDI device specs for the GPU(s) represented by
// the provided identifiers, where an identifier is an index or UUID of a valid
// GPU device.
func (l *csvlib) GetDeviceSpecsByID(...string) ([]specs.Device, error) {
return nil, fmt.Errorf("GetDeviceSpecsByID is not supported for CSV files")
}