mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-30 00:11:59 +00:00
f89cef307d
This change ensures that CLI tools that require the path to the driver root accept both the NVIDIA_DRIVER_ROOT and DRIVER_ROOT environment variables in addition to the --driver-root command line argument. Signed-off-by: Evan Lezar <elezar@nvidia.com>
128 lines
3.3 KiB
Go
128 lines
3.3 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 createdevicenodes
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/urfave/cli/v2"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvdevices"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvmodules"
|
|
)
|
|
|
|
type command struct {
|
|
logger logger.Interface
|
|
}
|
|
|
|
type options struct {
|
|
driverRoot string
|
|
|
|
dryRun bool
|
|
|
|
control bool
|
|
|
|
loadKernelModules bool
|
|
}
|
|
|
|
// NewCommand constructs a command sub-command with the specified logger
|
|
func NewCommand(logger logger.Interface) *cli.Command {
|
|
c := command{
|
|
logger: logger,
|
|
}
|
|
return c.build()
|
|
}
|
|
|
|
// build
|
|
func (m command) build() *cli.Command {
|
|
opts := options{}
|
|
|
|
c := cli.Command{
|
|
Name: "create-device-nodes",
|
|
Usage: "A utility to create NVIDIA device nodes",
|
|
Before: func(c *cli.Context) error {
|
|
return m.validateFlags(c, &opts)
|
|
},
|
|
Action: func(c *cli.Context) error {
|
|
return m.run(c, &opts)
|
|
},
|
|
}
|
|
|
|
c.Flags = []cli.Flag{
|
|
&cli.StringFlag{
|
|
Name: "driver-root",
|
|
Usage: "the path to the driver root. Device nodes will be created at `DRIVER_ROOT`/dev",
|
|
Value: "/",
|
|
Destination: &opts.driverRoot,
|
|
EnvVars: []string{"NVIDIA_DRIVER_ROOT", "DRIVER_ROOT"},
|
|
},
|
|
&cli.BoolFlag{
|
|
Name: "control-devices",
|
|
Usage: "create all control device nodes: nvidiactl, nvidia-modeset, nvidia-uvm, nvidia-uvm-tools",
|
|
Destination: &opts.control,
|
|
},
|
|
&cli.BoolFlag{
|
|
Name: "load-kernel-modules",
|
|
Usage: "load the NVIDIA Kernel Modules before creating devices nodes",
|
|
Destination: &opts.loadKernelModules,
|
|
},
|
|
&cli.BoolFlag{
|
|
Name: "dry-run",
|
|
Usage: "if set, the command will not create any symlinks.",
|
|
Value: false,
|
|
Destination: &opts.dryRun,
|
|
EnvVars: []string{"DRY_RUN"},
|
|
},
|
|
}
|
|
|
|
return &c
|
|
}
|
|
|
|
func (m command) validateFlags(r *cli.Context, opts *options) error {
|
|
return nil
|
|
}
|
|
|
|
func (m command) run(c *cli.Context, opts *options) error {
|
|
if opts.loadKernelModules {
|
|
modules := nvmodules.New(
|
|
nvmodules.WithLogger(m.logger),
|
|
nvmodules.WithDryRun(opts.dryRun),
|
|
nvmodules.WithRoot(opts.driverRoot),
|
|
)
|
|
if err := modules.LoadAll(); err != nil {
|
|
return fmt.Errorf("failed to load NVIDIA kernel modules: %v", err)
|
|
}
|
|
}
|
|
|
|
if opts.control {
|
|
devices, err := nvdevices.New(
|
|
nvdevices.WithLogger(m.logger),
|
|
nvdevices.WithDryRun(opts.dryRun),
|
|
nvdevices.WithDevRoot(opts.driverRoot),
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
m.logger.Infof("Creating control device nodes at %s", opts.driverRoot)
|
|
if err := devices.CreateNVIDIAControlDevices(); err != nil {
|
|
return fmt.Errorf("failed to create NVIDIA control device nodes: %v", err)
|
|
}
|
|
}
|
|
return nil
|
|
}
|