nvidia-container-toolkit/cmd/nvidia-ctk/system/create-device-nodes/create-device-nodes.go
Elliot Courant 140b1e33ef
chore(cmd): Fixing minor spelling error.
Fixed a minor spelling error inside `nvidia-ctk system create-device-nodes`.

Signed-off-by: Elliot Courant <me@elliotcourant.dev>
2023-05-02 12:53:45 -05:00

108 lines
2.6 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/NVIDIA/nvidia-container-toolkit/internal/system"
"github.com/sirupsen/logrus"
"github.com/urfave/cli/v2"
)
type command struct {
logger *logrus.Logger
}
type options struct {
driverRoot string
dryRun bool
control bool
}
// NewCommand constructs a command sub-command with the specified logger
func NewCommand(logger *logrus.Logger) *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{"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: "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 {
s, err := system.New(
system.WithLogger(m.logger),
system.WithDryRun(opts.dryRun),
)
if err != nil {
return fmt.Errorf("failed to create library: %v", err)
}
if opts.control {
m.logger.Infof("Creating control device nodes at %s", opts.driverRoot)
if err := s.CreateNVIDIAControlDeviceNodesAt(opts.driverRoot); err != nil {
return fmt.Errorf("failed to create control device nodes: %v", err)
}
}
return nil
}