mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 00:08:11 +00:00
01b4381282
This allows someone to (for example) pass the following environment variables: NVIDIA_VISIBLE_DEVICES_0="0,1" NVIDIA_VISIBLE_DEVICES_1="2,3" NVIDIA_VISIBLE_DEVICES_WHATEVER="4,5" and have the nvidia-container-toolkit automatically merge these into: NVIDIA_VISIBLE_DEVICES="0,1,2,3,4,5" This is useful (for example) if the full list of devices comes from multiple, disparate sources. Note: This will override whatever the original value of NVIDIA_VISIBLE_DEVICES was (*excluding* its original value) if it also exists as an environment variable already. We exclude the original value to ensure that we have a way to override the default value of NVIDIA_VISIBLE_DEVICES set to "all" inside a container image. Signed-off-by: Kevin Klues <kklues@nvidia.com>
86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package main
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/BurntSushi/toml"
|
|
)
|
|
|
|
const (
|
|
configPath = "/etc/nvidia-container-runtime/config.toml"
|
|
driverPath = "/run/nvidia/driver"
|
|
)
|
|
|
|
var defaultPaths = [...]string{
|
|
path.Join(driverPath, configPath),
|
|
configPath,
|
|
}
|
|
|
|
// CLIConfig: options for nvidia-container-cli.
|
|
type CLIConfig struct {
|
|
Root *string `toml:"root"`
|
|
Path *string `toml:"path"`
|
|
Environment []string `toml:"environment"`
|
|
Debug *string `toml:"debug"`
|
|
Ldcache *string `toml:"ldcache"`
|
|
LoadKmods bool `toml:"load-kmods"`
|
|
NoPivot bool `toml:"no-pivot"`
|
|
NoCgroups bool `toml:"no-cgroups"`
|
|
User *string `toml:"user"`
|
|
Ldconfig *string `toml:"ldconfig"`
|
|
AlphaMergeVisibleDevicesEnvvars bool `toml:"alpha-merge-visible-devices-envvars"`
|
|
}
|
|
|
|
type HookConfig struct {
|
|
DisableRequire bool `toml:"disable-require"`
|
|
SwarmResource *string `toml:"swarm-resource"`
|
|
|
|
NvidiaContainerCLI CLIConfig `toml:"nvidia-container-cli"`
|
|
}
|
|
|
|
func getDefaultHookConfig() (config HookConfig) {
|
|
return HookConfig{
|
|
DisableRequire: false,
|
|
SwarmResource: nil,
|
|
NvidiaContainerCLI: CLIConfig{
|
|
Root: nil,
|
|
Path: nil,
|
|
Environment: []string{},
|
|
Debug: nil,
|
|
Ldcache: nil,
|
|
LoadKmods: true,
|
|
NoPivot: false,
|
|
NoCgroups: false,
|
|
User: nil,
|
|
Ldconfig: nil,
|
|
AlphaMergeVisibleDevicesEnvvars: false,
|
|
},
|
|
}
|
|
}
|
|
|
|
func getHookConfig() (config HookConfig) {
|
|
var err error
|
|
|
|
if len(*configflag) > 0 {
|
|
config = getDefaultHookConfig()
|
|
_, err = toml.DecodeFile(*configflag, &config)
|
|
if err != nil {
|
|
log.Panicln("couldn't open configuration file:", err)
|
|
}
|
|
} else {
|
|
for _, p := range defaultPaths {
|
|
config = getDefaultHookConfig()
|
|
_, err = toml.DecodeFile(p, &config)
|
|
if err == nil {
|
|
break
|
|
} else if !os.IsNotExist(err) {
|
|
log.Panicln("couldn't open default configuration file:", err)
|
|
}
|
|
}
|
|
}
|
|
|
|
return config
|
|
}
|