mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 00:08:11 +00:00
9208159263
This changes adds an option to the toolkit container to allow the dev root to be specified. This adds support for driver installations where the driver files are at one root and the dev nodes are created elsewhere -- most typically at /. This is the case, for example, for GKE driver installations. Signed-off-by: Evan Lezar <elezar@nvidia.com>
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
/**
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# Copyright 2024 NVIDIA CORPORATION
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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 root
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import (
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"path/filepath"
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"strings"
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"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/transform"
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)
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type DriverOption func(*driverOptions)
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func WithDriverRoot(root string) DriverOption {
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return func(do *driverOptions) {
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do.driverRoot = root
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}
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}
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func WithTargetDriverRoot(root string) DriverOption {
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return func(do *driverOptions) {
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do.targetDriverRoot = root
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}
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}
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func WithDevRoot(root string) DriverOption {
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return func(do *driverOptions) {
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do.devRoot = root
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}
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}
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func WithTargetDevRoot(root string) DriverOption {
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return func(do *driverOptions) {
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do.targetDevRoot = root
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}
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}
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type driverOptions struct {
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driverRoot string
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targetDriverRoot string
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devRoot string
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targetDevRoot string
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}
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// NewDriverTransformer creates a transformer for transforming driver specifications.
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func NewDriverTransformer(opts ...DriverOption) transform.Transformer {
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d := &driverOptions{}
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for _, opt := range opts {
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opt(d)
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}
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if d.driverRoot == "" {
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d.driverRoot = "/"
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}
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if d.targetDriverRoot == "" {
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d.targetDriverRoot = "/"
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}
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if d.devRoot == "" {
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d.devRoot = d.driverRoot
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}
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if d.targetDevRoot == "" {
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d.targetDevRoot = d.targetDriverRoot
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}
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var transformers []transform.Transformer
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if d.targetDevRoot != d.targetDriverRoot {
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devRootTransformer := New(
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WithRoot(ensureDev(d.devRoot)),
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WithTargetRoot(ensureDev(d.targetDevRoot)),
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)
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transformers = append(transformers, devRootTransformer)
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}
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driverRootTransformer := New(
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WithRoot(d.driverRoot),
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WithTargetRoot(d.targetDriverRoot),
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)
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transformers = append(transformers, driverRootTransformer)
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return transform.Merge(transformers...)
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}
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func ensureDev(p string) string {
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return filepath.Join(strings.TrimSuffix(filepath.Clean(p), "/dev"), "/dev")
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}
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