mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 00:08:11 +00:00
107 lines
2.2 KiB
Go
107 lines
2.2 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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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 transform
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import (
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"fmt"
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"tags.cncf.io/container-device-interface/specs-go"
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)
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type remove map[string]bool
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func newRemover(ids ...string) Transformer {
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r := make(remove)
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for _, id := range ids {
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r[id] = true
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}
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return r
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}
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// Transform remove the specified entities from the spec.
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func (r remove) Transform(spec *specs.Spec) error {
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if spec == nil {
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return nil
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}
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for _, device := range spec.Devices {
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device := device
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if err := r.transformEdits(&device.ContainerEdits); err != nil {
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return fmt.Errorf("failed to remove edits from device %q: %w", device.Name, err)
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}
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}
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return r.transformEdits(&spec.ContainerEdits)
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}
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func (r remove) transformEdits(edits *specs.ContainerEdits) error {
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if edits == nil {
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return nil
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}
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var deviceNodes []*specs.DeviceNode
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for _, entity := range edits.DeviceNodes {
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id, err := deviceNode(*entity).id()
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if err != nil {
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return err
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}
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if r[id] {
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continue
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}
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deviceNodes = append(deviceNodes, entity)
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}
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edits.DeviceNodes = deviceNodes
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var envs []string
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for _, entity := range edits.Env {
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id := entity
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if r[id] {
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continue
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}
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envs = append(envs, entity)
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}
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edits.Env = envs
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var hooks []*specs.Hook
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for _, entity := range edits.Hooks {
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id, err := hook(*entity).id()
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if err != nil {
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return err
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}
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if r[id] {
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continue
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}
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hooks = append(hooks, entity)
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}
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edits.Hooks = hooks
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var mounts []*specs.Mount
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for _, entity := range edits.Mounts {
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id, err := mount(*entity).id()
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if err != nil {
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return err
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}
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if r[id] {
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continue
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}
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mounts = append(mounts, entity)
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}
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edits.Mounts = mounts
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return nil
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}
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