mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-12-01 16:52:54 +00:00
82 lines
2.2 KiB
Go
82 lines
2.2 KiB
Go
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/**
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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 discover
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import (
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"fmt"
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"path/filepath"
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"strings"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
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)
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// mountsToContainerPath defines a Discoverer for a required set of mounts.
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// When these are discovered by a locator the specified container root is used
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// to construct the container path for the mount returned.
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type mountsToContainerPath struct {
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None
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logger logger.Interface
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locator lookup.Locator
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required []string
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containerRoot string
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}
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func (d *mountsToContainerPath) Mounts() ([]Mount, error) {
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seen := make(map[string]bool)
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var mounts []Mount
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for _, target := range d.required {
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if strings.Contains(target, "*") {
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// TODO: We could relax this condition.
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return nil, fmt.Errorf("wildcard patterns are not supported: %s", target)
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}
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candidates, err := d.locator.Locate(target)
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if err != nil {
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d.logger.Warningf("Could not locate %v: %v", target, err)
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continue
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}
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if len(candidates) == 0 {
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d.logger.Warningf("Missing %v", target)
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continue
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}
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hostPath := candidates[0]
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if seen[hostPath] {
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d.logger.Debugf("Skipping duplicate mount %v", hostPath)
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continue
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}
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seen[hostPath] = true
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d.logger.Debugf("Located %v as %v", target, hostPath)
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containerPath := filepath.Join(d.containerRoot, target)
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d.logger.Infof("Selecting %v as %v", hostPath, containerPath)
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mount := Mount{
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HostPath: hostPath,
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Path: containerPath,
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Options: []string{
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"ro",
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"nosuid",
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"nodev",
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"bind",
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},
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}
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mounts = append(mounts, mount)
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}
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return mounts, nil
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}
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