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https://github.com/NVIDIA/nvidia-container-toolkit
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232df647c1
Instead of relying solely on a static config, we resolve the path to ldconfig. The path is checked for existence and a .real suffix is preferred. Signed-off-by: Evan Lezar <elezar@nvidia.com>
63 lines
2.2 KiB
Go
63 lines
2.2 KiB
Go
/**
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# Copyright (c) 2022, 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 config
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import (
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"os"
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"strings"
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)
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// ContainerCLIConfig stores the options for the nvidia-container-cli
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type ContainerCLIConfig struct {
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Root string `toml:"root"`
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Path string `toml:"path"`
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Environment []string `toml:"environment"`
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Debug string `toml:"debug"`
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Ldcache string `toml:"ldcache"`
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LoadKmods bool `toml:"load-kmods"`
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// NoPivot disables the pivot root operation in the NVIDIA Container CLI.
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// This is not exposed in the config if not set.
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NoPivot bool `toml:"no-pivot,omitempty"`
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NoCgroups bool `toml:"no-cgroups"`
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User string `toml:"user"`
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Ldconfig string `toml:"ldconfig"`
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}
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// NormalizeLDConfigPath returns the resolved path of the configured LDConfig binary.
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// This is only done for host LDConfigs and is required to handle systems where
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// /sbin/ldconfig is a wrapper around /sbin/ldconfig.real.
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func (c *ContainerCLIConfig) NormalizeLDConfigPath() string {
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return NormalizeLDConfigPath(c.Ldconfig)
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}
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// NormalizeLDConfigPath returns the resolved path of the configured LDConfig binary.
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// This is only done for host LDConfigs and is required to handle systems where
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// /sbin/ldconfig is a wrapper around /sbin/ldconfig.real.
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func NormalizeLDConfigPath(path string) string {
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if !strings.HasPrefix(path, "@") {
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return path
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}
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trimmedPath := strings.TrimSuffix(strings.TrimPrefix(path, "@"), ".real")
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// If the .real path exists, we return that.
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if _, err := os.Stat(trimmedPath + ".real"); err == nil {
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return "@" + trimmedPath + ".real"
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}
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// If the .real path does not exists (or cannot be read) we return the non-.real path.
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return "@" + trimmedPath
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}
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