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https://github.com/NVIDIA/nvidia-container-toolkit
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ec29b602c3
This change uses the reexec package to run the update of the ldcache in a container in a process with isolated namespaces. Since the hook is invoked as a createContainer hook, these namespaces are cloned from the container's namespaces. In the reexec handler, we further isolate the proc filesystem, mount the host ldconfig to a tmpfs, and pivot into the containers root. Signed-off-by: Evan Lezar <elezar@nvidia.com>
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
//go:build !linux
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/**
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# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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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 ldcache
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import (
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"fmt"
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"os"
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"os/exec"
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"github.com/moby/sys/reexec"
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)
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func pivotRoot(newroot string) error {
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return fmt.Errorf("not supported")
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}
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func mountLdConfig(hostLdconfigPath string, containerRootDirPath string) (string, error) {
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return "", fmt.Errorf("not supported")
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}
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func mountProc(newroot string) error {
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return fmt.Errorf("not supported")
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}
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// createReexecCommand creates a command that can be used ot trigger the reexec
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// initializer.
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func createReexecCommand(args []string) *exec.Cmd {
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cmd := reexec.Command(args...)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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return cmd
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}
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