26d4c2c217
This is needed for users on kernel older than 3.18 so they can avoid EBUSY errors when trying to unlink, rename or remove a mountpoint that is present in a shim namespace. Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
35 lines
680 B
Go
35 lines
680 B
Go
// +build linux
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package shim
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import (
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"os/exec"
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"syscall"
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"github.com/containerd/cgroups"
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"github.com/pkg/errors"
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)
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func getSysProcAttr(nonewns bool) *syscall.SysProcAttr {
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attr := syscall.SysProcAttr{
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Setpgid: true,
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}
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if !nonewns {
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attr.Cloneflags = syscall.CLONE_NEWNS
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}
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return &attr
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}
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func setCgroup(cgroupPath string, cmd *exec.Cmd) error {
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cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(cgroupPath))
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if err != nil {
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return errors.Wrapf(err, "failed to load cgroup %s", cgroupPath)
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}
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if err := cg.Add(cgroups.Process{
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Pid: cmd.Process.Pid,
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}); err != nil {
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return errors.Wrapf(err, "failed to join cgroup %s", cgroupPath)
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}
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return nil
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}
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