9f5182f394
This allows other packages and plugins to easily exec things without racing with the reaper. The reaper is mostly needed in the shim but can be removed in containerd in favor of the `exec.Cmd` apis Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
39 lines
1.0 KiB
Go
39 lines
1.0 KiB
Go
package server
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import (
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"context"
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"os"
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"github.com/containerd/cgroups"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/sys"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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// apply sets config settings on the server process
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func apply(ctx context.Context, config *Config) error {
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if config.OOMScore != 0 {
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log.G(ctx).Debugf("changing OOM score to %d", config.OOMScore)
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if err := sys.SetOOMScore(os.Getpid(), config.OOMScore); err != nil {
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log.G(ctx).WithError(err).Errorf("failed to change OOM score to %d", config.OOMScore)
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}
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}
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if config.Cgroup.Path != "" {
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cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(config.Cgroup.Path))
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if err != nil {
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if err != cgroups.ErrCgroupDeleted {
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return err
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}
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if cg, err = cgroups.New(cgroups.V1, cgroups.StaticPath(config.Cgroup.Path), &specs.LinuxResources{}); err != nil {
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return err
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}
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}
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if err := cg.Add(cgroups.Process{
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Pid: os.Getpid(),
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}); err != nil {
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return err
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}
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}
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return nil
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}
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