0a1a13448b
To reduce the binary size of containerd, we no longer import the `server` package for only a few defaults. This reduces the size of `ctr` by 2MB. There are probably other gains elsewhere. Signed-off-by: Stephen J Day <stephen.day@docker.com>
45 lines
1.1 KiB
Go
45 lines
1.1 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.Subreaper {
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log.G(ctx).Info("setting subreaper...")
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if err := sys.SetSubreaper(1); err != nil {
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return err
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}
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}
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if config.OOMScore != 0 {
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log.G(ctx).Infof("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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return err
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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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