45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package server
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
|
|
"github.com/containerd/cgroups"
|
|
"github.com/containerd/containerd/log"
|
|
"github.com/containerd/containerd/sys"
|
|
specs "github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
// apply sets config settings on the server process
|
|
func apply(ctx context.Context, config *Config) error {
|
|
if !config.NoSubreaper {
|
|
log.G(ctx).Info("setting subreaper...")
|
|
if err := sys.SetSubreaper(1); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if config.OOMScore != 0 {
|
|
log.G(ctx).Debugf("changing OOM score to %d", config.OOMScore)
|
|
if err := sys.SetOOMScore(os.Getpid(), config.OOMScore); err != nil {
|
|
log.G(ctx).WithError(err).Errorf("failed to change OOM score to %d", config.OOMScore)
|
|
}
|
|
}
|
|
if config.Cgroup.Path != "" {
|
|
cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(config.Cgroup.Path))
|
|
if err != nil {
|
|
if err != cgroups.ErrCgroupDeleted {
|
|
return err
|
|
}
|
|
if cg, err = cgroups.New(cgroups.V1, cgroups.StaticPath(config.Cgroup.Path), &specs.LinuxResources{}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if err := cg.Add(cgroups.Process{
|
|
Pid: os.Getpid(),
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|