Files
kata-containers/vendor/github.com/containerd/containerd/sys/oom_unix.go
Eric Ernst 7acdaa2d53 shimv2: Revert shimv2, vendor commits
This reverts:
 - 590ed09 vendor: update gogo/protobuf, containerd and agent vendors
 - eabfd99 shimv2: Improve shim shutdown logic

These introduce a regression for starting pods with k8s 1.14 + contaienr
1.2.6

Fixes: #1781

Signed-off-by: Eric Ernst <eric.ernst@intel.com>
2019-06-10 09:45:23 -07:00

48 lines
1.3 KiB
Go

// +build !windows
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
import (
"fmt"
"os"
"strconv"
"github.com/opencontainers/runc/libcontainer/system"
)
// OOMScoreMaxKillable is the maximum score keeping the process killable by the oom killer
const OOMScoreMaxKillable = -999
// SetOOMScore sets the oom score for the provided pid
func SetOOMScore(pid, score int) error {
path := fmt.Sprintf("/proc/%d/oom_score_adj", pid)
f, err := os.OpenFile(path, os.O_WRONLY, 0)
if err != nil {
return err
}
defer f.Close()
if _, err = f.WriteString(strconv.Itoa(score)); err != nil {
if os.IsPermission(err) && (system.RunningInUserNS() || RunningUnprivileged()) {
return nil
}
return err
}
return nil
}