80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
// +build !windows
|
|
|
|
/*
|
|
Copyright 2020 The Kubernetes Authors All rights reserved.
|
|
|
|
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 schedule
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"strconv"
|
|
"time"
|
|
|
|
"github.com/VividCortex/godaemon"
|
|
"github.com/pkg/errors"
|
|
"k8s.io/klog"
|
|
"k8s.io/minikube/pkg/minikube/localpath"
|
|
)
|
|
|
|
func killExistingScheduledStops(profiles []string) error {
|
|
for _, profile := range profiles {
|
|
file := localpath.PID(profile)
|
|
f, err := ioutil.ReadFile(file)
|
|
if os.IsNotExist(err) {
|
|
return nil
|
|
}
|
|
defer os.Remove(file)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "reading %s", file)
|
|
}
|
|
pid, err := strconv.Atoi(string(f))
|
|
if err != nil {
|
|
return errors.Wrapf(err, "converting %v to int", string(f))
|
|
}
|
|
p, err := os.FindProcess(pid)
|
|
if err != nil {
|
|
return errors.Wrap(err, "finding process")
|
|
}
|
|
klog.Infof("killing process %v as it is an old scheduled stop", pid)
|
|
if err := p.Kill(); err != nil {
|
|
return errors.Wrapf(err, "killing %v", pid)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func daemonize(profiles []string, duration time.Duration) error {
|
|
_, _, err := godaemon.MakeDaemon(&godaemon.DaemonAttr{})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// now that this process has daemonized, it has a new PID
|
|
pid := os.Getpid()
|
|
return savePIDs(pid, profiles)
|
|
}
|
|
|
|
func savePIDs(pid int, profiles []string) error {
|
|
for _, p := range profiles {
|
|
file := localpath.PID(p)
|
|
if err := ioutil.WriteFile(file, []byte(fmt.Sprintf("%v", pid)), 0644); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|