volcano/pkg/controllers/job/helpers/helpers.go

73 lines
1.8 KiB
Go

/*
Copyright 2019 The Volcano 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 helpers
import (
"fmt"
"math/rand"
"strings"
"time"
"k8s.io/api/core/v1"
"volcano.sh/volcano/pkg/controllers/apis"
)
const (
// PodNameFmt pod name format
PodNameFmt = "%s-%s-%d"
// persistentVolumeClaimFmt represents persistent volume claim name format
persistentVolumeClaimFmt = "%s-pvc-%s"
)
// GetTaskIndex returns task Index
func GetTaskIndex(pod *v1.Pod) string {
num := strings.Split(pod.Name, "-")
if len(num) >= 3 {
return num[len(num)-1]
}
return ""
}
// MakePodName creates pod name
func MakePodName(jobName string, taskName string, index int) string {
return fmt.Sprintf(PodNameFmt, jobName, taskName, index)
}
// GenRandomStr generate random str with specified length l
func GenRandomStr(l int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyz"
bytes := []byte(str)
var result []byte
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < l; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GenPVCName generates pvc name with job name
func GenPVCName(jobName string) string {
return fmt.Sprintf(persistentVolumeClaimFmt, jobName, GenRandomStr(12))
}
// GetJobKeyByReq gets the key for the job request
func GetJobKeyByReq(req *apis.Request) string {
return fmt.Sprintf("%s/%s", req.Namespace, req.JobName)
}