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job.go
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job.go
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package kubeapi
/*
Copyright 2017-2019 Crunchy Data Solutions, Inc.
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.
*/
import (
"errors"
"fmt"
"time"
log "github.com/sirupsen/logrus"
v1batch "k8s.io/api/batch/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
)
// GetJobs gets a list of jobs using a label selector
func GetJobs(clientset *kubernetes.Clientset, selector, namespace string) (*v1batch.JobList, error) {
lo := meta_v1.ListOptions{LabelSelector: selector}
jobs, err := clientset.Batch().Jobs(namespace).List(lo)
if err != nil {
log.Error(err)
log.Error("error getting Job list selector[" + selector + "]")
}
return jobs, err
}
// GetJob gets a Job by name
func GetJob(clientset *kubernetes.Clientset, name, namespace string) (*v1batch.Job, bool) {
job, err := clientset.Batch().Jobs(namespace).Get(name, meta_v1.GetOptions{})
if kerrors.IsNotFound(err) {
log.Debug(err)
return job, false
}
if err != nil {
log.Error(err)
return job, false
}
return job, true
}
// DeleteJob deletes a job
func DeleteJob(clientset *kubernetes.Clientset, jobName, namespace string) error {
log.Debugf("deleting Job with Name=%s in namespace %s", jobName, namespace)
delOptions := meta_v1.DeleteOptions{}
var delProp meta_v1.DeletionPropagation
delProp = meta_v1.DeletePropagationForeground
delOptions.PropagationPolicy = &delProp
//delete the job
err := clientset.Batch().Jobs(namespace).Delete(jobName,
&delOptions)
if err != nil {
log.Error("error deleting Job " + jobName + err.Error())
return err
}
log.Info("deleted Job " + jobName)
return err
}
// CreateJob deletes a backup job
func CreateJob(clientset *kubernetes.Clientset, job *v1batch.Job, namespace string) (string, error) {
result, err := clientset.Batch().Jobs(namespace).Create(job)
if err != nil {
log.Error("error creating Job " + job.Name + err.Error())
return job.Name, err
}
log.Debug("created Job " + result.Name)
return result.Name, err
}
// DeleteJobs deletes all jobs that match a selector
func DeleteJobs(clientset *kubernetes.Clientset, selector, namespace string) error {
log.Debugf("deleting Jobs with selector=%s in namespace %s", selector, namespace)
//delete the job
delOptions := meta_v1.DeleteOptions{}
var delProp meta_v1.DeletionPropagation
delProp = meta_v1.DeletePropagationForeground
delOptions.PropagationPolicy = &delProp
lo := meta_v1.ListOptions{LabelSelector: selector}
err := clientset.Batch().Jobs(namespace).DeleteCollection(&delOptions, lo)
if err != nil {
log.Error("error deleting Jobs " + selector + err.Error())
return err
}
return err
}
func IsJobComplete(client *kubernetes.Clientset, namespace string, job *v1batch.Job, timeout time.Duration) error {
duration := time.After(timeout)
tick := time.Tick(500 * time.Millisecond)
for {
select {
case <-duration:
return fmt.Errorf("timed out waiting for job to complete: %s", job.Name)
case <-tick:
j, found := GetJob(client, job.Name, namespace)
if !found {
return errors.New("Job not found")
}
if j.Status.Failed != 0 {
return errors.New("job failed to run")
}
if j.Status.Succeeded != 0 {
return nil
}
}
}
}
func IsJobDeleted(client *kubernetes.Clientset, namespace string, job *v1batch.Job, timeout time.Duration) error {
duration := time.After(timeout)
tick := time.Tick(500 * time.Millisecond)
for {
select {
case <-duration:
return fmt.Errorf("timed out waiting for job to delete: %s", job.Name)
case <-tick:
_, found := GetJob(client, job.Name, namespace)
if !found {
return nil
}
}
}
}