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cronjob.go
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cronjob.go
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/*
Copyright 2021 KubeCube 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 cronjob
import (
"context"
"fmt"
batchv1 "k8s.io/api/batch/v1"
batchv1beta1 "k8s.io/api/batch/v1beta1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/cache"
"sigs.k8s.io/controller-runtime/pkg/client"
resourcemanage "github.com/kubecube-io/kubecube/pkg/apiserver/cubeapi/resourcemanage/handle"
"github.com/kubecube-io/kubecube/pkg/apiserver/cubeapi/resourcemanage/resources"
"github.com/kubecube-io/kubecube/pkg/apiserver/cubeapi/resourcemanage/resources/enum"
jobRes "github.com/kubecube-io/kubecube/pkg/apiserver/cubeapi/resourcemanage/resources/job"
"github.com/kubecube-io/kubecube/pkg/clients"
"github.com/kubecube-io/kubecube/pkg/clog"
"github.com/kubecube-io/kubecube/pkg/conversion"
"github.com/kubecube-io/kubecube/pkg/utils/errcode"
"github.com/kubecube-io/kubecube/pkg/utils/filter"
)
type CronJob struct {
ctx context.Context
client client.Client
cache cache.Cache
namespace string
filterCondition *filter.Condition
}
func init() {
resourcemanage.SetExtendHandler(enum.CronResourceType, handle)
}
func handle(param resourcemanage.ExtendContext) (interface{}, *errcode.ErrorInfo) {
access := resources.NewSimpleAccess(param.Cluster, param.Username, param.Namespace)
if allow := access.AccessAllow("batch", "cronjobs", "list"); !allow {
return nil, errcode.ForbiddenErr
}
kubernetes := clients.Interface().Kubernetes(param.Cluster)
if kubernetes == nil {
return nil, errcode.ClusterNotFoundError(param.Cluster)
}
convertor, err := conversion.NewVersionConvertor(kubernetes.CacheDiscovery(), kubernetes.RESTMapper())
if err != nil {
return nil, errcode.BadRequest(err)
}
client := conversion.WrapClient(kubernetes.Direct(), convertor, true)
cache := conversion.WrapCache(kubernetes.Cache(), convertor)
cronjob := NewCronJob(client, cache, param.Namespace, param.FilterCondition)
if param.ResourceName == "" {
return cronjob.getExtendCronJobs()
} else {
return cronjob.getExtendCronJob(param.ResourceName)
}
}
func NewCronJob(client client.Client, cache cache.Cache, namespace string, condition *filter.Condition) CronJob {
ctx := context.Background()
return CronJob{
ctx: ctx,
client: client,
cache: cache,
namespace: namespace,
filterCondition: condition,
}
}
// getExtendCronJobs get extend deployments
func (c *CronJob) getExtendCronJobs() (*unstructured.Unstructured, *errcode.ErrorInfo) {
resultMap := make(map[string]interface{})
// get deployment list from k8s cluster
var cronJobList batchv1beta1.CronJobList
err := c.cache.List(c.ctx, &cronJobList, client.InNamespace(c.namespace))
if err != nil {
clog.Error("can not find cronjob in %s from cluster, %v", c.namespace, err)
return nil, errcode.BadRequest(err)
}
// filter list by selector/sort/page
total, err := filter.GetEmptyFilter().FilterObjectList(&cronJobList, c.filterCondition)
if err != nil {
clog.Error("can not filter cronjob, err: %s", err.Error())
return nil, errcode.BadRequest(err)
}
// add pod status info
resultList := c.addExtendInfo(cronJobList)
resultMap["total"] = total
resultMap["items"] = resultList
return &unstructured.Unstructured{Object: resultMap}, nil
}
// getExtendCronJob get extend deployments
func (c *CronJob) getExtendCronJob(name string) (*unstructured.Unstructured, *errcode.ErrorInfo) {
// get deployment list from k8s cluster
var cronJob batchv1beta1.CronJob
err := c.cache.Get(c.ctx, types.NamespacedName{Namespace: c.namespace, Name: name}, &cronJob)
if err != nil {
clog.Error("can not find cronjob %s/%s from cluster, %v", c.namespace, name, err)
return nil, errcode.BadRequest(err)
}
var cronJobList batchv1beta1.CronJobList
cronJobList.Items = []batchv1beta1.CronJob{cronJob}
resultList := c.addExtendInfo(cronJobList)
if len(resultList) == 0 {
return nil, errcode.BadRequest(fmt.Errorf("can not parse cronjob %s/%s", c.namespace, name))
}
return &resultList[0], nil
}
func (c *CronJob) addExtendInfo(cronJobList batchv1beta1.CronJobList) []unstructured.Unstructured {
resultList := make([]unstructured.Unstructured, 0)
jobArrMap := c.getOwnerJobs()
for _, cronJob := range cronJobList.Items {
// parse job status
status := parseCronJobStatus(cronJob)
jobArr, ok := jobArrMap[string(cronJob.UID)]
runningJobCount := 0
if ok {
for _, job := range jobArr {
extendInfo := job.(map[string]interface{})["extendInfo"]
extendInfoStatus := extendInfo.(map[string]interface{})["status"].(string)
if extendInfoStatus == "Running" {
runningJobCount++
}
}
}
extendInfo := make(map[string]interface{})
extendInfo["status"] = status
extendInfo["runningJobCount"] = runningJobCount
extendInfo["jobCount"] = len(jobArr)
extendInfo["jobs"] = jobArr
// create result map
result := make(map[string]interface{})
result["metadata"] = cronJob.ObjectMeta
result["spec"] = cronJob.Spec
result["status"] = cronJob.Status
result["extendInfo"] = extendInfo
res := unstructured.Unstructured{
Object: result,
}
resultList = append(resultList, res)
}
return resultList
}
func (c *CronJob) getOwnerJobs() map[string][]interface{} {
result := make(map[string][]interface{})
var jobList batchv1.JobList
err := c.cache.List(c.ctx, &jobList, client.InNamespace(c.namespace))
if err != nil {
clog.Error("can not find jobs from cluster, %v", err)
return nil
}
for _, job := range jobList.Items {
if len(job.OwnerReferences) == 0 {
continue
}
uid := string(job.OwnerReferences[0].UID)
status := jobRes.ParseJobStatus(job)
extendInfo := make(map[string]interface{})
extendInfo["status"] = status
// create result map
jobMap := make(map[string]interface{})
jobMap["metadata"] = job.ObjectMeta
jobMap["spec"] = job.Spec
jobMap["status"] = job.Status
jobMap["extendInfo"] = extendInfo
if jobArr, ok := result[uid]; ok {
jobArr = append(jobArr, jobMap)
result[uid] = jobArr
} else {
var jobArrTemp []interface{}
jobArrTemp = append(jobArrTemp, jobMap)
result[uid] = jobArrTemp
}
}
return result
}
func parseCronJobStatus(cronjob batchv1beta1.CronJob) (status string) {
if *cronjob.Spec.Suspend {
return "Fail"
}
return "Running"
}