forked from kubernetes/dashboard
/
list.go
184 lines (153 loc) · 6.34 KB
/
list.go
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// Copyright 2017 The Kubernetes 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 job
import (
"log"
"github.com/kubernetes/dashboard/src/app/backend/api"
"github.com/kubernetes/dashboard/src/app/backend/errors"
metricapi "github.com/kubernetes/dashboard/src/app/backend/integration/metric/api"
"github.com/kubernetes/dashboard/src/app/backend/resource/common"
"github.com/kubernetes/dashboard/src/app/backend/resource/dataselect"
"github.com/kubernetes/dashboard/src/app/backend/resource/event"
batch "k8s.io/api/batch/v1"
"k8s.io/api/core/v1"
client "k8s.io/client-go/kubernetes"
)
// JobList contains a list of Jobs in the cluster.
type JobList struct {
ListMeta api.ListMeta `json:"listMeta"`
CumulativeMetrics []metricapi.Metric `json:"cumulativeMetrics"`
// Basic information about resources status on the list.
Status common.ResourceStatus `json:"status"`
// Unordered list of Jobs.
Jobs []Job `json:"jobs"`
// List of non-critical errors, that occurred during resource retrieval.
Errors []error `json:"errors"`
}
type JobStatusType string
const (
// JobRunning means the job is still running.
JobStatusRunning JobStatusType = "Running"
// JobComplete means the job has completed its execution.
JobStatusComplete JobStatusType = "Complete"
// JobFailed means the job has failed its execution.
JobStatusFailed JobStatusType = "Failed"
)
type JobStatus struct {
// Short, machine understandable job status code.
Status JobStatusType `json:"status"`
// A human-readable description of the status of related job.
Message string `json:"message"`
}
// Job is a presentation layer view of Kubernetes Job resource. This means it is Job plus additional
// augmented data we can get from other sources
type Job struct {
ObjectMeta api.ObjectMeta `json:"objectMeta"`
TypeMeta api.TypeMeta `json:"typeMeta"`
// Aggregate information about pods belonging to this Job.
Pods common.PodInfo `json:"pods"`
// Container images of the Job.
ContainerImages []string `json:"containerImages"`
// Init Container images of the Job.
InitContainerImages []string `json:"initContainerImages"`
// number of parallel jobs defined.
Parallelism *int32 `json:"parallelism"`
// JobStatus contains inferred job status based on job conditions
JobStatus JobStatus `json:"jobStatus"`
}
// GetJobList returns a list of all Jobs in the cluster.
func GetJobList(client client.Interface, nsQuery *common.NamespaceQuery,
dsQuery *dataselect.DataSelectQuery, metricClient metricapi.MetricClient) (*JobList, error) {
log.Print("Getting list of all jobs in the cluster")
channels := &common.ResourceChannels{
JobList: common.GetJobListChannel(client, nsQuery, 1),
PodList: common.GetPodListChannel(client, nsQuery, 1),
EventList: common.GetEventListChannel(client, nsQuery, 1),
}
return GetJobListFromChannels(channels, dsQuery, metricClient)
}
// GetJobListFromChannels returns a list of all Jobs in the cluster reading required resource list once from the channels.
func GetJobListFromChannels(channels *common.ResourceChannels, dsQuery *dataselect.DataSelectQuery,
metricClient metricapi.MetricClient) (*JobList, error) {
jobs := <-channels.JobList.List
err := <-channels.JobList.Error
nonCriticalErrors, criticalError := errors.HandleError(err)
if criticalError != nil {
return nil, criticalError
}
pods := <-channels.PodList.List
err = <-channels.PodList.Error
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
events := <-channels.EventList.List
err = <-channels.EventList.Error
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
jobList := ToJobList(jobs.Items, pods.Items, events.Items, nonCriticalErrors, dsQuery, metricClient)
jobList.Status = getStatus(jobs, pods.Items, events.Items)
return jobList, nil
}
func ToJobList(jobs []batch.Job, pods []v1.Pod, events []v1.Event, nonCriticalErrors []error,
dsQuery *dataselect.DataSelectQuery, metricClient metricapi.MetricClient) *JobList {
jobList := &JobList{
Jobs: make([]Job, 0),
ListMeta: api.ListMeta{TotalItems: len(jobs)},
Errors: nonCriticalErrors,
}
cachedResources := &metricapi.CachedResources{
Pods: pods,
}
jobCells, metricPromises, filteredTotal := dataselect.GenericDataSelectWithFilterAndMetrics(ToCells(jobs),
dsQuery, cachedResources, metricClient)
jobs = FromCells(jobCells)
jobList.ListMeta = api.ListMeta{TotalItems: filteredTotal}
for _, job := range jobs {
matchingPods := common.FilterPodsForJob(job, pods)
podInfo := common.GetPodInfo(job.Status.Active, job.Spec.Completions, matchingPods)
podInfo.Warnings = event.GetPodsEventWarnings(events, matchingPods)
jobList.Jobs = append(jobList.Jobs, toJob(&job, &podInfo))
}
cumulativeMetrics, err := metricPromises.GetMetrics()
jobList.CumulativeMetrics = cumulativeMetrics
if err != nil {
jobList.CumulativeMetrics = make([]metricapi.Metric, 0)
}
return jobList
}
func toJob(job *batch.Job, podInfo *common.PodInfo) Job {
jobStatus := JobStatus{Status: JobStatusRunning}
for _, condition := range job.Status.Conditions {
if condition.Type == batch.JobComplete && condition.Status == v1.ConditionTrue {
jobStatus.Status = JobStatusComplete
break
} else if condition.Type == batch.JobFailed && condition.Status == v1.ConditionTrue {
jobStatus.Status = JobStatusFailed
jobStatus.Message = condition.Message
break
}
}
return Job{
ObjectMeta: api.NewObjectMeta(job.ObjectMeta),
TypeMeta: api.NewTypeMeta(api.ResourceKindJob),
ContainerImages: common.GetContainerImages(&job.Spec.Template.Spec),
InitContainerImages: common.GetInitContainerImages(&job.Spec.Template.Spec),
Pods: *podInfo,
JobStatus: jobStatus,
Parallelism: job.Spec.Parallelism,
}
}