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detail.go
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/
detail.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 replicaset
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"
ds "github.com/kubernetes/dashboard/src/app/backend/resource/dataselect"
"github.com/kubernetes/dashboard/src/app/backend/resource/event"
hpa "github.com/kubernetes/dashboard/src/app/backend/resource/horizontalpodautoscaler"
"github.com/kubernetes/dashboard/src/app/backend/resource/pod"
resourceService "github.com/kubernetes/dashboard/src/app/backend/resource/service"
apps "k8s.io/api/apps/v1beta2"
metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sClient "k8s.io/client-go/kubernetes"
)
// ReplicaSetDetail is a presentation layer view of Kubernetes Replica Set resource. This means
// it is Replica Set plus additional augmented data we can get from other sources
// (like services that target the same pods).
type ReplicaSetDetail struct {
ObjectMeta api.ObjectMeta `json:"objectMeta"`
TypeMeta api.TypeMeta `json:"typeMeta"`
// Aggregate information about pods belonging to this Replica Set.
PodInfo common.PodInfo `json:"podInfo"`
// Detailed information about Pods belonging to this Replica Set.
PodList pod.PodList `json:"podList"`
// Detailed information about service related to Replica Set.
ServiceList resourceService.ServiceList `json:"serviceList"`
// Container images of the Replica Set.
ContainerImages []string `json:"containerImages"`
// Init Container images of the Replica Set.
InitContainerImages []string `json:"initContainerImages"`
// List of events related to this Replica Set.
EventList common.EventList `json:"eventList"`
// Selector of this replica set.
Selector *metaV1.LabelSelector `json:"selector"`
// List of Horizontal Pod Autoscalers targeting this Replica Set.
HorizontalPodAutoscalerList hpa.HorizontalPodAutoscalerList `json:"horizontalPodAutoscalerList"`
// List of non-critical errors, that occurred during resource retrieval.
Errors []error `json:"errors"`
}
// GetReplicaSetDetail gets replica set details.
func GetReplicaSetDetail(client k8sClient.Interface, metricClient metricapi.MetricClient,
namespace, name string) (*ReplicaSetDetail, error) {
log.Printf("Getting details of %s service in %s namespace", name, namespace)
rs, err := client.AppsV1beta2().ReplicaSets(namespace).Get(name, metaV1.GetOptions{})
if err != nil {
return nil, err
}
eventList, err := event.GetResourceEvents(client, ds.DefaultDataSelect, rs.Namespace, rs.Name)
nonCriticalErrors, criticalError := errors.HandleError(err)
if criticalError != nil {
return nil, criticalError
}
podList, err := GetReplicaSetPods(client, metricClient, ds.DefaultDataSelectWithMetrics, name, namespace)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
podInfo, err := getReplicaSetPodInfo(client, rs)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
serviceList, err := GetReplicaSetServices(client, ds.DefaultDataSelect, namespace, name)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
hpas, err := hpa.GetHorizontalPodAutoscalerListForResource(client, namespace, "ReplicaSet", name)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
rsDetail := toReplicaSetDetail(rs, *eventList, *podList, *podInfo, *serviceList, *hpas, nonCriticalErrors)
return &rsDetail, nil
}
func toReplicaSetDetail(replicaSet *apps.ReplicaSet, eventList common.EventList, podList pod.PodList,
podInfo common.PodInfo, serviceList resourceService.ServiceList,
hpas hpa.HorizontalPodAutoscalerList, nonCriticalErrors []error) ReplicaSetDetail {
return ReplicaSetDetail{
ObjectMeta: api.NewObjectMeta(replicaSet.ObjectMeta),
TypeMeta: api.NewTypeMeta(api.ResourceKindReplicaSet),
ContainerImages: common.GetContainerImages(&replicaSet.Spec.Template.Spec),
InitContainerImages: common.GetInitContainerImages(&replicaSet.Spec.Template.Spec),
Selector: replicaSet.Spec.Selector,
PodInfo: podInfo,
PodList: podList,
ServiceList: serviceList,
EventList: eventList,
HorizontalPodAutoscalerList: hpas,
Errors: nonCriticalErrors,
}
}