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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 service
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/endpoint"
"github.com/kubernetes/dashboard/src/app/backend/resource/pod"
"k8s.io/api/core/v1"
metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sClient "k8s.io/client-go/kubernetes"
)
// Service is a representation of a service.
type ServiceDetail struct {
ObjectMeta api.ObjectMeta `json:"objectMeta"`
TypeMeta api.TypeMeta `json:"typeMeta"`
// InternalEndpoint of all Kubernetes services that have the same label selector as connected Replication
// Controller. Endpoints is DNS name merged with ports.
InternalEndpoint common.Endpoint `json:"internalEndpoint"`
// ExternalEndpoints of all Kubernetes services that have the same label selector as connected Replication
// Controller. Endpoints is external IP address name merged with ports.
ExternalEndpoints []common.Endpoint `json:"externalEndpoints"`
// List of Endpoint obj. that are endpoints of this Service.
EndpointList endpoint.EndpointList `json:"endpointList"`
// Label selector of the service.
Selector map[string]string `json:"selector"`
// Type determines how the service will be exposed. Valid options: ClusterIP, NodePort, LoadBalancer
Type v1.ServiceType `json:"type"`
// ClusterIP is usually assigned by the master. Valid values are None, empty string (""), or
// a valid IP address. None can be specified for headless services when proxying is not required
ClusterIP string `json:"clusterIP"`
// List of events related to this Service
EventList common.EventList `json:"eventList"`
// PodList represents list of pods targeted by same label selector as this service.
PodList pod.PodList `json:"podList"`
// Show the value of the SessionAffinity of the Service.
SessionAffinity v1.ServiceAffinity `json:"sessionAffinity"`
// List of non-critical errors, that occurred during resource retrieval.
Errors []error `json:"errors"`
}
// GetServiceDetail gets service details.
func GetServiceDetail(client k8sClient.Interface, metricClient metricapi.MetricClient, namespace, name string,
dsQuery *dataselect.DataSelectQuery) (*ServiceDetail, error) {
log.Printf("Getting details of %s service in %s namespace", name, namespace)
serviceData, err := client.CoreV1().Services(namespace).Get(name, metaV1.GetOptions{})
if err != nil {
return nil, err
}
endpointList, err := endpoint.GetServiceEndpoints(client, namespace, name)
nonCriticalErrors, criticalError := errors.HandleError(err)
if criticalError != nil {
return nil, criticalError
}
podList, err := GetServicePods(client, metricClient, namespace, name, dsQuery)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
eventList, err := GetServiceEvents(client, dataselect.DefaultDataSelect, namespace, name)
nonCriticalErrors, criticalError = errors.AppendError(err, nonCriticalErrors)
if criticalError != nil {
return nil, criticalError
}
service := ToServiceDetail(serviceData, *eventList, *podList, *endpointList, nonCriticalErrors)
return &service, nil
}