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event.go
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event.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package storage
import (
"context"
"sort"
corev1 "k8s.io/api/core/v1"
extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
platforminternalclient "tkestack.io/tke/api/client/clientset/internalversion/typed/platform/internalversion"
"tkestack.io/tke/pkg/platform/proxy"
"tkestack.io/tke/pkg/platform/util"
)
// EventREST implements the REST endpoint for find events by a daemonset.
type EventREST struct {
rest.Storage
platformClient platforminternalclient.PlatformInterface
}
var _ rest.Getter = &EventREST{}
var _ rest.GroupVersionKindProvider = &EventREST{}
// GroupVersionKind is used to specify a particular GroupVersionKind to discovery.
func (r *EventREST) GroupVersionKind(containingGV schema.GroupVersion) schema.GroupVersionKind {
return corev1.SchemeGroupVersion.WithKind("EventList")
}
// New returns an empty object that can be used with Create and Update after
// request data has been put into it.
func (r *EventREST) New() runtime.Object {
return &corev1.EventList{}
}
// Get retrieves the object from the storage. It is required to support Patch.
func (r *EventREST) Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error) {
client, err := proxy.ClientSet(ctx, r.platformClient)
if err != nil {
return nil, err
}
namespaceName, ok := request.NamespaceFrom(ctx)
if !ok {
return nil, errors.NewBadRequest("a namespace must be specified")
}
service, err := client.CoreV1().Services(namespaceName).Get(ctx, name, *options)
if err != nil {
return nil, errors.NewNotFound(extensionsv1beta1.Resource("services/events"), name)
}
selector := fields.AndSelectors(
fields.OneTermEqualSelector("involvedObject.uid", string(service.UID)),
fields.OneTermEqualSelector("involvedObject.name", service.Name),
fields.OneTermEqualSelector("involvedObject.namespace", service.Namespace),
fields.OneTermEqualSelector("involvedObject.kind", "Service"))
listOptions := metav1.ListOptions{
FieldSelector: selector.String(),
}
serviceEvents, err := client.CoreV1().Events(namespaceName).List(ctx, listOptions)
if err != nil {
return nil, err
}
var events util.EventSlice
for _, serviceEvent := range serviceEvents.Items {
events = append(events, serviceEvent)
}
if len(service.Spec.Selector) > 0 {
podSelector := labels.FormatLabels(service.Spec.Selector)
podListOptions := metav1.ListOptions{LabelSelector: podSelector}
podListByRS, err := client.CoreV1().Pods(namespaceName).List(ctx, podListOptions)
if err != nil {
return nil, err
}
for _, pod := range podListByRS.Items {
podEventsSelector := fields.AndSelectors(
fields.OneTermEqualSelector("involvedObject.uid", string(pod.UID)),
fields.OneTermEqualSelector("involvedObject.name", pod.Name),
fields.OneTermEqualSelector("involvedObject.namespace", pod.Namespace),
fields.OneTermEqualSelector("involvedObject.kind", "Pod"))
podEventsListOptions := metav1.ListOptions{
FieldSelector: podEventsSelector.String(),
}
podEvents, err := client.CoreV1().Events(namespaceName).List(ctx, podEventsListOptions)
if err != nil {
return nil, err
}
for _, podEvent := range podEvents.Items {
events = append(events, podEvent)
}
}
sort.Sort(events)
}
return &corev1.EventList{
Items: events,
}, nil
}