Files
PandaX/apps/devops/services/k8s/statefulset/statefulset_pods.go
2022-01-26 14:13:23 +08:00

81 lines
2.5 KiB
Go

package statefulset
import (
"context"
"pandax/base/global"
"go.uber.org/zap"
apps "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"pandax/apps/devops/entity/k8s"
k8scommon "pandax/apps/devops/services/k8s/common"
"pandax/apps/devops/services/k8s/event"
"pandax/apps/devops/services/k8s/pods"
)
type PodList struct {
ListMeta k8s.ListMeta `json:"listMeta"`
// Basic information about resources status on the list.
Status k8scommon.ResourceStatus `json:"status"`
// Unordered list of Pods.
Pods []pods.Pod `json:"pods"`
}
// Returns simple info about pods(running, desired, failing, etc.) related to given pet set.
func getStatefulSetPodInfo(client kubernetes.Interface, statefulSet *apps.StatefulSet) (*k8scommon.PodInfo, error) {
podList, err := getRawStatefulSetPods(client, statefulSet.Name, statefulSet.Namespace)
if err != nil {
return nil, err
}
podInfo := k8scommon.GetPodInfo(statefulSet.Status.Replicas, statefulSet.Spec.Replicas, podList)
return &podInfo, nil
}
// getRawStatefulSetPods return array of api pods targeting pet set with given name.
func getRawStatefulSetPods(client kubernetes.Interface, name, namespace string) ([]v1.Pod, error) {
statefulSet, err := client.AppsV1().StatefulSets(namespace).Get(context.TODO(), name, metaV1.GetOptions{})
if err != nil {
return nil, err
}
channels := &k8scommon.ResourceChannels{
PodList: k8scommon.GetPodListChannel(client, k8scommon.NewSameNamespaceQuery(namespace), 1),
}
podList := <-channels.PodList.List
if err := <-channels.PodList.Error; err != nil {
return nil, err
}
return k8scommon.FilterPodsByControllerRef(statefulSet, podList.Items), nil
}
func getStatefulSetToPod(client *kubernetes.Clientset, stateful *apps.StatefulSet) (po *PodList) {
selector, err := metaV1.LabelSelectorAsSelector(stateful.Spec.Selector)
if err != nil {
return nil
}
options := metaV1.ListOptions{LabelSelector: selector.String()}
podData, err := client.CoreV1().Pods(stateful.Namespace).List(context.TODO(), options)
if err != nil {
global.Log.Error("Get a pod exception from the statefulSet", zap.Any("err", err))
}
podList := PodList{
Pods: make([]pods.Pod, 0),
}
podList.ListMeta = k8s.ListMeta{TotalItems: len(podData.Items)}
for _, pod := range podData.Items {
warnings := event.GetPodsEventWarnings(nil, []v1.Pod{pod})
podDetail := pods.ToPod(&pod, warnings)
podList.Pods = append(podList.Pods, podDetail)
}
return &podList
}