309 lines
8.2 KiB
Go
309 lines
8.2 KiB
Go
/*
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Copyright 2018 The KubeSphere Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controllers
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import (
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"encoding/json"
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"fmt"
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"time"
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"github.com/golang/glog"
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"k8s.io/api/core/v1"
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metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/tools/cache"
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)
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const inUse = "kubesphere.io/in_use_pods"
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func (ctl *PodCtl) addAnnotationToPvc(item v1.Pod) {
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volumes := item.Spec.Volumes
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for _, volume := range volumes {
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pvc := volume.PersistentVolumeClaim
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if pvc != nil {
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name := pvc.ClaimName
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Pvc, _ := ctl.K8sClient.CoreV1().PersistentVolumeClaims(item.Namespace).Get(name, metaV1.GetOptions{})
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if Pvc.Annotations == nil {
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Pvc.Annotations = make(map[string]string)
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}
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annotation := Pvc.Annotations
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if len(annotation[inUse]) == 0 {
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pods := []string{item.Name}
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str, _ := json.Marshal(pods)
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annotation[inUse] = string(str)
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} else {
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var pods []string
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json.Unmarshal([]byte(annotation[inUse]), &pods)
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for _, pod := range pods {
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if pod == item.Name {
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return
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}
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}
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pods = append(pods, item.Name)
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str, _ := json.Marshal(pods)
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annotation[inUse] = string(str)
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}
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Pvc.Annotations = annotation
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ctl.K8sClient.CoreV1().PersistentVolumeClaims(item.Namespace).Update(Pvc)
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}
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}
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}
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func (ctl *PodCtl) delAnnotationFromPvc(item v1.Pod) {
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volumes := item.Spec.Volumes
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for _, volume := range volumes {
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pvc := volume.PersistentVolumeClaim
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if pvc != nil {
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name := pvc.ClaimName
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Pvc, _ := ctl.K8sClient.CoreV1().PersistentVolumeClaims(item.Namespace).Get(name, metaV1.GetOptions{})
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if Pvc.Annotations == nil {
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Pvc.Annotations = make(map[string]string)
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}
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annotation := Pvc.Annotations
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var pods []string
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json.Unmarshal([]byte(annotation[inUse]), pods)
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for index, pod := range pods {
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if pod == item.Name {
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pods = append(pods[:index], pods[index+1:]...)
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}
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}
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str, _ := json.Marshal(pods)
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annotation[inUse] = string(str)
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ctl.K8sClient.CoreV1().PersistentVolumeClaims(item.Namespace).Update(Pvc)
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}
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}
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}
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func getStatusAndRestartCount(pod v1.Pod) (string, int) {
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status := string(pod.Status.Phase)
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restarts := 0
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if pod.Status.Reason != "" {
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status = pod.Status.Reason
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}
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initializing := false
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for i := range pod.Status.InitContainerStatuses {
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container := pod.Status.InitContainerStatuses[i]
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restarts += int(container.RestartCount)
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switch {
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case container.State.Terminated != nil && container.State.Terminated.ExitCode == 0:
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continue
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case container.State.Terminated != nil:
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// initialization is failed
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if len(container.State.Terminated.Reason) == 0 {
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if container.State.Terminated.Signal != 0 {
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status = fmt.Sprintf("Init:Signal:%d", container.State.Terminated.Signal)
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} else {
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status = fmt.Sprintf("Init:ExitCode:%d", container.State.Terminated.ExitCode)
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}
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} else {
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status = "Init:" + container.State.Terminated.Reason
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}
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initializing = true
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case container.State.Waiting != nil && len(container.State.Waiting.Reason) > 0 && container.State.Waiting.Reason != "PodInitializing":
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status = "Init:" + container.State.Waiting.Reason
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initializing = true
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default:
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status = fmt.Sprintf("Init:%d/%d", i, len(pod.Spec.InitContainers))
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initializing = true
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}
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break
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}
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if !initializing {
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restarts = 0
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hasRunning := false
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for i := len(pod.Status.ContainerStatuses) - 1; i >= 0; i-- {
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container := pod.Status.ContainerStatuses[i]
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restarts += int(container.RestartCount)
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if container.State.Waiting != nil && container.State.Waiting.Reason != "" {
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status = container.State.Waiting.Reason
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} else if container.State.Terminated != nil && container.State.Terminated.Reason != "" {
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status = container.State.Terminated.Reason
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} else if container.State.Terminated != nil && container.State.Terminated.Reason == "" {
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if container.State.Terminated.Signal != 0 {
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status = fmt.Sprintf("Signal:%d", container.State.Terminated.Signal)
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} else {
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status = fmt.Sprintf("ExitCode:%d", container.State.Terminated.ExitCode)
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}
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} else if container.Ready && container.State.Running != nil {
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hasRunning = true
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}
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}
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// change pod status back to "Running" if there is at least one container still reporting as "Running" status
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if status == "Completed" && hasRunning {
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status = "Running"
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}
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}
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if pod.DeletionTimestamp != nil && pod.Status.Reason == "NodeLost" {
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status = "Unknown"
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} else if pod.DeletionTimestamp != nil {
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status = "Terminating"
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}
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return status, restarts
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}
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func (ctl *PodCtl) generateObject(item v1.Pod) *Pod {
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name := item.Name
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namespace := item.Namespace
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podIp := item.Status.PodIP
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nodeName := item.Spec.NodeName
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nodeIp := item.Status.HostIP
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status, restartCount := getStatusAndRestartCount(item)
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createTime := item.CreationTimestamp.Time
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containerStatus := item.Status.ContainerStatuses
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containerSpecs := item.Spec.Containers
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var containers Containers
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for _, containerSpec := range containerSpecs {
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var container Container
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container.Name = containerSpec.Name
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container.Image = containerSpec.Image
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container.Ports = containerSpec.Ports
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container.Resources = containerSpec.Resources
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for _, status := range containerStatus {
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if container.Name == status.Name {
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container.Ready = status.Ready
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}
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}
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containers = append(containers, container)
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}
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object := &Pod{
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Namespace: namespace,
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Name: name,
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Node: nodeName,
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PodIp: podIp,
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Status: status,
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NodeIp: nodeIp,
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CreateTime: createTime,
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Annotation: MapString{item.Annotations},
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Containers: containers,
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RestartCount: restartCount,
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Labels: MapString{item.Labels},
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}
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return object
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}
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func (ctl *PodCtl) Name() string {
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return ctl.CommonAttribute.Name
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}
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func (ctl *PodCtl) sync(stopChan chan struct{}) {
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db := ctl.DB
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if db.HasTable(&Pod{}) {
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db.DropTable(&Pod{})
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}
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db = db.CreateTable(&Pod{})
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ctl.initListerAndInformer()
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list, err := ctl.lister.List(labels.Everything())
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if err != nil {
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glog.Error(err)
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return
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}
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for _, item := range list {
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obj := ctl.generateObject(*item)
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db.Create(obj)
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}
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ctl.informer.Run(stopChan)
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}
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func (ctl *PodCtl) total() int {
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list, err := ctl.lister.List(labels.Everything())
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if err != nil {
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glog.Errorf("count %s falied, reason:%s", err, ctl.Name())
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return 0
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}
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return len(list)
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}
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func (ctl *PodCtl) initListerAndInformer() {
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db := ctl.DB
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informerFactory := informers.NewSharedInformerFactory(ctl.K8sClient, time.Second*resyncCircle)
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ctl.lister = informerFactory.Core().V1().Pods().Lister()
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informer := informerFactory.Core().V1().Pods().Informer()
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informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: func(obj interface{}) {
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object := obj.(*v1.Pod)
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mysqlObject := ctl.generateObject(*object)
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db.Create(mysqlObject)
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ctl.addAnnotationToPvc(*object)
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},
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UpdateFunc: func(old, new interface{}) {
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object := new.(*v1.Pod)
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mysqlObject := ctl.generateObject(*object)
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ctl.addAnnotationToPvc(*object)
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db.Save(mysqlObject)
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},
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DeleteFunc: func(obj interface{}) {
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var item Pod
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object := obj.(*v1.Pod)
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db.Where("name=? And namespace=?", object.Name, object.Namespace).Find(&item)
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ctl.delAnnotationFromPvc(*object)
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db.Delete(item)
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},
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})
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ctl.informer = informer
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}
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func (ctl *PodCtl) CountWithConditions(conditions string) int {
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var object Pod
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return countWithConditions(ctl.DB, conditions, &object)
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}
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func (ctl *PodCtl) ListWithConditions(conditions string, paging *Paging, order string) (int, interface{}, error) {
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var list []Pod
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var object Pod
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var total int
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if len(order) == 0 {
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order = "createTime desc"
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}
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listWithConditions(ctl.DB, &total, &object, &list, conditions, paging, order)
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return total, list, nil
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}
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func (ctl *PodCtl) Lister() interface{} {
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return ctl.lister
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}
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