87 lines
2.3 KiB
Go
87 lines
2.3 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 models
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import (
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"fmt"
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"math/rand"
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"github.com/golang/glog"
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"k8s.io/api/core/v1"
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meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"kubesphere.io/kubesphere/pkg/client"
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)
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const (
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deploymentName = "kubectl"
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)
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type kubectlPodInfo struct {
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Namespace string `json: "namespace"`
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Pod string `json: "podname"`
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Container string `json: "container"`
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}
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func GetKubectlPod(namespace string) (kubectlPodInfo, error) {
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k8sClient := client.NewK8sClient()
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deploy, err := k8sClient.AppsV1beta2().Deployments(namespace).Get(deploymentName, meta_v1.GetOptions{})
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if err != nil {
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glog.Errorln(err)
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return kubectlPodInfo{}, err
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}
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selectors := deploy.Spec.Selector.MatchLabels
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labelSelector := labels.Set(selectors).AsSelector().String()
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podList, err := k8sClient.CoreV1().Pods(namespace).List(meta_v1.ListOptions{LabelSelector: labelSelector})
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if err != nil {
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glog.Errorln(err)
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return kubectlPodInfo{}, err
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}
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pod, err := selectCorrectPod(namespace, podList.Items)
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if err != nil {
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glog.Errorln(err)
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return kubectlPodInfo{}, err
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}
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info := kubectlPodInfo{Namespace: pod.Namespace, Pod: pod.Name, Container: pod.Status.ContainerStatuses[0].Name}
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return info, nil
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}
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func selectCorrectPod(namespace string, pods []v1.Pod) (kubectlPod v1.Pod, err error) {
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var kubectPodList []v1.Pod
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for _, pod := range pods {
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for _, condition := range pod.Status.Conditions {
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if condition.Type == "Ready" && condition.Status == "True" {
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kubectPodList = append(kubectPodList, pod)
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}
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}
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}
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if len(kubectPodList) < 1 {
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err = fmt.Errorf("cannot find valid kubectl pod in namespace:%s", namespace)
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return v1.Pod{}, err
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}
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random := rand.Intn(len(kubectPodList))
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return kubectPodList[random], nil
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}
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