329 lines
9.2 KiB
Go
329 lines
9.2 KiB
Go
package executor
|
||
|
||
import (
|
||
"fmt"
|
||
"k8s.io/apimachinery/pkg/api/errors"
|
||
"os"
|
||
"strings"
|
||
"sync"
|
||
"time"
|
||
|
||
"context"
|
||
|
||
corev1 "k8s.io/api/core/v1"
|
||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||
"k8s.io/client-go/kubernetes"
|
||
"k8s.io/client-go/tools/clientcmd"
|
||
)
|
||
|
||
var k8sConfigFilePath = "/root/wdd/kube_config_cluster.yml"
|
||
var k8sClient = newK8sClientInstance()
|
||
|
||
func newK8sClientInstance() *kubernetes.Clientset {
|
||
once := sync.Once{}
|
||
|
||
if !BasicFileExistAndNotNull(k8sConfigFilePath) {
|
||
log.WarnF("[newK8sClientInstance] - k8s config %s does not exist ! ", k8sConfigFilePath)
|
||
return nil
|
||
}
|
||
|
||
var client *kubernetes.Clientset
|
||
once.Do(func() {
|
||
// 使用kubeconfig文件初始化客户端
|
||
config, err := clientcmd.BuildConfigFromFlags("", k8sConfigFilePath)
|
||
if err != nil {
|
||
log.ErrorF("[newK8sClientInstance] - load from %s error !", k8sConfigFilePath)
|
||
|
||
}
|
||
|
||
client, err = kubernetes.NewForConfig(config)
|
||
if err != nil {
|
||
log.Error("[newK8sClientInstance] - create k8s client error !")
|
||
}
|
||
})
|
||
|
||
return client
|
||
}
|
||
|
||
func K8sCheckPodStatusTimeout(specificPod string, supreme string, waitTimeOut int) bool {
|
||
|
||
// 设置超时时间和时间间隔
|
||
timeout := time.After(time.Duration(waitTimeOut) * time.Second)
|
||
tick := time.Tick(5 * time.Second)
|
||
|
||
// 监控Pod状态
|
||
for {
|
||
select {
|
||
case <-timeout:
|
||
log.ErrorF("[K8sCheckPodStatusTimeout] - 命名空间: [%s], Pod名称: [%s], 状态: 失败!", supreme, specificPod)
|
||
return false
|
||
case <-tick:
|
||
pod, err := k8sClient.CoreV1().Pods(supreme).Get(context.TODO(), specificPod, metav1.GetOptions{})
|
||
if err != nil {
|
||
log.ErrorF("[K8sCheckPodStatusTimeout] - 命名空间: [%s], Pod名称: [%s], 获取Pod信息失败 ！", supreme, err.Error())
|
||
} else {
|
||
log.DebugF("[K8sCheckPodStatusTimeout] - 命名空间: [%s], Pod名称: [%s], 状态: [%s]", supreme, pod.Name, pod.Status.Phase)
|
||
if pod.Status.Phase == corev1.PodRunning || pod.Status.Phase == corev1.PodSucceeded {
|
||
return true
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
func K8sCheckDeploymentStatusTimeout(specificDeployment string, supreme string, waitTimeOut int) bool {
|
||
|
||
// 设置超时时间和时间间隔
|
||
timeout := time.After(time.Duration(waitTimeOut) * time.Second)
|
||
tick := time.Tick(5 * time.Second)
|
||
|
||
// 监控Pod状态
|
||
for {
|
||
select {
|
||
case <-timeout:
|
||
log.ErrorF("[K8sCheckDeploymentStatusTimeout] - 命名空间: %s, Deployment名称: %s, 状态: 失败!\n", supreme, specificDeployment)
|
||
return false
|
||
case <-tick:
|
||
deployment, err := k8sClient.AppsV1().Deployments(supreme).Get(context.TODO(), specificDeployment, metav1.GetOptions{})
|
||
if err != nil {
|
||
log.ErrorF("[K8sCheckDeploymentStatusTimeout] - 命名空间: [%s], Deployment 名称: [%s], 获取Deployment信息失败 ！", supreme, err.Error())
|
||
} else {
|
||
log.DebugF("[K8sCheckDeploymentStatusTimeout] - 命名空间: [ %s ], Deployment: [ %s ] 还有Pods未处于Running状态 (Ready: %d, Total: %d)\n", supreme, deployment.Name, deployment.Status.ReadyReplicas, deployment.Status.Replicas)
|
||
|
||
if deployment.Status.ReadyReplicas == deployment.Status.Replicas {
|
||
return true
|
||
}
|
||
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
func K8sListPVCInNamespace(supreme string) (bool, []string) {
|
||
|
||
if k8sClient == nil {
|
||
log.ErrorF("k8s client is nil, run k8s function error !")
|
||
return false, nil
|
||
}
|
||
|
||
pvcs, err := k8sClient.CoreV1().PersistentVolumeClaims(supreme).List(context.TODO(), metav1.ListOptions{})
|
||
if err != nil {
|
||
log.ErrorF("[K8sListPVCInNamespace] - error list pvc list in namespace %s", supreme)
|
||
return false, nil
|
||
}
|
||
|
||
var pvcList []string
|
||
for _, pvc := range pvcs.Items {
|
||
pvcList = append(pvcList, pvc.Name)
|
||
}
|
||
|
||
log.DebugF("K8sListPVCInNamespace - all pvc in namespace of [ %s ] are %v", supreme, pvcList)
|
||
return true, pvcList
|
||
}
|
||
|
||
func K8sCheckPVCStatusTimeOut(specificPvcName string, supreme string, waitTimeOut int) bool {
|
||
|
||
if k8sClient == nil {
|
||
log.ErrorF("k8s client is nil, run k8s function error !")
|
||
return false
|
||
}
|
||
|
||
// 设置超时时间和时间间隔
|
||
timeout := time.After(time.Duration(waitTimeOut) * time.Second)
|
||
tick := time.Tick(5 * time.Second)
|
||
|
||
// 监控Pod状态
|
||
for {
|
||
select {
|
||
case <-timeout:
|
||
log.ErrorF("[K8sCheckPVCStatusTimeOut] - 命名空间: %s, PVC 名称: %s, 状态: 失败! ", supreme, specificPvcName)
|
||
return false
|
||
case <-tick:
|
||
pvc, err := k8sClient.CoreV1().PersistentVolumeClaims(supreme).Get(context.TODO(), specificPvcName, metav1.GetOptions{})
|
||
if err != nil {
|
||
log.ErrorF("[K8sCheckPVCStatusTimeOut] - 命名空间: [ %s ], 获取 PVC [%s] 信息失败: %s ", supreme, specificPvcName, err.Error())
|
||
}
|
||
|
||
if pvc.Status.Phase == corev1.ClaimBound {
|
||
log.DebugF("[K8sCheckPVCStatusTimeOut] - PVC %s in namespace %s is running", specificPvcName, supreme)
|
||
return true
|
||
} else {
|
||
log.WarnF("[K8sCheckPVCStatusTimeOut] - PVC %s in namespace %s run failed !", specificPvcName, supreme)
|
||
return false
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
func KubectlCheckPodStatus(specific string, supreme string) bool {
|
||
|
||
if !BasicCommandExists("kubectl") {
|
||
log.Error("kubectl命令不存在，无法查看Pod状态，请查看！")
|
||
}
|
||
|
||
ok, resultLog := AllCommandExecutor([]string{
|
||
"kubectl", "-n", supreme, "get", "pod", specific, "-o", "jsonpath='{.status.phase}'",
|
||
})
|
||
if !ok {
|
||
return false
|
||
}
|
||
|
||
for _, resultLine := range resultLog {
|
||
if strings.HasPrefix(resultLine, "Running") {
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
}
|
||
|
||
func KubectlApplyExec(resourcesYamlFile string) (bool, []string) {
|
||
|
||
// check kubectl
|
||
if !BasicCommandExistByPath("kubectl") {
|
||
return false, []string{
|
||
"[KubectlApplyExec] - kubectl command not exist !",
|
||
}
|
||
}
|
||
|
||
// check resourcesYamlFile
|
||
if !BasicFileExistAndNotNull(resourcesYamlFile) {
|
||
return false, []string{
|
||
fmt.Sprintf("[KubectlApplyExec] - wrong resourcesYamlFile %s not exist !", resourcesYamlFile),
|
||
}
|
||
}
|
||
|
||
// apply -f
|
||
ok, resultLog := AllCommandExecutor([]string{
|
||
"/usr/local/bin/kubectl",
|
||
"apply",
|
||
"-f",
|
||
resourcesYamlFile,
|
||
})
|
||
if !ok {
|
||
return false, resultLog
|
||
}
|
||
|
||
return true, append(resultLog,
|
||
fmt.Sprintf("[KubectlApplyExec] - %s apply success!", resourcesYamlFile))
|
||
}
|
||
|
||
func KubectlDeleteExec(resourcesYamlFile string) (bool, []string) {
|
||
|
||
// check kubectl
|
||
if !BasicCommandExistByPath("kubectl") {
|
||
return false, []string{
|
||
"[KubectlDeleteExec] - kubectl command not exist !",
|
||
}
|
||
}
|
||
|
||
// check resourcesYamlFile
|
||
if !BasicFileExistAndNotNull(resourcesYamlFile) {
|
||
return false, []string{
|
||
fmt.Sprintf("[KubectlDeleteExec] - wrong resourcesYamlFile %s not exist !", resourcesYamlFile),
|
||
}
|
||
}
|
||
|
||
// apply -f
|
||
ok, resultLog := AllCommandExecutor([]string{
|
||
"/usr/local/bin/kubectl",
|
||
"delete",
|
||
"-f",
|
||
resourcesYamlFile,
|
||
})
|
||
if !ok {
|
||
return false, resultLog
|
||
}
|
||
|
||
return true, append(resultLog,
|
||
fmt.Sprintf("[KubectlDeleteExec] - %s delete success!", resourcesYamlFile))
|
||
}
|
||
|
||
func K8sCreateNamespace(namespaceName string) bool {
|
||
if k8sClient == nil {
|
||
// this should be the first call of k8s function
|
||
k8sClient = newK8sClientInstance()
|
||
if k8sClient == nil {
|
||
log.ErrorF("k8s client is nil, run k8s function error !")
|
||
return false
|
||
}
|
||
}
|
||
|
||
namespace, _ := k8sClient.CoreV1().Namespaces().Get(context.TODO(), namespaceName, metav1.GetOptions{})
|
||
if namespace != nil {
|
||
log.InfoF("[K8sCreateNamespace] - namespace of [%s] already exists!", namespaceName)
|
||
return true
|
||
}
|
||
|
||
// create namespace
|
||
// 创建命名空间对象
|
||
namespace = &corev1.Namespace{
|
||
ObjectMeta: metav1.ObjectMeta{
|
||
Name: namespaceName,
|
||
},
|
||
}
|
||
// 使用客户端创建命名空间
|
||
var err error
|
||
namespace, err = k8sClient.CoreV1().Namespaces().Create(context.TODO(), namespace, metav1.CreateOptions{})
|
||
if err != nil {
|
||
log.ErrorF("Error getting namespace: %s ", err.Error())
|
||
return false
|
||
}
|
||
|
||
// check namespace exists
|
||
// 尝试获取名为 "xxg" 的命名空间
|
||
namespace, err = k8sClient.CoreV1().Namespaces().Get(context.TODO(), namespaceName, metav1.GetOptions{})
|
||
|
||
// 如果返回错误，需要判断是因为命名空间不存在还是其他错误
|
||
if err != nil {
|
||
if errors.IsNotFound(err) {
|
||
log.ErrorF("Namespace %s cant be got !", namespaceName)
|
||
return false
|
||
} else {
|
||
log.ErrorF("Error retrieving namespace: %s\n", err.Error())
|
||
}
|
||
return false
|
||
}
|
||
|
||
log.DebugF("Namespace %s create successful !", namespaceName)
|
||
return true
|
||
}
|
||
|
||
func K8sGetDashBoardAuthKey() {
|
||
|
||
// 获取 kube-system 命名空间的 secrets 列表
|
||
secrets, err := k8sClient.CoreV1().Secrets("kube-system").List(context.TODO(), metav1.ListOptions{})
|
||
if err != nil {
|
||
fmt.Printf("Error retrieving secrets from kube-system namespace: %s\n", err.Error())
|
||
os.Exit(1)
|
||
}
|
||
|
||
// 过滤出名为 admin-user 的 secret
|
||
var adminUserSecretName string
|
||
for _, secret := range secrets.Items {
|
||
if strings.Contains(secret.Name, "admin-user") {
|
||
adminUserSecretName = secret.Name
|
||
break
|
||
}
|
||
}
|
||
|
||
if adminUserSecretName == "" {
|
||
fmt.Println("No admin-user secret found")
|
||
os.Exit(1)
|
||
}
|
||
|
||
// 获取并打印特定的 secret 描述信息
|
||
secret, err := k8sClient.CoreV1().Secrets("kube-system").Get(context.TODO(), adminUserSecretName, metav1.GetOptions{})
|
||
if err != nil {
|
||
fmt.Printf("Error retrieving secret %s: %s\n", adminUserSecretName, err.Error())
|
||
os.Exit(1)
|
||
}
|
||
|
||
// 打印 secret 的详细信息，根据需要格式化输出
|
||
fmt.Printf("Name: %s\nNamespace: %s\nData:\n", secret.Name, secret.Namespace)
|
||
for key, value := range secret.Data {
|
||
fmt.Printf("%s: %s\n", key, value)
|
||
}
|
||
|
||
}
|