Fix bug: pods can not connect to kb in LL

Signed-off-by: JimmyYang20 <yangjin39@huawei.com>

pkg/globalmanager/controllers/lifelonglearning/lifelonglearningjob.go

@@ -701,6 +701,7 @@ func (c *Controller) createPod(job *sednav1.LifelongLearningJob, podtype sednav1
 	// set the default policy instead of Always policy
 	workerParam.RestartPolicy = v1.RestartPolicyOnFailure
 	workerParam.HostNetwork = true
+	workerParam.DNSPolicy = v1.DNSClusterFirstWithHostNet
 
 	// create pod based on podtype
 	_, err = runtime.CreatePodWithTemplate(c.kubeClient, job, podTemplate, workerParam)
@@ -745,6 +746,7 @@ func (c *Controller) createInferPod(job *sednav1.LifelongLearningJob) error {
 
 	workerParam.WorkerType = runtime.InferencePodType
 	workerParam.HostNetwork = true
+	workerParam.DNSPolicy = v1.DNSClusterFirstWithHostNet
 
 	// create edge pod
 	_, err = runtime.CreatePodWithTemplate(c.kubeClient, job, &job.Spec.DeploySpec.Template, workerParam)

pkg/globalmanager/runtime/worker.go

@@ -42,6 +42,8 @@ type WorkerParam struct {
 	ModelHotUpdate ModelHotUpdate
 
 	RestartPolicy v1.RestartPolicy
+
+	DNSPolicy v1.DNSPolicy
 }
 
 type ModelHotUpdate struct {
@@ -163,6 +165,10 @@ func injectWorkerParam(pod *v1.Pod, workerParam *WorkerParam, object CommonInter
 	if pod.Spec.RestartPolicy == "" {
 		pod.Spec.RestartPolicy = workerParam.RestartPolicy
 	}
+
+	if workerParam.DNSPolicy != "" {
+		pod.Spec.DNSPolicy = workerParam.DNSPolicy
+	}
 }
 
 // CreatePodWithTemplate creates and returns a pod object given a crd object, pod template, and workerParam