fix fake remote CRI

pkg/kubelet/remote/fake/fake_runtime.go

@@ -61,6 +61,15 @@ func (f *RemoteRuntime) Start(endpoint string) error {
 	}
 
 	go f.server.Serve(l)
+
+	// Set runtime and network conditions ready.
+	f.RuntimeService.FakeStatus = &kubeapi.RuntimeStatus{
+		Conditions: []*kubeapi.RuntimeCondition{
+			{Type: kubeapi.RuntimeReady, Status: true},
+			{Type: kubeapi.NetworkReady, Status: true},
+		},
+	}
+
 	return nil
 }
 

staging/src/k8s.io/cri-api/pkg/apis/testing/fake_runtime_service.go

@@ -194,6 +194,14 @@ func (r *FakeRuntimeService) RunPodSandbox(config *runtimeapi.PodSandboxConfig,
 			Network: &runtimeapi.PodSandboxNetworkStatus{
 				Ip: FakePodSandboxIPs[0],
 			},
+			// Without setting sandboxStatus's Linux.Namespaces.Options, kubeGenericRuntimeManager's podSandboxChanged will consider it as network
+			// namespace changed and always recreate sandbox which causes pod creation failed.
+			// Ref `sandboxStatus.GetLinux().GetNamespaces().GetOptions().GetNetwork() != networkNamespaceForPod(pod)` in podSandboxChanged function.
+			Linux: &runtimeapi.LinuxPodSandboxStatus{
+				Namespaces: &runtimeapi.Namespace{
+					Options: config.GetLinux().GetSecurityContext().GetNamespaceOptions(),
+				},
+			},
 			Labels:         config.Labels,
 			Annotations:    config.Annotations,
 			RuntimeHandler: runtimeHandler,