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draft: support serverless leaf cluster
Signed-off-by: OrangeBao <[email protected]>
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80 changes: 80 additions & 0 deletions
80
pkg/clustertree/cluster-manager/controllers/pod/leaf-pod/k8s/syncer.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package k8s | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/klog" | ||
|
|
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| "github.com/kosmos.io/kosmos/pkg/clustertree/cluster-manager/runtime" | ||
| "github.com/kosmos.io/kosmos/pkg/utils/podutils" | ||
| ) | ||
|
|
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| type leafPodK8sSyncer struct { | ||
| LeafClient *kubernetes.Clientset | ||
| RootClient kubernetes.Interface | ||
| } | ||
|
|
||
| const ( | ||
| LeafPodControllerName = "leaf-pod-controller" | ||
| LeafPodRequeueTime = 10 * time.Second | ||
| ) | ||
|
|
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| func DeletePodInRootCluster(ctx context.Context, rootnamespacedname runtime.NamespacedName, rootClient kubernetes.Interface) error { | ||
| rPod, err := rootClient.CoreV1().Pods(rootnamespacedname.Namespace).Get(ctx, rootnamespacedname.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| if errors.IsNotFound(err) { | ||
| return nil | ||
| } else { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| rPodCopy := rPod.DeepCopy() | ||
|
|
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| if err := rootClient.CoreV1().Pods(rPodCopy.Namespace).Delete(ctx, rPodCopy.Name, metav1.DeleteOptions{ | ||
| GracePeriodSeconds: new(int64), | ||
| }); err != nil { | ||
| if !errors.IsNotFound(err) { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
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| func (s *leafPodK8sSyncer) Reconcile(ctx context.Context, key runtime.NamespacedName) (runtime.Result, error) { | ||
| pod, err := s.LeafClient.CoreV1().Pods(key.Namespace).Get(ctx, key.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| if errors.IsNotFound(err) { | ||
| // delete pod in root | ||
| if err := DeletePodInRootCluster(ctx, key, s.RootClient); err != nil { | ||
| return runtime.Result{RequeueAfter: LeafPodRequeueTime}, nil | ||
| } | ||
| return runtime.Result{}, nil | ||
| } | ||
|
|
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| klog.Errorf("get %s error: %v", key, err) | ||
| return runtime.Result{RequeueAfter: LeafPodRequeueTime}, nil | ||
| } | ||
|
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| podCopy := pod.DeepCopy() | ||
|
|
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| // if ShouldSkipStatusUpdate(podCopy) { | ||
| // return reconcile.Result{}, nil | ||
| // } | ||
|
|
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| if podutils.IsKosmosPod(podCopy) { | ||
| podutils.FitObjectMeta(&podCopy.ObjectMeta) | ||
| podCopy.ResourceVersion = "0" | ||
| if _, err := s.RootClient.CoreV1().Pods(podCopy.Namespace).UpdateStatus(ctx, podCopy, metav1.UpdateOptions{}); err != nil && !errors.IsNotFound(err) { | ||
| klog.V(4).Info(fmt.Sprintf("error while updating pod status in kubernetes: %s", err)) | ||
| return runtime.Result{RequeueAfter: LeafPodRequeueTime}, nil | ||
| } | ||
| } | ||
| return runtime.Result{}, nil | ||
| } |
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