fix: pod-readiness-controller use Patch to modify Pod

Signed-off-by: BruceAko <[email protected]>

pkg/controller/podreadiness/pod_readiness_controller.go

@@ -18,6 +18,8 @@ package podreadiness
 
 import (
 	"context"
+	"encoding/json"
+	"fmt"
 	"time"
 
 	appspub "github.com/openkruise/kruise/apis/apps/pub"
@@ -27,6 +29,7 @@ import (
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/util/retry"
 	"k8s.io/klog/v2"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -129,12 +132,23 @@ func (r *ReconcilePodReadiness) Reconcile(_ context.Context, request reconcile.R
 			return nil
 		}
 
-		pod.Status.Conditions = append(pod.Status.Conditions, v1.PodCondition{
-			Type:               appspub.KruisePodReadyConditionType,
-			Status:             v1.ConditionTrue,
-			LastTransitionTime: metav1.Now(),
-		})
-		return r.Status().Update(context.TODO(), pod)
+		// patch pod condition
+		status := v1.PodStatus{
+			Conditions: []v1.PodCondition{
+				{
+					Type:               appspub.KruisePodReadyConditionType,
+					Status:             v1.ConditionTrue,
+					LastTransitionTime: metav1.Now(),
+				},
+			},
+		}
+		by, _ := json.Marshal(status)
+		patchBody := fmt.Sprintf(`{"status":%s}`, string(by))
+		rcvObject := &v1.Pod{ObjectMeta: metav1.ObjectMeta{Namespace: pod.Namespace, Name: pod.Name}}
+		if err := r.Status().Patch(context.TODO(), rcvObject, client.RawPatch(types.StrategicMergePatchType, []byte(patchBody))); err != nil {
+			return fmt.Errorf("failed to patch pod status: %v", err)
+		}
+		return nil
 	})
 	return reconcile.Result{}, err
 }