remove cel from placement decision group (#371)

Signed-off-by: Qing Hao <[email protected]>

Author: haoqing0110

cluster/v1beta1/0000_02_clusters.open-cluster-management.io_placements.crd.yaml

@@ -121,16 +121,6 @@ spec:
                               description: LabelSelector to select clusters subset
                                 by label.
                               properties:
-                                celSelector:
-                                  description: CelSelector represents a selector of
-                                    ManagedClusters by CEL expressions on ManagedCluster
-                                    fields
-                                  properties:
-                                    celExpressions:
-                                      items:
-                                        type: string
-                                      type: array
-                                  type: object
                                 claimSelector:
                                   description: ClaimSelector represents a selector
                                     of ManagedClusters by clusterClaims in status

cluster/v1beta1/types_placement.go

@@ -112,7 +112,19 @@ type DecisionGroup struct {
 	// LabelSelector to select clusters subset by label.
 	// +kubebuilder:validation:Required
 	// +required
-	ClusterSelector ClusterSelector `json:"groupClusterSelector,omitempty"`
+	ClusterSelector GroupClusterSelector `json:"groupClusterSelector,omitempty"`
+}
+
+// GroupClusterSelector represents the AND of the containing selectors for groupClusterSelector. An empty group cluster selector matches all objects.
+// A null group cluster selector matches no objects.
+type GroupClusterSelector struct {
+	// LabelSelector represents a selector of ManagedClusters by label
+	// +optional
+	LabelSelector metav1.LabelSelector `json:"labelSelector,omitempty"`
+
+	// ClaimSelector represents a selector of ManagedClusters by clusterClaims in status
+	// +optional
+	ClaimSelector ClusterClaimSelector `json:"claimSelector,omitempty"`
 }
 
 // Group the created placementDecision into decision groups based on the number of clusters per decision group.