refine ApplicationLoadBalancer to favor subnetMapping

Author: M00nF1sh

config/crds/ingress_v1alpha1_clusterapplicationloadbalancer.yaml

@@ -83,13 +83,23 @@ spec:
             securityGroups:
               items:
                 type: string
+              minItems: 1
               type: array
-            subnets:
+            subnetMappings:
               items:
-                type: string
+                properties:
+                  subnetID:
+                    type: string
+                required:
+                - subnetID
+                type: object
+              minItems: 2
               type: array
             tags:
               type: object
+          required:
+          - subnetMappings
+          - securityGroups
           type: object
         status:
           properties:

pkg/apis/ingress/v1alpha1/clusterapplicationloadbalancer_types.go

@@ -83,6 +83,10 @@ type ApplicationLoadBalancerAttributes struct {
 	Routing *LoadBalancerRoutingAttributes `json:"routing,omitempty"`
 }
 
+type SubnetMapping struct {
+	SubnetID string `json:"subnetID"`
+}
+
 // ApplicationLoadBalancerSpec defines the desired state of ApplicationLoadBalancer
 type ApplicationLoadBalancerSpec struct {
 	// +kubebuilder:validation:Enum=ipv4,dualstack
@@ -93,11 +97,11 @@ type ApplicationLoadBalancerSpec struct {
 	// +optional
 	Schema LoadBalancerSchema `json:"schema,omitempty"`
 
-	// +optional
-	Subnets []string `json:"subnets,omitempty"`
+	// +kubebuilder:validation:MinItems=2
+	SubnetMappings []SubnetMapping `json:"subnetMappings"`
 
-	// +optional
-	SecurityGroups []string `json:"securityGroups,omitempty"`
+	// +kubebuilder:validation:MinItems=1
+	SecurityGroups []string `json:"securityGroups"`
 
 	// +optional
 	Attributes ApplicationLoadBalancerAttributes `json:"attributes,omitempty"`