From b41ada39cc558b106bf6001e955a1bcdabba5108 Mon Sep 17 00:00:00 2001
From: kmurudi <kmurudi@microsoft.com>
Date: Mon, 15 Sep 2025 01:42:55 -0700
Subject: [PATCH] feat: add fields in pod network crd for prefix block mode for
 swiftv2

---
 crd/multitenancy/api/v1alpha1/podnetwork.go       | 15 +++++++++++++++
 .../multitenancy.acn.azure.com_podnetworks.yaml   | 12 ++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/crd/multitenancy/api/v1alpha1/podnetwork.go b/crd/multitenancy/api/v1alpha1/podnetwork.go
index 4f21ccbe07..2c41f84f49 100644
--- a/crd/multitenancy/api/v1alpha1/podnetwork.go
+++ b/crd/multitenancy/api/v1alpha1/podnetwork.go
@@ -45,6 +45,14 @@ const (
 	DeviceTypeInfiniBandNIC DeviceType = "acn.azure.com/infiniband-nic"
 )
 
+// +kubebuilder:validation:Enum=Single;PrefixBlock
+type SubnetAllocationMode string
+
+const (
+	Single      SubnetAllocationMode = "Single"
+	PrefixBlock SubnetAllocationMode = "PrefixBlock"
+)
+
 // PodNetworkSpec defines the desired state of PodNetwork
 type PodNetworkSpec struct {
 	// NetworkID is the identifier for the network, e.g. vnet guid or IB network ID
@@ -62,6 +70,10 @@ type PodNetworkSpec struct {
 	// Deprecated - Use NetworkID
 	// +kubebuilder:validation:Optional
 	VnetGUID string `json:"vnetGUID,omitempty"`
+	// subnet allocation mode
+	// +kubebuilder:validation:Optional
+	// +kubebuilder:default=Single
+	SubnetAllocationMode SubnetAllocationMode `json:"subnetAllocationMode,omitempty"`
 }
 
 // Status indicates the status of PN
@@ -80,6 +92,9 @@ type PodNetworkStatus struct {
 	// +kubebuilder:validation:Optional
 	Status          Status   `json:"status,omitempty"`
 	AddressPrefixes []string `json:"addressPrefixes,omitempty"`
+	// PrefixBlockAllocationSize indicates the size of IP block allocated to the subnet
+	// +kubebuilder:default=16
+	PrefixBlockAllocationSize int `json:"prefixBlockAllocationSize,omitempty"`
 }
 
 func init() {
diff --git a/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworks.yaml b/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworks.yaml
index 90ed5b698f..edf33071a3 100644
--- a/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworks.yaml
+++ b/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworks.yaml
@@ -77,6 +77,13 @@ spec:
                 description: NetworkID is the identifier for the network, e.g. vnet
                   guid or IB network ID
                 type: string
+              subnetAllocationMode:
+                default: Single
+                description: subnet allocation mode
+                enum:
+                - Single
+                - PrefixBlock
+                type: string
               subnetGUID:
                 description: customer subnet guid
                 type: string
@@ -94,6 +101,11 @@ spec:
                 items:
                   type: string
                 type: array
+              prefixBlockAllocationSize:
+                default: 16
+                description: PrefixBlockAllocationSize indicates the size of IP block
+                  allocated to the subnet
+                type: integer
               status:
                 description: Status indicates the status of PN
                 enum: