[Az.Aks] Disable setting the default NodeVmSize value (#27663)

Author: YanaXu

src/Aks/Aks/ChangeLog.md

@@ -18,6 +18,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Updated the default value of `-NodeVmSize` parameter in `New-AzAksCluster` and `-VmSize` parameter in `New-AzAksNodePool` from 'Standard_D2_V2' to being dynamically selected by the AKS resource provider based on quota and capacity in the next major release.
 
 ## Version 6.1.1
 * Preannounced breaking change: The default value of `-NodeVmSize` parameter of `New-AzAksCluster` will be changing from 'Standard_DS2_V2 (Linux), Standard_DS2_V3 (Windows)' to being dynamically selected by the AKS resource provider based on quota and capacity in the next major release.

src/Aks/Aks/Commands/CreateOrUpdateKubeBase.cs

@@ -109,8 +109,8 @@ public abstract class CreateOrUpdateKubeBase : KubeCmdletBase
         [Parameter(Mandatory = false, HelpMessage = "The default number of nodes for the node pools.")]
         public int NodeOsDiskSize { get; set; }
 
-        [Parameter(Mandatory = false, HelpMessage = "The size of the Virtual Machine. Default value is Standard_D2_v2")]
-        public string NodeVmSize { get; set; } = "Standard_D2_v2";
+        [Parameter(Mandatory = false, HelpMessage = "The size of the Virtual Machine. Default value is dynamically selected by the AKS resource provider based on quota and capacity.")]
+        public string NodeVmSize { get; set; } = "";
 
         [Parameter(Mandatory = false, HelpMessage = "Node pool labels used for building Kubernetes network.")]
         public Hashtable NodePoolLabel { get; set; }

src/Aks/Aks/Commands/NewAzureRmAks.cs

@@ -35,7 +35,6 @@
 namespace Microsoft.Azure.Commands.Aks
 {
     [Cmdlet("New", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "AksCluster", DefaultParameterSetName = DefaultParamSet, SupportsShouldProcess = true)]
-    [GenericBreakingChangeWithVersion("The default value of -NodeVmSize will be changing from 'Standard_DS2_V2 (Linux), Standard_DS2_V3 (Windows)' to being dynamically selected by the AKS resource provider based on quota and capacity.", "14.0.0", "7.0.0")]
     [OutputType(typeof(PSKubernetesCluster))]
     public class NewAzureRmAks : CreateOrUpdateKubeBase
     {

src/Aks/Aks/Commands/NewAzureRmAksNodePool.cs

@@ -54,8 +54,8 @@ public class NewAzureRmAksNodePool : NewOrUpdateAgentPoolBase
         [Parameter(Mandatory = false, HelpMessage = "The default number of nodes for the node pools.")]
         public int OsDiskSize { get; set; }
 
-        [Parameter(Mandatory = false, HelpMessage = "The size of the Virtual Machine. Default value is Standard_D2_v2.")]
-        public string VmSize { get; set; } = "Standard_D2_v2";
+        [Parameter(Mandatory = false, HelpMessage = "The size of the Virtual Machine. Default value is dynamically selected by the AKS resource provider based on quota and capacity.")]
+        public string VmSize { get; set; } = "";
 
         [Parameter(Mandatory = false, HelpMessage = "VNet SubnetID specifies the VNet's subnet identifier.")]
         public string VnetSubnetID { get; set; }

src/Aks/Aks/help/New-AzAksCluster.md

@@ -1163,7 +1163,7 @@ Accept wildcard characters: False
 ```
 
 ### -NodeVmSize
-The size of the Virtual Machine. Default value is Standard_D2_v2.
+The size of the Virtual Machine. Default value is dynamically selected by the AKS resource provider based on quota and capacity.
 
 ```yaml
 Type: System.String

src/Aks/Aks/help/New-AzAksNodePool.md

@@ -665,7 +665,7 @@ Accept wildcard characters: False
 ```
 
 ### -VmSize
-The size of the Virtual Machine. Default value is Standard_D2_v2.
+The size of the Virtual Machine. Default value is dynamically selected by the AKS resource provider based on quota and capacity.
 
 ```yaml
 Type: System.String