[Fleet] Managed Identity upgrade (#24643)

* Upgrade Fleet managed Identity design Add example and test

* Fix update description

Author: JoyerJin

src/Fleet/Fleet.Autorest/README.md

@@ -33,20 +33,12 @@ require:
 # readme.azure.noprofile.md is the common configuration file
   - $(this-folder)/../../readme.azure.noprofile.md
   - $(repo)/specification/containerservice/resource-manager/Microsoft.ContainerService/fleet/readme.md
-
+  
 title: Fleet
 module-version: 0.1.0
 subject-prefix: $(service-name)
-disable-transform-identity-type: true
-flatten-userassignedidentity: false
 
 directive:
-# #   # Following is two common directive which are normally required in all the RPs
-# #   # 1. Remove the unexpanded parameter set
-# #   # 2. For New-* cmdlets, ViaIdentity is not required, so CreateViaIdentityExpanded is removed as well
-  - where:
-      variant: ^(Create|Update)(?!.*?(Expanded|JsonFilePath|JsonString))
-    remove: true
   # Fix required parameter missing
   - from: swagger-document
     where: $.definitions.FleetMember
@@ -74,15 +66,17 @@ directive:
   - from: swagger-document
     where: $.definitions.NodeImageSelection.properties.type
     transform: $['x-ms-mutability'] = ["read", "update", "create"]
+# #   # Following is two common directive which are normally required in all the RPs
+# #   # 1. Remove the unexpanded parameter set
+# #   # 2. For New-* cmdlets, ViaIdentity is not required, so CreateViaIdentityExpanded is removed as well
+  - where:
+      variant: ^(Create|Update)(?!.*?(Expanded|JsonFilePath|JsonString))
+    remove: true
   # Hide set cmdlet
   - where:
       verb: Set
     remove: true
-  # Rename IdentityUserAssignedIdentity, UpdateStrategyName
-  - where:
-      parameter-name: IdentityUserAssignedIdentity
-    set:
-      parameter-name: UserAssignedIdentity
+  # Rename UpdateStrategyName
   - where:
       parameter-name: UpdateStrategyName
       subject: FleetUpdateStrategy

src/Fleet/Fleet.Autorest/docs/Az.Fleet.md

@@ -63,14 +63,14 @@ Starts an UpdateRun.
 Stops an UpdateRun.
 
 ### [Update-AzFleet](Update-AzFleet.md)
-Update a Fleet
+Update a Fleet.
 
 ### [Update-AzFleetMember](Update-AzFleetMember.md)
 Update a FleetMember
 
 ### [Update-AzFleetUpdateRun](Update-AzFleetUpdateRun.md)
-Create a UpdateRun
+Update a UpdateRun
 
 ### [Update-AzFleetUpdateStrategy](Update-AzFleetUpdateStrategy.md)
-Create a FleetUpdateStrategy
+Update a FleetUpdateStrategy
 

src/Fleet/Fleet.Autorest/docs/New-AzFleet.md

@@ -15,16 +15,16 @@ Create a Fleet.
 ### CreateExpanded (Default)
 ```
 New-AzFleet -Name <String> -ResourceGroupName <String> -Location <String> [-SubscriptionId <String>]
- [-IfMatch <String>] [-IfNoneMatch <String>] [-IdentityType <String>] [-Tag <Hashtable>]
- [-UserAssignedIdentity <Hashtable>] [-DefaultProfile <PSObject>] [-AsJob] [-NoWait] [-Confirm] [-WhatIf]
+ [-IfMatch <String>] [-IfNoneMatch <String>] [-EnableSystemAssignedIdentity] [-Tag <Hashtable>]
+ [-UserAssignedIdentity <String[]>] [-DefaultProfile <PSObject>] [-AsJob] [-NoWait] [-Confirm] [-WhatIf]
  [<CommonParameters>]
 ```
 
 ### CreateViaIdentityExpanded
 ```
 New-AzFleet -InputObject <IFleetIdentity> -Location <String> [-IfMatch <String>] [-IfNoneMatch <String>]
- [-IdentityType <String>] [-Tag <Hashtable>] [-UserAssignedIdentity <Hashtable>] [-DefaultProfile <PSObject>]
- [-AsJob] [-NoWait] [-Confirm] [-WhatIf] [<CommonParameters>]
+ [-EnableSystemAssignedIdentity] [-Tag <Hashtable>] [-UserAssignedIdentity <String[]>]
+ [-DefaultProfile <PSObject>] [-AsJob] [-NoWait] [-Confirm] [-WhatIf] [<CommonParameters>]
 ```
 
 ### CreateViaJsonFilePath
@@ -46,7 +46,7 @@ Create a Fleet.
 
 ## EXAMPLES
 
-### Example 1: Creates a Fleet resource
+### Example 1: Creates a Fleet resource with none identity type
 ```powershell
 New-AzFleet -Name sss -ResourceGroupName ps1-test -Location eastus
 ```
@@ -74,6 +74,73 @@ Tag                          : {
 Type                         : Microsoft.ContainerService/fleets
 ```
 
+This command creates a Fleet resource with none identity type.
+
+### Example 2: Creates a Fleet resource with EnableSystemAssignedIdentity
+```powershell
+New-AzFleet -Name testfleet02 -ResourceGroupName joyer-test -Location eastus -Tag @{"456"="asd"} -EnableSystemAssignedIdentity
+```
+
+```output
+ETag                         : "0a006dc9-0000-0100-0000-661cd4f70000"
+Id                           : /subscriptions/9e223dbe-3399-4e19-88eb-0975f02ac87f/resourceGroups/joyer-test/providers/Microsoft.ContainerService/fleets/testfleet02
+IdentityPrincipalId          : 978528a9-fa0f-4cdb-8282-95b3b30bb883
+IdentityTenantId             : 72f988bf-86f1-41af-91ab-2d7cd011db47
+IdentityType                 : SystemAssigned
+IdentityUserAssignedIdentity : {
+                               }
+Location                     : eastus
+Name                         : testfleet02
+ProvisioningState            : Succeeded
+ResourceGroupName            : joyer-test
+SystemDataCreatedAt          : 4/15/2024 7:19:15 AM
+SystemDataCreatedBy          : [email protected]
+SystemDataCreatedByType      : User
+SystemDataLastModifiedAt     : 4/15/2024 7:19:15 AM
+SystemDataLastModifiedBy     : [email protected]
+SystemDataLastModifiedByType : User
+Tag                          : {
+                                 "456": "asd"
+                               }
+Type                         : Microsoft.ContainerService/fleets
+```
+
+This command creates a Fleet resource with system assigned identity type.
+
+### Example 3: Creates a Fleet resource with user assigned identity type
+```powershell
+$mi = Get-AzUserAssignedIdentity -Name testUserAssignedMI -ResourceGroupName joyer-test
+New-AzFleet -Name testfleet03 -ResourceGroupName joyer-test -Location eastus -Tag @{"789"="asd"} -UserAssignedIdentity $mi.Id
+```
+
+```output
+ETag                         : "0a00e0c9-0000-0100-0000-661cd8010000"
+Id                           : /subscriptions/9e223dbe-3399-4e19-88eb-0975f02ac87f/resourceGroups/joyer-test/providers/Microsoft.ContainerService/fleets/testflee
+                               t03
+IdentityPrincipalId          : 
+IdentityTenantId             : 
+IdentityType                 : UserAssigned
+IdentityUserAssignedIdentity : {
+                                 "/subscriptions/9e223dbe-3399-4e19-88eb-0975f02ac87f/resourcegroups/joyer-test/providers/Microsoft.ManagedIdentity/userAssignedI 
+                               dentities/testUserAssignedMI": {
+                                 }
+                               }
+Location                     : eastus
+Name                         : testfleet03
+ProvisioningState            : Succeeded
+ResourceGroupName            : joyer-test
+SystemDataCreatedAt          : 4/15/2024 7:32:16 AM
+SystemDataCreatedBy          : [email protected]
+SystemDataCreatedByType      : User
+SystemDataLastModifiedAt     : 4/15/2024 7:32:16 AM
+SystemDataLastModifiedBy     : [email protected]
+SystemDataLastModifiedByType : User
+Tag                          : {
+                                 "789": "asd"
+                               }
+Type                         : Microsoft.ContainerService/fleets
+```
+
 This command creates a Fleet resource with a long running operation.
 
 ## PARAMETERS
@@ -109,11 +176,11 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
-### -IdentityType
-Type of managed service identity (where both SystemAssigned and UserAssigned types are allowed).
+### -EnableSystemAssignedIdentity
+Decides if enable a system assigned identity for the resource.
 
 ```yaml
-Type: System.String
+Type: System.Management.Automation.SwitchParameter
 Parameter Sets: CreateExpanded, CreateViaIdentityExpanded
 Aliases:
 
@@ -291,12 +358,11 @@ Accept wildcard characters: False
 ```
 
 ### -UserAssignedIdentity
-The set of user assigned identities associated with the resource.
-The userAssignedIdentities dictionary keys will be ARM resource ids in the form: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ManagedIdentity/userAssignedIdentities/{identityName}.
-The dictionary values can be empty objects ({}) in requests.
+The array of user assigned identities associated with the resource.
+The elements in array will be ARM resource ids in the form: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ManagedIdentity/userAssignedIdentities/{identityName}.'
 
 ```yaml
-Type: System.Collections.Hashtable
+Type: System.String[]
 Parameter Sets: CreateExpanded, CreateViaIdentityExpanded
 Aliases: