fix: update default VM size to Standard_D2s_v5 and enhance troubleshooting documentation

Author: Harsh-Microsoft

documents/CustomizingAzdParameters.md

@@ -26,6 +26,7 @@ By default this template will use the environment name as the prefix to prevent
 | `AZURE_EXISTING_AI_PROJECT_RESOURCE_ID`    | string  | `<Existing AI Project resource Id>`            | Reuses an existing AIFoundry and AIFoundryProject instead of creating a new one.  |
 | `AZURE_ENV_VM_ADMIN_USERNAME`  | string | `take(newGuid(), 20)`               | The administrator username for the virtual machine.         |
 | `AZURE_ENV_VM_ADMIN_PASSWORD`  | string | `newGuid()`               | The administrator password for the virtual machine.         |
+| `AZURE_ENV_VM_SIZE`  | string | `Standard_D2s_v5`               | The size/SKU of the Jumpbox Virtual Machine (e.g., `Standard_D2s_v5`, `Standard_DS2_v2`).         |
 | `AZURE_ENV_CONTAINER_REGISTRY_ENDPOINT`  | string | `<Container Registry Endpoint>`               | The hostname/endpoint for the container registry used by both backend and frontend containers.         |
 
 

documents/TroubleShootingSteps.md

@@ -61,7 +61,7 @@ Use these as quick reference guides to unblock your deployments.
 | **ServiceQuotaExceeded** | Free tier service quota limit reached for Azure AI Search | This error occurs when you attempt to deploy an Azure AI Search service but have already reached the **free tier quota limit** for your subscription. Each Azure subscription is limited to **one free tier Search service**.<br><br>**Example error message:**<br>`ServiceQuotaExceeded: Operation would exceed 'free' tier service quota. You are using 1 out of 1 'free' tier service quota.`<br><br>**Common causes:**<br><ul><li>Already have a free tier Azure AI Search service in the subscription</li><li>Previous deployment created a free tier Search service that wasn't deleted</li><li>Attempting to deploy multiple environments with free tier Search services</li></ul><br>**Resolution:**<br><ul><li>**Option 1: Delete existing free tier Search service:**<br>`az search service list --query "[?sku.name=='free']" -o table`<br>`az search service delete --name <service-name> --resource-group <rg-name> --yes`</li><li>**Option 2: Upgrade to a paid SKU:**<br>Modify your Bicep/ARM template to use `basic`, `standard`, or higher SKU instead of `free`</li><li>**Option 3: Use existing Search service:**<br>Reference the existing free tier Search service in your deployment instead of creating a new one</li><li>**Request quota increase:**<br>Submit a support request with issue type 'Service and subscription limits (quota)' and quota type 'Search' via [Azure Quota Request](https://aka.ms/AddQuotaSubscription)</li></ul><br>**Reference:**<br><ul><li>[Azure AI Search service limits](https://learn.microsoft.com/en-us/azure/search/search-limits-quotas-capacity)</li><li>[Azure AI Search pricing tiers](https://learn.microsoft.com/en-us/azure/search/search-sku-tier)</li></ul> |
 | **InsufficientQuota** | Not enough quota available in subscription | <ul><li>Check if you have sufficient quota available in your subscription before deployment</li><li>To verify, refer to the [quota_check](../documents/QuotaCheck.md) file for details</li></ul> |
 | **MaxNumberOfRegionalEnvironmentsInSubExceeded** | Maximum Container App Environments limit reached for region |This error occurs when you attempt to create more **Azure Container App Environments** than the regional quota limit allows for your subscription. Each Azure region has a specific limit on the number of Container App Environments that can be created per subscription.<br><br>**Common Causes:**<br><ul><li>Deploying to regions with low quota limits (e.g., Sweden Central allows only 1 environment)</li><li>Multiple deployments without cleaning up previous environments</li><li>Exceeding the standard limit of 15 environments in most major regions</li></ul><br>**Resolution:**<br><ul><li>**Delete unused environments** in the target region, OR</li><li>**Deploy to a different region** with available capacity, OR</li><li>**Request quota increase** via [Azure Support](https://go.microsoft.com/fwlink/?linkid=2208872)</li></ul><br>**Reference:**<br><ul><li>[Azure Container Apps quotas](https://learn.microsoft.com/en-us/azure/container-apps/quotas)</li><li>[Azure subscription and service limits](https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits)</li></ul> |
-| **SkuNotAvailable** | Requested SKU not available in selected location or zone | You receive this error in the following scenarios:<br><ul><li>When the resource SKU you've selected, such as VM size, isn't available for a location or zone</li><li>If you're deploying an Azure Spot VM or Spot scale set instance, and there isn't any capacity for Azure Spot in this location. For more information, see Spot error messages</li></ul> |
+| **SkuNotAvailable** | Requested SKU not available in selected location or zone | This error occurs when the resource SKU you've selected (such as VM size) isn't available for the target location or availability zone.<br><br>**In this deployment**, the jumpbox VM defaults to `Standard_D2s_v5`. While this size is available in most regions, certain regions or zones may not support it.<br><br>**Resolution:**<br><ul><li>**Check SKU availability** for your target region:<br>`az vm list-skus --location <region> --size Standard_D2s --output table`</li><li>**Override the VM size** if the default isn't available in your region:<br>`azd env set AZURE_ENV_VM_SIZE Standard_D2s_v4`</li><li>**Recommended alternatives** (all support accelerated networking + Premium SSD):<br>- `Standard_D2s_v4` — previous gen, identical pricing<br>- `Standard_D2as_v5` — AMD-based, similar pricing<br>- `Standard_D2s_v3` — older gen, widely available</li><li>**Avoid A-series VMs** (e.g., `Standard_A2m_v2`) — they do not support accelerated networking or Premium SSD, which are required by this deployment</li></ul><br>**Reference:**<br><ul><li>[Resolve errors for SKU not available](https://learn.microsoft.com/en-us/azure/azure-resource-manager/troubleshooting/error-sku-not-available)</li><li>[Azure VM sizes - Dsv5 series](https://learn.microsoft.com/en-us/azure/virtual-machines/sizes/general-purpose/dsv5-series)</li></ul> |
 | **Conflict - No available instances to satisfy this request** | Azure App Service has insufficient capacity in the region | This error occurs when Azure App Service doesn't have enough available compute instances in the selected region to provision or scale your app.<br><br>**Common Causes:**<br><ul><li>High demand in the selected region (e.g., East US, West Europe)</li><li>Specific SKUs experiencing capacity constraints (Free, Shared, or certain Premium tiers)</li><li>Multiple rapid deployments in the same region</li></ul><br>**Resolution:**<br><ul><li>**Wait and Retry** (15-30 minutes): `azd up`</li><li>**Deploy to a New Resource Group** (Recommended for urgent cases):<br>```<br>azd down --force --purge<br>azd up<br>```</li><li>**Try a Different Region:**<br>Update region in `main.bicep` or `azure.yaml` to a less congested region (e.g., `westus2`, `centralus`, `northeurope`)</li><li>**Use a Different SKU/Tier:**<br>If using Free/Shared tier, upgrade to Basic or Standard<br>Check SKU availability: `az appservice list-locations --sku <sku-name>`</li></ul><br>**Reference:** [Azure App Service Plans](https://learn.microsoft.com/en-us/azure/app-service/overview-hosting-plans) |
 
 --------------------------------

infra/main.bicep

@@ -150,7 +150,7 @@ param vmAdminUsername string?
 param vmAdminPassword string?
 
 @description('Optional. Size of the Jumpbox Virtual Machine when created. Set to custom value if enablePrivateNetworking is true.')
-param vmSize string = 'Standard_DS2_v2'
+param vmSize string = 'Standard_D2s_v5'
 
 @description('Optional: Existing Log Analytics Workspace Resource ID')
 param existingLogAnalyticsWorkspaceId string = ''
@@ -384,7 +384,7 @@ module jumpboxVM 'br/public:avm/res/compute/virtual-machine:0.21.0' = if (enable
   name: take('avm.res.compute.virtual-machine.${jumpboxVmName}', 64)
   params: {
     name: take(jumpboxVmName, 15) // Shorten VM name to 15 characters to avoid Azure limits
-    vmSize: vmSize ?? 'Standard_DS2_v2'
+    vmSize: vmSize ?? 'Standard_D2s_v5'
     location: location
     adminUsername: vmAdminUsername ?? 'JumpboxAdminUser'
     adminPassword: vmAdminPassword ?? 'JumpboxAdminP@ssw0rd1234!'

infra/main.json

@@ -6,7 +6,7 @@
     "_generator": {
       "name": "bicep",
       "version": "0.41.2.15936",
-      "templateHash": "5621595257944878269"
+      "templateHash": "15865612374745110055"
     }
   },
   "parameters": {
@@ -273,7 +273,7 @@
     },
     "vmSize": {
       "type": "string",
-      "defaultValue": "Standard_DS2_v2",
+      "defaultValue": "Standard_D2s_v5",
       "metadata": {
         "description": "Optional. Size of the Jumpbox Virtual Machine when created. Set to custom value if enablePrivateNetworking is true."
       }
@@ -9006,7 +9006,7 @@
             "value": "[take(variables('jumpboxVmName'), 15)]"
           },
           "vmSize": {
-            "value": "[coalesce(parameters('vmSize'), 'Standard_DS2_v2')]"
+            "value": "[coalesce(parameters('vmSize'), 'Standard_D2s_v5')]"
           },
           "location": {
             "value": "[parameters('location')]"
@@ -30053,8 +30053,8 @@
       },
       "dependsOn": [
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').aiServices)]",
-        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').openAI)]",
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').cognitiveServices)]",
+        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').openAI)]",
         "logAnalyticsWorkspace",
         "userAssignedIdentity",
         "virtualNetwork"
@@ -40364,9 +40364,9 @@
         }
       },
       "dependsOn": [
+        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').storageQueue)]",
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').storageBlob)]",
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').storageFile)]",
-        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').storageQueue)]",
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').storageDfs)]",
         "userAssignedIdentity",
         "virtualNetwork"

infra/main.waf.parameters.json

@@ -74,6 +74,9 @@
     "vmAdminPassword": {
       "value": "${AZURE_ENV_VM_ADMIN_PASSWORD}"
     },
+    "vmSize": {
+      "value": "${AZURE_ENV_VM_SIZE}"
+    },
     "usecase":{
       "value": "${AZURE_ENV_USE_CASE}"
     }

infra/main_custom.bicep

@@ -150,7 +150,7 @@ param vmAdminUsername string?
 param vmAdminPassword string?
 
 @description('Optional. Size of the Jumpbox Virtual Machine when created. Set to custom value if enablePrivateNetworking is true.')
-param vmSize string = 'Standard_DS2_v2'
+param vmSize string = 'Standard_D2s_v5'
 
 @description('Optional: Existing Log Analytics Workspace Resource ID')
 param existingLogAnalyticsWorkspaceId string = ''
@@ -384,7 +384,7 @@ module jumpboxVM 'br/public:avm/res/compute/virtual-machine:0.21.0' = if (enable
   name: take('avm.res.compute.virtual-machine.${jumpboxVmName}', 64)
   params: {
     name: take(jumpboxVmName, 15) // Shorten VM name to 15 characters to avoid Azure limits
-    vmSize: vmSize ?? 'Standard_DS2_v2'
+    vmSize: vmSize ?? 'Standard_D2s_v5'
     location: location
     adminUsername: vmAdminUsername ?? 'JumpboxAdminUser'
     adminPassword: vmAdminPassword ?? 'JumpboxAdminP@ssw0rd1234!'

infra/modules/virtualNetwork.bicep

@@ -181,9 +181,10 @@ param resourceSuffix string
 // VM Size Notes:
 // 1 B-series VMs (like Standard_B2ms) do not support accelerated networking.
 // 2 Pick a VM size that does support accelerated networking (the usual jump-box candidates):
-//     Standard_DS2_v2 (2 vCPU, 7 GiB RAM, Premium SSD) // The most broadly available (it’s a legacy SKU supported in virtually every region).
-//     Standard_D2s_v3 (2 vCPU, 8 GiB RAM, Premium SSD) //  next most common
-//     Standard_D2s_v4 (2 vCPU, 8 GiB RAM, Premium SSD)  // Newest, so fewer regions availabl
+//     Standard_D2s_v5 (2 vCPU, 8 GiB RAM, Premium SSD) // Current-gen, widely available, cost-effective (default).
+//     Standard_DS2_v2 (2 vCPU, 7 GiB RAM, Premium SSD) // Legacy SKU, broadly available but older generation.
+//     Standard_D2s_v3 (2 vCPU, 8 GiB RAM, Premium SSD) // Older generation alternative.
+//     Standard_D2s_v4 (2 vCPU, 8 GiB RAM, Premium SSD) // Previous generation.
 
 // Subnet Classless Inter-Doman Routing (CIDR)  Sizing Reference Table (Best Practices)
 // | CIDR      | # of Addresses | # of /24s | Notes                                 |