azureazure-sql-databaseazure-storageazure-rm-template
How to enable using arm template vulnerabilityAssessments for sql server with storage account behind firewall
When enabling sql server vulnerabilityAssessments feature using arm template, following error is thrown when storage account has a firewall on.
"error": {
"code": "InvalidStorageAccountCredentials",
"message": "The provided storage account shared access signature or account storage key is not valid."
}
}
Template part:
{
"type": "Microsoft.Sql/servers/securityAlertPolicies",
"apiVersion": "2017-03-01-preview",
"name": "[concat(variables('sqls01Name'), '/Default')]",
"dependsOn": [
],
"properties": {
"state": "Enabled",
"emailAddresses": "[variables('emailActionGroupAddresses')]",
"emailAccountAdmins": false
}
},
{
"type": "Microsoft.Sql/servers/vulnerabilityAssessments",
"apiVersion": "2018-06-01-preview",
"location": "westeurope",
"name": "[concat(variables('sqls01Name'), '/Default')]",
"dependsOn": [
"[resourceId('Microsoft.Storage/storageAccounts', variables('defenderSa'))]"
],
"properties": {
"storageContainerPath": "[concat('https://',variables('defenderSa'),'.blob.core.windows.net/vulnerability-assessment/')]",
"storageAccountAccessKey": "[listKeys(resourceId('Microsoft.Storage/storageAccounts', variables('defenderSa')), providers('Microsoft.Storage', 'storageAccounts').apiVersions[0]).keys[0].value]",
"recurringScans": {
"isEnabled": true,
"emailSubscriptionAdmins": false,
"emails": "[variables('emailActionGroupAddresses')]"
}
}
},
{
"name": "[variables('defenderSA')]",
"type": "Microsoft.Storage/storageAccounts",
"apiVersion": "2019-06-01",
"location": "westeurope",
"properties": {
"accessTier": "Cool",
"allowBlobPublicAccess": false,
"supportsHttpsTrafficOnly": true,
"networkAcls": {
"bypass": "AzureServices",
"virtualNetworkRules": [{
"id": "[variables('subnetId')]",
"action": "Allow"
}],
"ipRules": [
],
"defaultAction": "Deny"
}
},
"dependsOn": [
],
"sku": {
"name": "Standard_LRS",
"tier": "Standard"
},
"kind": "StorageV2",
"tags": {
}
}
I notices that when enabling the feature from portal following communicate is displayed:
You have selected a storage that is behind a firewall or in a virtual network. Please be aware that using this storage will create a managed identity for the server and it will be granted 'storage blob data contributor' role on the selected storage.
The assignment is indeed created and the assessment works, however when I try to replicate this in arm template with following code it still fails.
{
"type": "Microsoft.Storage/storageAccounts/providers/roleAssignments",
"name": "[concat(variables('defenderSA'),'/Microsoft.Authorization/',guid(variables('sqls01Name')))]",
"apiVersion": "2018-09-01-preview",
"dependsOn": [
"[resourceId('Microsoft.Storage/storageAccounts',variables('defenderSA'))]"
],
"properties": {
"roleDefinitionId": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', 'ba92f5b4-2d11-453d-a403-e96b0029c9fe')]",
"principalId": "[reference(resourceId('Microsoft.Sql/servers',variables('sqls01Name')),providers('Microsoft.Sql', 'servers').apiVersions[0],'Full').identity.principalId]"
}
}
Solution
Regarding the issue, please refer to the following template
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"clientIp": {
"type": "string",
"defaultValue": "",
"metadata": {
"description": "allow you client to access Azure storage "
}
},
"virtualNetworksName": {
"defaultValue": "testsql09",
"type": "String"
},
"serverName": {
"type": "string",
"defaultValue": "[uniqueString('sql', resourceGroup().id)]",
"metadata": {
"description": "The name of the SQL logical server."
}
},
"location": {
"type": "string",
"defaultValue": "[resourceGroup().location]",
"metadata": {
"description": "Location for all resources."
}
},
"administratorLogin": {
"type": "string",
"defaultValue": "sqladmin",
"metadata": {
"description": "The administrator username of the SQL logical server."
}
},
"administratorLoginPassword": {
"type": "securestring",
"defaultValue": "Password0123!",
"metadata": {
"description": "The administrator password of the SQL logical server."
}
},
"connectionType": {
"defaultValue": "Default",
"allowedValues": [ "Default", "Redirect", "Proxy" ],
"type": "string",
"metadata": {
"description": "SQL logical server connection type."
}
}
},
"variables": {
"serverResourceGroupName": "[resourceGroup().name]",
"subscriptionId": "[subscription().subscriptionId]",
"uniqueStorage": "[uniqueString(variables('subscriptionId'), variables('serverResourceGroupName'), parameters('location'))]",
"storageName": "[tolower(concat('sqlva', variables('uniqueStorage')))]",
"roleAssignmentName": "[guid(resourceId('Microsoft.Storage/storageAccounts', variables('storageName')), variables('storageBlobContributor'), resourceId('Microsoft.Sql/servers', parameters('serverName')))]",
"StorageBlobContributor": "[subscriptionResourceId('Microsoft.Authorization/roleDefinitions', 'ba92f5b4-2d11-453d-a403-e96b0029c9fe')]"
},
"resources": [
{
"type": "Microsoft.Network/virtualNetworks",
"apiVersion": "2020-05-01",
"name": "[parameters('virtualNetworksName')]",
"location": "southeastasia",
"properties": {
"addressSpace": {
"addressPrefixes": [
"10.18.0.0/24"
]
},
"subnets": [
{
"name": "default",
"properties": {
"addressPrefix": "10.18.0.0/24",
"serviceEndpoints": [
{
"service": "Microsoft.Storage"
}
],
"delegations": [],
"privateEndpointNetworkPolicies": "Enabled",
"privateLinkServiceNetworkPolicies": "Enabled"
}
}
],
"virtualNetworkPeerings": [],
"enableDdosProtection": false,
"enableVmProtection": false
}
},
{
"type": "Microsoft.Network/virtualNetworks/subnets",
"apiVersion": "2020-05-01",
"name": "[concat(parameters('virtualNetworksName'), '/default')]",
"dependsOn": [
"[resourceId('Microsoft.Network/virtualNetworks', parameters('virtualNetworksName'))]"
],
"properties": {
"addressPrefix": "10.18.0.0/24",
"serviceEndpoints": [
{
"service": "Microsoft.Storage"
}
],
"delegations": [],
"privateEndpointNetworkPolicies": "Enabled",
"privateLinkServiceNetworkPolicies": "Enabled"
}
},
{
"type": "Microsoft.Sql/servers",
"apiVersion": "2019-06-01-preview",
"name": "[parameters('serverName')]",
"location": "[parameters('location')]",
"identity": {
"type": "SystemAssigned"
},
"properties": {
"administratorLogin": "[parameters('administratorLogin')]",
"administratorLoginPassword": "[parameters('administratorLoginPassword')]",
"version": "12.0"
}
},
{
"type": "Microsoft.Sql/servers/databases",
"apiVersion": "2019-06-01-preview",
"name": "[concat(parameters('serverName'), '/test')]",
"location": "[parameters('location')]",
"dependsOn": [
"[resourceId('Microsoft.Sql/servers', parameters('serverName'))]"
],
"sku": {
"name": "Basic",
"tier": "Basic",
"capacity": 5
},
"kind": "v12.0,user",
"properties": {
"collation": "SQL_Latin1_General_CP1_CI_AS",
"maxSizeBytes": 2147483648,
"catalogCollation": "SQL_Latin1_General_CP1_CI_AS",
"zoneRedundant": false,
"readScale": "Disabled",
"storageAccountType": "LRS"
}
},
{
"type": "Microsoft.Sql/servers/securityAlertPolicies",
"apiVersion": "2020-02-02-preview",
"name": "[concat(parameters('serverName'), '/Default')]",
"dependsOn": [
"[resourceId('Microsoft.Sql/servers', parameters('serverName'))]"
],
"properties": {
"state": "Enabled",
"emailAccountAdmins": false
}
},
{
"type": "Microsoft.Sql/servers/vulnerabilityAssessments",
"apiVersion": "2018-06-01-preview",
"name": "[concat(parameters('serverName'), '/Default')]",
"dependsOn": [
"[resourceId('Microsoft.Sql/servers', parameters('serverName'))]",
"[resourceId('Microsoft.Sql/servers/securityAlertPolicies', parameters('serverName'), 'Default')]",
"[resourceId('Microsoft.Storage/storageAccounts', variables('storageName'))]",
"[extensionResourceId(resourceId('Microsoft.Storage/storageAccounts', variables('storageName')), 'Microsoft.Authorization/roleAssignments', variables('roleAssignmentName'))]"
],
"properties": {
"storageContainerPath": "[concat(reference(resourceId('Microsoft.Storage/storageAccounts', variables('storageName'))).primaryEndpoints.blob, 'vulnerability-assessment')]",
"recurringScans": {
"isEnabled": true,
"emailSubscriptionAdmins": false
}
}
},
{
"type": "Microsoft.Sql/servers/connectionPolicies",
"apiVersion": "2014-04-01",
"name": "[concat(parameters('serverName'), '/Default')]",
"dependsOn": [
"[resourceId('Microsoft.Sql/servers', parameters('serverName'))]"
],
"properties": {
"connectionType": "[parameters('connectionType')]"
}
},
{
"type": "Microsoft.Storage/storageAccounts",
"apiVersion": "2019-06-01",
"name": "[variables('storageName')]",
"location": "[parameters('location')]",
"dependsOn": [
"[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworksName'), 'default')]"
],
"sku": {
"name": "Standard_LRS"
},
"kind": "StorageV2",
"properties": {
"minimumTlsVersion": "TLS1_2",
"allowBlobPublicAccess": true,
"networkAcls": {
"bypass": "AzureServices",
"virtualNetworkRules": [
{
"id": "[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworksName'), 'default')]",
"action": "Allow",
"state": "Succeeded"
}
],
"ipRules": [
{
"value": "[parameters('clientIp')]",
"action": "Allow"
}
],
"defaultAction": "Deny"
}
}
},
{
"type": "Microsoft.Storage/storageAccounts/providers/roleAssignments",
"apiVersion": "2020-04-01-preview",
"name": "[concat(variables('storageName'), '/Microsoft.Authorization/', variables('roleAssignmentName'))]",
"dependsOn": [
"[resourceId('Microsoft.Sql/servers', parameters('serverName'))]",
"[resourceId('Microsoft.Storage/storageAccounts', variables('storageName'))]"
],
"properties": {
"roleDefinitionId": "[variables('StorageBlobContributor')]",
"principalId": "[reference(resourceId('Microsoft.Sql/servers', parameters('serverName')), '2020-02-02-preview', 'Full').identity.principalId]",
"scope": "[resourceId('Microsoft.Storage/storageAccounts', variables('storageName'))]",
"principalType": "ServicePrincipal"
}
}
]
}
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