Access Key Vault secret when deploying Azure Managed Applications
When you need to pass a secure value (like a password) as a parameter during deployment, you can retrieve the value from an Azure Key Vault. To access the Key Vault when deploying Managed Applications, you must grant access to the Appliance Resource Provider service principal. The Managed Applications service uses this identity to run operations. To successfully retrieve a value from a Key Vault during deployment, the service principal must be able to access the Key Vault.
This article describes how to configure the Key Vault to work with Managed Applications.
Enable template deployment
In the portal, select your Key Vault.
Select Access policies.
Select Click to show advanced access policies.
Select Enable access to Azure Resource Manager for template deployment. Then, select Save.
Add service as contributor
Assign the Contributor role to the Appliance Resource Provider user at the key vault scope.
For detailed steps, see Assign Azure roles using the Azure portal.
Reference Key Vault secret
To pass a secret from a Key Vault to a template in your Managed Application, you must use a linked or nested template and reference the Key Vault in the parameters for the linked or nested template. Provide the resource ID of the Key Vault and the name of the secret.
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"location": {
"type": "string",
"defaultValue": "[resourceGroup().location]",
"metadata": {
"description": "The location where the resources will be deployed."
}
},
"vaultName": {
"type": "string",
"metadata": {
"description": "The name of the keyvault that contains the secret."
}
},
"secretName": {
"type": "string",
"metadata": {
"description": "The name of the secret."
}
},
"vaultResourceGroupName": {
"type": "string",
"metadata": {
"description": "The name of the resource group that contains the keyvault."
}
},
"vaultSubscription": {
"type": "string",
"defaultValue": "[subscription().subscriptionId]",
"metadata": {
"description": "The name of the subscription that contains the keyvault."
}
}
},
"resources": [
{
"type": "Microsoft.Resources/deployments",
"apiVersion": "2018-05-01",
"name": "dynamicSecret",
"properties": {
"mode": "Incremental",
"expressionEvaluationOptions": {
"scope": "inner"
},
"template": {
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"adminLogin": {
"type": "string"
},
"adminPassword": {
"type": "securestring"
},
"location": {
"type": "string"
}
},
"variables": {
"sqlServerName": "[concat('sql-', uniqueString(resourceGroup().id, 'sql'))]"
},
"resources": [
{
"type": "Microsoft.Sql/servers",
"apiVersion": "2018-06-01-preview",
"name": "[variables('sqlServerName')]",
"location": "[parameters('location')]",
"properties": {
"administratorLogin": "[parameters('adminLogin')]",
"administratorLoginPassword": "[parameters('adminPassword')]"
}
}
],
"outputs": {
"sqlFQDN": {
"type": "string",
"value": "[reference(variables('sqlServerName')).fullyQualifiedDomainName]"
}
}
},
"parameters": {
"location": {
"value": "[parameters('location')]"
},
"adminLogin": {
"value": "ghuser"
},
"adminPassword": {
"reference": {
"keyVault": {
"id": "[resourceId(parameters('vaultSubscription'), parameters('vaultResourceGroupName'), 'Microsoft.KeyVault/vaults', parameters('vaultName'))]"
},
"secretName": "[parameters('secretName')]"
}
}
}
}
}
],
"outputs": {
}
}
Next steps
You've configured your Key Vault to be accessible during deployment of a Managed Application.
- For information about passing a value from a Key Vault as a template parameter, see Use Azure Key Vault to pass secure parameter value during deployment.
- For managed application examples, see Sample projects for Azure managed applications.
- To learn how to create a UI definition file for a managed application, see Get started with CreateUiDefinition.