Managing Secrets and Secure Access in Azure Applications

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Managed identities for Azure resources provides Azure services with an automatically managed identity in Azure Active Directory (Azure AD).

This example demonstrates using a managed identity with Azure App Service to access Azure KeyVault, Azure Storage, and Azure SQL Database without passwords or secrets.

The application consists of several parts:

• An ASP.NET Application which reads data from a SQL Database and from a file in Blob Storage
• App Service which host the application. The application binaries are placed in Blob Storage, with Blob Url placed as a secret in Azure Key Vault
• App Service has a Managed Identity enabled
• The identify is granted access to the SQL Server, Blob Storage, and Key Vault
• No secret information is placed in App Service configuration: all access rights are derived from Active Directory

Running the App

1. Create a new stack:

   pulumi stack init dev
   

2. Login to Azure CLI (you will be prompted to do this during deployment if you forget this step):

   az login
   

3. Build and publish the ASP.NET Core project:

   dotnet publish webapp
   

4. Set an appropriate Azure location and subscription like:

   pulumi config set azure:location westus
   pulumi config set azure:subscriptionId <YOUR_SUBSCRIPTION_ID>
   

5. Run pulumi up to preview and deploy changes:

   $ pulumi up
   Previewing changes:
   ...
   
   Performing changes:
   ...
   info: 15 changes performed:
       + 15 resources created
   Update duration: 4m16s
   

6. Check the deployed website endpoint:

   $ pulumi stack output endpoint
   https://app129968b8.azurewebsites.net/
   $ curl "$(pulumi stack output endpoint)"
   Hello 311378b3-16b7-4889-a8d7-2eb77478beba@50f73f6a-e8e3-46b6-969c-bf026712a650! Here is your...