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Update workload-identity-federation-config-app-trust-managed-identity.md #1299

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82 changes: 41 additions & 41 deletions docs/workload-id/workload-identity-federation-config-app-trust-managed-identity.md
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Original file line number Diff line number Diff line change
Expand Up @@ -180,42 +180,42 @@ using Azure.Storage.Blobs;

internal class Program
{
// This example demonstrates how to access an Azure blob storage account by utilizing the manage identity credential.
// This example demonstrates how to access an Azure blob storage account by utilizing the manage identity credential.
static void Main(string[] args)
{
string storageAccountName = "YOUR_STORAGE_ACCOUNT_NAME";
string containerName = "CONTAINER_NAME";
string storageAccountName = "YOUR_STORAGE_ACCOUNT_NAME";
string containerName = "CONTAINER_NAME";

// The application must be granted access on the target resource
string appClientId = "YOUR_APP_CLIENT_ID";

// The tenant where the target resource is created, in this example, the storage account tenant
// If the resource tenant different from the app tenant, your app needs to be
string resourceTenantId = "YOUR_RESOURCE_TENANT_ID";

// The managed identity which you configured as a Federated Identity Credential (FIC)
string miClientId = "YOUR_MANAGED_IDENTITY_CLIENT_ID";

// Audience value must be one of the below values depending on the target cloud.
// Public cloud: api://AzureADTokenExchange
// Fairfax: api://AzureADTokenExchangeUSGov
// Mooncake: api://AzureADTokenExchangeChina
// USNat: api://AzureADTokenExchangeUSNat
// USSec: api://AzureADTokenExchangeUSSec
string audience = "api://AzureADTokenExchange";

// 1. Create an assertion with the managed identity access token, so that it can be exchanged an app token
var miCredential = new ManagedIdentityCredential(managedIdentityClientId);
ClientAssertionCredential assertion = new(
tenantId,
appClientId,
async (token) =>
{
// fetch Managed Identity token for the specified audience
var tokenRequestContext = new Azure.Core.TokenRequestContext(new[] { $"{audience}/.default" });
var accessToken = await miCredential.GetTokenAsync(tokenRequestContext).ConfigureAwait(false);
return accessToken.Token;
});
// The application must be granted access on the target resource
string appClientId = "YOUR_APP_CLIENT_ID";

// The tenant where the target resource is created, in this example, the storage account tenant
// If the resource tenant different from the app tenant, your app needs to be
string resourceTenantId = "YOUR_RESOURCE_TENANT_ID";

// The managed identity which you configured as a Federated Identity Credential (FIC)
string miClientId = "YOUR_MANAGED_IDENTITY_CLIENT_ID";

// Audience value must be one of the below values depending on the target cloud.
// Public cloud: api://AzureADTokenExchange
// Fairfax: api://AzureADTokenExchangeUSGov
// Mooncake: api://AzureADTokenExchangeChina
// USNat: api://AzureADTokenExchangeUSNat
// USSec: api://AzureADTokenExchangeUSSec
string audience = "api://AzureADTokenExchange";

// 1. Create an assertion with the managed identity access token, so that it can be exchanged an app token
var miCredential = new ManagedIdentityCredential(managedIdentityClientId);
ClientAssertionCredential assertion = new(
tenantId,
appClientId,
async (token) =>
{
// fetch Managed Identity token for the specified audience
var tokenRequestContext = new Azure.Core.TokenRequestContext(new[] { $"{audience}/.default" });
var accessToken = await miCredential.GetTokenAsync(tokenRequestContext).ConfigureAwait(false);
return accessToken.Token;
});

// 2. The assertion can be used to obtain an App token (taken care of by the SDK)
var containerClient = new BlobContainerClient(new Uri($"https://{storageAccountName}.blob.core.windows.net/{containerName}"), assertion);
Expand All @@ -226,7 +226,7 @@ internal class Program
BlobClient blobClient = containerClient.GetBlobClient(blob.Name);
Console.WriteLine($"Blob name: {blobClent.Name}, uri: {blobClient.Uri}");
}
}
}
}
```

Expand All @@ -247,7 +247,7 @@ In **Microsoft.Identity.Web**, a web application or web API can replace the clie
"ManagedIdentityClientId": "YOUR_USER_ASSIGNED_MANAGED_IDENTITY_CLIENT_ID",
"TokenExchangeUrl":"api://AzureADTokenExchange"
}
]
]
}
}
```
Expand All @@ -269,8 +269,8 @@ internal class Program
{
static async Task Main(string[] args)
{
string storageAccountName = "YOUR_STORAGE_ACCOUNT_NAME";
string containerName = "CONTAINER_NAME";
string storageAccountName = "YOUR_STORAGE_ACCOUNT_NAME";
string containerName = "CONTAINER_NAME";

string appClientId = "YOUR_APP_CLIENT_ID";
string resourceTenantId = "YOUR_RESOURCE_TENANT_ID";
Expand Down Expand Up @@ -299,8 +299,8 @@ internal class Program
.Build();

// Get the federated app token for the storage account
string[] scopes = [$"https://{storageAccountName}.blob.core.windows.net/.default"];
AuthenticationResult result = await app.AcquireTokenForClient(scopes).ExecuteAsync().ConfigureAwait(false);
string[] scopes = [$"https://{storageAccountName}.blob.core.windows.net/.default"];
AuthenticationResult result = await app.AcquireTokenForClient(scopes).ExecuteAsync().ConfigureAwait(false);

TokenCredential tokenCredential = new AccessTokenCredential(result.AccessToken);
var client = new BlobContainerClient(
Expand All @@ -313,10 +313,10 @@ internal class Program
BlobClient blobClient = containerClient.GetBlobClient(blob.Name);
Console.WriteLine($"Blob name: {blobClient.Name}, URI: {blobClient.Uri}");
}
}
}
}
```

## See also

- [Important considerations and restrictions for federated identity credentials](./workload-identity-federation-considerations.md).
- [Important considerations and restrictions for federated identity credentials](./workload-identity-federation-considerations.md).