azure-resource-manager-durabletask-dotnet

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# Azure.ResourceManager.DurableTask (.NET)

Management plane SDK for provisioning and managing Azure Durable Task Scheduler resources via Azure Resource Manager.

> **⚠️ Management vs Data Plane**
> - **This SDK (Azure.ResourceManager.DurableTask)**: Create schedulers, task hubs, configure retention policies
> - **Data Plane SDK (Microsoft.DurableTask.Client.AzureManaged)**: Start orchestrations, query instances, send events

## Installation

```bash
dotnet add package Azure.ResourceManager.DurableTask
dotnet add package Azure.Identity
```

**Current Versions**: Stable v1.0.0 (2025-11-03), Preview v1.0.0-beta.1 (2025-04-24)
**API Version**: 2025-11-01

## Environment Variables

```bash
AZURE_SUBSCRIPTION_ID=<your-subscription-id> # Required: Azure subscription ID
AZURE_RESOURCE_GROUP=<your-resource-group> # Required: Azure resource group name
AZURE_TOKEN_CREDENTIALS=prod  # Required only if DefaultAzureCredential is used in production
AZURE_TENANT_ID=<tenant-id> # For service principal auth (optional)
AZURE_CLIENT_ID=<client-id> # For service principal auth (optional)
AZURE_CLIENT_SECRET=<client-secret> # For service principal auth (optional)
```

## Authentication

```csharp
using Azure.Identity;
using Azure.ResourceManager;
using Azure.ResourceManager.DurableTask;

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
var credential = new DefaultAzureCredential(
    DefaultAzureCredential.DefaultEnvironmentVariableName
);
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet#credential-classes
// var credential = new ManagedIdentityCredential();
var armClient = new ArmClient(credential);

// Get subscription
var subscriptionId = Environment.GetEnvironmentVariable("AZURE_SUBSCRIPTION_ID");
var subscription = armClient.GetSubscriptionResource(
    new ResourceIdentifier($"/subscriptions/{subscriptionId}"));
```

## Resource Hierarchy

```
ArmClient
└── SubscriptionResource
    └── ResourceGroupResource
        └── DurableTaskSchedulerResource
            ├── DurableTaskHubResource
            └── DurableTaskRetentionPolicyResource
```

## Core Workflow

### 1. Create Durable Task Scheduler

```csharp
using Azure.ResourceManager.DurableTask;
using Azure.ResourceManager.DurableTask.Models;

// Get resource group
var resourceGroup = await subscription
    .GetResourceGroupAsync("my-resource-group");

// Define scheduler with Dedicated SKU
var schedulerData = new DurableTaskSchedulerData(AzureLocation.EastUS)
{
    Properties = new DurableTaskSchedulerProperties
    {
        Sku = new DurableTaskSchedulerSku(DurableTaskSchedulerSkuName.Dedicated)
        {
            Capacity = 1  // Number of instances
        },
        // Optional: IP allowlist for network security
        IPAllowlist = { "10.0.0.0/24", "192.168.1.0/24" }
    }
};

// Create scheduler (long-running operation)
var schedulerCollection = resourceGroup.Value.GetDurableTaskSchedulers();
var operation = await schedulerCollection.CreateOrUpdateAsync(
    WaitUntil.Completed,
    "my-scheduler",
    schedulerData);

DurableTaskSchedulerResource scheduler = operation.Value;
Console.WriteLine($"Scheduler created: {scheduler.Data.Name}");
Console.WriteLine($"Endpoint: {scheduler.Data.Properties.Endpoint}");
```

### 2. Create Scheduler with Consumption SKU

```csharp
// Consumption SKU (serverless)
var consumptionSchedulerData = new DurableTaskSchedulerData(AzureLocation.EastUS)
{
    Properties = new DurableTaskSchedulerProperties
    {
        Sku = new DurableTaskSchedulerSku(DurableTaskSchedulerSkuName.Consumption)
        // No capacity needed for consumption
    }
};

var operation = await schedulerCollection.CreateOrUpdateAsync(
    WaitUntil.Completed,
    "my-serverless-scheduler",
    consumptionSchedulerData);
```

From microsoft/skills, MIT.

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