Quickstart: Create an event hub by using an ARM template

06/23/2020
3 minutes to read

Azure Event Hubs is a Big Data streaming platform and event ingestion service, capable of receiving and processing millions of events per second. Event Hubs can process and store events, data, or telemetry produced by distributed software and devices. Data sent to an event hub can be transformed and stored using any real-time analytics provider or batching/storage adapters. For detailed overview of Event Hubs, see Event Hubs overview and Event Hubs features. In this quickstart, you create an event hub by using an Azure Resource Manager template (ARM template). You deploy an ARM template to create a namespace of type Event Hubs, with one event hub.

An ARM template is a JavaScript Object Notation (JSON) file that defines the infrastructure and configuration for your project. The template uses declarative syntax. In declarative syntax, you describe your intended deployment without writing the sequence of programming commands to create the deployment.

If your environment meets the prerequisites and you're familiar with using ARM templates, select the Deploy to Azure button. The template will open in the Azure portal.

Prerequisites

If you don't have an Azure subscription, create a free account before you begin.

Review the template

The template used in this quickstart is from Azure Quickstart Templates.

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "projectName": {
      "type": "string",
      "metadata": {
        "description": "Specifies a project name that is used to generate the Event Hub name and the Namespace name."
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Specifies the Azure location for all resources."
      }
    },
    "eventHubSku": {
      "type": "string",
      "defaultValue": "Standard",
      "allowedValues": [ "Basic", "Standard" ],
      "metadata": {
        "description": "Specifies the messaging tier for Event Hub Namespace."
      }
    }
  },
  "variables": {
    "eventHubNamespaceName": "[concat(parameters('projectName'), 'ns')]",
    "eventHubName": "[parameters('projectName')]"
  },
  "resources": [
    {
      "type": "Microsoft.EventHub/namespaces",
      "apiVersion": "2018-01-01-preview",
      "name": "[variables('eventHubNamespaceName')]",
      "location": "[parameters('location')]",
      "sku": {
        "name": "[parameters('eventHubSku')]",
        "tier": "[parameters('eventHubSku')]",
        "capacity": 1
      },
      "properties": {
        "isAutoInflateEnabled": false,
        "maximumThroughputUnits": 0
      }
    },
    {
      "type": "Microsoft.EventHub/namespaces/eventhubs",
      "apiVersion": "2017-04-01",
      "name": "[concat(variables('eventHubNamespaceName'), '/', variables('eventHubName'))]",
      "location": "[parameters('location')]",
      "dependsOn": [
        "[resourceId('Microsoft.EventHub/namespaces', variables('eventHubNamespaceName'))]"
      ],
      "properties": {
        "messageRetentionInDays": 7,
        "partitionCount": 1
      }
    }
  ]
}

The resources defined in the template include:

To find more template samples, see Azure Quickstart Templates.

Deploy the template

To deploy the template:

Select Try it from the following code block, and then follow the instructions to sign in to the Azure Cloud Shell.

$projectName = Read-Host -Prompt "Enter a project name that is used for generating resource names"
$location = Read-Host -Prompt "Enter the location (i.e. centralus)"
$resourceGroupName = "${projectName}rg"
$templateUri = "https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/101-eventhubs-create-namespace-and-eventhub/azuredeploy.json"

New-AzResourceGroup -Name $resourceGroupName -Location $location
New-AzResourceGroupDeployment -ResourceGroupName $resourceGroupName -TemplateUri $templateUri -projectName $projectName

Write-Host "Press [ENTER] to continue ..."

It takes a few moments to create an event hub.

Select Copy to copy the PowerShell script.
Right-click the shell console, and then select Paste.

Validate the deployment

To verify the deployment, you can either open the resource group from the Azure portal, or use the following Azure PowerShell script. If the Cloud Shell is still open, you don't need to copy/run the first line (Read-Host).

$projectName = Read-Host -Prompt "Enter the same project name that you used in the last procedure"
$resourceGroupName = "${projectName}rg"
$namespaceName = "${projectName}ns"

Get-AzEventHub -ResourceGroupName $resourceGroupName -Namespace $namespaceName

Write-Host "Press [ENTER] to continue ..."

Clean up resources

When the Azure resources are no longer needed, clean up the resources you deployed by deleting the resource group. If the Cloud Shell is still open, you don't need to copy/run the first line (Read-Host).

$projectName = Read-Host -Prompt "Enter the same project name that you used in the last procedure"
$resourceGroupName = "${projectName}rg"

Remove-AzResourceGroup -ResourceGroupName $resourceGroupName

Write-Host "Press [ENTER] to continue ..."

Next steps

In this article, you created an Event Hubs namespace, and an event hub in the namespace. For step-by-step instructions to send events to (or) receive events from an event hub, see the Send and receive events tutorials: