Quickstart: Create a Front Door Standard/Premium using Bicep

This quickstart describes how to use Bicep to create an Azure Front Door Standard/Premium with a Web App as origin.

Bicep is a domain-specific language (DSL) that uses declarative syntax to deploy Azure resources. It provides concise syntax, reliable type safety, and support for code reuse. Bicep offers the best authoring experience for your infrastructure-as-code solutions in Azure.

Prerequisites

  • If you don't have an Azure subscription, create a free account before you begin.
  • IP or FQDN of a website or web application.

Review the Bicep file

The Bicep file used in this quickstart is from Azure Quickstart Templates.

In this quickstart, you'll create a Front Door Standard/Premium, an App Service, and configure the App Service to validate that traffic has come through the Front Door origin.

@description('The location into which regionally scoped resources should be deployed. Note that Front Door is a global resource.')
param location string = resourceGroup().location

@description('The name of the App Service application to create. This must be globally unique.')
param appName string = 'myapp-${uniqueString(resourceGroup().id)}'

@description('The name of the SKU to use when creating the App Service plan.')
param appServicePlanSkuName string = 'S1'

@description('The number of worker instances of your App Service plan that should be provisioned.')
param appServicePlanCapacity int = 1

@description('The name of the Front Door endpoint to create. This must be globally unique.')
param frontDoorEndpointName string = 'afd-${uniqueString(resourceGroup().id)}'

@description('The name of the SKU to use when creating the Front Door profile.')
@allowed([
  'Standard_AzureFrontDoor'
  'Premium_AzureFrontDoor'
])
param frontDoorSkuName string = 'Standard_AzureFrontDoor'

var appServicePlanName = 'AppServicePlan'

var frontDoorProfileName = 'MyFrontDoor'
var frontDoorOriginGroupName = 'MyOriginGroup'
var frontDoorOriginName = 'MyAppServiceOrigin'
var frontDoorRouteName = 'MyRoute'

resource frontDoorProfile 'Microsoft.Cdn/profiles@2021-06-01' = {
  name: frontDoorProfileName
  location: 'global'
  sku: {
    name: frontDoorSkuName
  }
}

resource appServicePlan 'Microsoft.Web/serverFarms@2020-06-01' = {
  name: appServicePlanName
  location: location
  sku: {
    name: appServicePlanSkuName
    capacity: appServicePlanCapacity
  }
  kind: 'app'
}

resource app 'Microsoft.Web/sites@2020-06-01' = {
  name: appName
  location: location
  kind: 'app'
  identity: {
    type: 'SystemAssigned'
  }
  properties: {
    serverFarmId: appServicePlan.id
    httpsOnly: true
    siteConfig: {
      detailedErrorLoggingEnabled: true
      httpLoggingEnabled: true
      requestTracingEnabled: true
      ftpsState: 'Disabled'
      minTlsVersion: '1.2'
      ipSecurityRestrictions: [
        {
          tag: 'ServiceTag'
          ipAddress: 'AzureFrontDoor.Backend'
          action: 'Allow'
          priority: 100
          headers: {
            'x-azure-fdid': [
              frontDoorProfile.properties.frontDoorId
            ]
          }
          name: 'Allow traffic from Front Door'
        }
      ]
    }
  }
}

resource frontDoorEndpoint 'Microsoft.Cdn/profiles/afdEndpoints@2021-06-01' = {
  name: frontDoorEndpointName
  parent: frontDoorProfile
  location: 'global'
  properties: {
    enabledState: 'Enabled'
  }
}

resource frontDoorOriginGroup 'Microsoft.Cdn/profiles/originGroups@2021-06-01' = {
  name: frontDoorOriginGroupName
  parent: frontDoorProfile
  properties: {
    loadBalancingSettings: {
      sampleSize: 4
      successfulSamplesRequired: 3
    }
    healthProbeSettings: {
      probePath: '/'
      probeRequestType: 'HEAD'
      probeProtocol: 'Http'
      probeIntervalInSeconds: 100
    }
  }
}

resource frontDoorOrigin 'Microsoft.Cdn/profiles/originGroups/origins@2021-06-01' = {
  name: frontDoorOriginName
  parent: frontDoorOriginGroup
  properties: {
    hostName: app.properties.defaultHostName
    httpPort: 80
    httpsPort: 443
    originHostHeader: app.properties.defaultHostName
    priority: 1
    weight: 1000
  }
}

resource frontDoorRoute 'Microsoft.Cdn/profiles/afdEndpoints/routes@2021-06-01' = {
  name: frontDoorRouteName
  parent: frontDoorEndpoint
  dependsOn: [
    frontDoorOrigin // This explicit dependency is required to ensure that the origin group is not empty when the route is created.
  ]
  properties: {
    originGroup: {
      id: frontDoorOriginGroup.id
    }
    supportedProtocols: [
      'Http'
      'Https'
    ]
    patternsToMatch: [
      '/*'
    ]
    forwardingProtocol: 'HttpsOnly'
    linkToDefaultDomain: 'Enabled'
    httpsRedirect: 'Enabled'
  }
}

output appServiceHostName string = app.properties.defaultHostName
output frontDoorEndpointHostName string = frontDoorEndpoint.properties.hostName

Multiple Azure resources are defined in the Bicep file:

Deploy the Bicep file

  1. Save the Bicep file as main.bicep to your local computer.

  2. Deploy the Bicep file using either Azure CLI or Azure PowerShell.

    az group create --name exampleRG --location eastus
    az deployment group create --resource-group exampleRG --template-file main.bicep
    

    When the deployment finishes, the output is similar to:

    Screenshot of Front Door Bicep PowerShell deployment output.

Validate the deployment

Use Azure CLI or Azure PowerShell to list the deployed resources in the resource group.

az resource list --resource-group exampleRG

You can also use the Azure portal to validate the deployment.

  1. Sign in to the Azure portal.

  2. Select Resource groups from the left pane.

  3. Select the resource group that you created in the previous section.

  4. Select the Front Door you created and you'll be able to see the endpoint hostname. Copy the hostname and paste it on to the address bar of a browser. Press enter and your request will automatically get routed to the web app.

    Screenshot of the message: Your web app is running and waiting for your content.

Clean up resources

When no longer needed, use the Azure portal, Azure CLI, or Azure PowerShell to delete the Front Door service and the resource group. This removes the Front Door and all the related resources.

az group delete --name exampleRG

Next steps

In this quickstart, you created a:

  • Front Door
  • App Service plan
  • Web App

To learn how to add a custom domain to your Front Door, continue to the Front Door tutorials.