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Quickstart: Integrate an Azure Storage account with Azure Content Delivery Network

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Important

Azure CDN Standard from Microsoft (classic) will be retired on September 30, 2027. To avoid any service disruption, it is important that you migrate your Azure CDN Standard from Microsoft (classic) profiles to Azure Front Door Standard or Premium tier by September 30, 2027. For more information, see Azure CDN Standard from Microsoft (classic) retirement.

Azure CDN from Edgio will be retired on November 4, 2025. You must migrate your workload to Azure Front Door before this date to avoid service disruption. For more information, see Azure CDN from Edgio retirement FAQ.

In this quickstart, you enable Azure Content Delivery Network to cache content from Azure Storage. Azure Content Delivery Network offers developers a global solution for delivering high-bandwidth content. It can cache blobs and static content of compute instances at physical nodes in the United States, Europe, Asia, Australia, and South America.

Note

Azure Content Delivery Network provides permanent access to Azure Storage resources and removing access requires manual steps.

Prerequisites

Sign in to the Azure portal

Sign in to the Azure portal with your Azure account.

Create a storage account

A storage account gives access to Azure Storage services. The storage account represents the highest level of the namespace for accessing each of the Azure Storage service components: Azure Blob, Queue, and Table storage. Take note that Azure Files can be only accessed through SMB protocol and cannot be put directly behind an Azure CDN which only supports HTTP(80) and HTTPS(443) protocols. For more information, see Introduction to Microsoft Azure Storage.

To create a storage account, you must be either the service administrator or a coadministrator for the associated subscription.

  1. In the Azure portal, select Create a resource on the upper left. The Create a resource pane appears.

  2. Search for Storage account and select Storage account from the list. Then select Create:

    Screenshot of create a storage account.

  3. In the Create storage account pane, enter the following details:

    Setting Value
    Resource group Select Create new and use the name CDNQuickstart-rg. You can also use an existing resource group if you prefer.
    Storage account name Enter a name for the account using 3-24 lowercase letters and numbers only. The name must be unique across Azure, and becomes the host name in the URL that's used to address blob, queue, or table resources for the subscription. To address a container resource in Blob storage, use a URI in the following format: HTTP://<storageaccountname>.blob.core.windows.net/<container-name>.
    Region Select an Azure region near you from the dropdown list.

    Leave all other details set to the defaults, then select Review + create.

  4. Creating the storage account might take several minutes to complete. Once creation is complete, select Go to resource to open the storage account's page for the next step.

Enable Azure Content Delivery Network for the storage account

  1. On the page for your storage account, select Security + Networking > Front Door and CDN from the left menu. The Front Door and CDN page appears.

    Screenshot of create a content delivery network endpoint.

  2. In the New endpoint section, enter the following information:

    Setting Value
    Service type Azure Content Delivery Network
    Create new/use existing profile Create new
    Profile name Enter your profile name, for example, cdn-profile-123. A profile is a collection of endpoints.
    content delivery network endpoint name Enter your endpoint hostname, such as cdn-endpoint-123. This name must be globally unique across Azure because it's to access your cached resources at the URL <endpoint-name>.azureedge.net.
    Origin hostname By default, a new content delivery network endpoint uses the hostname of your storage account as the origin server.
    Pricing tier Select one of the options, such as Microsoft CDN (classic).

  3. Select Create. After the endpoint is created, it appears in the endpoint list.

    Screenshot of a storage new content delivery network endpoint..

Tip

If you want to specify advanced configuration settings for your content delivery network endpoint, such as large file download optimization, you can instead use the Azure Content Delivery Network extension to create a content delivery network profile and endpoint.

Enable additional content delivery network features

From the storage account Azure CDN page, select the content delivery network endpoint from the list to open the content delivery network endpoint configuration page.

From this page, you can enable additional content delivery network features for your delivery, such as compression, query string caching, and geo filtering.

Enable SAS

If you want to grant limited access to private storage containers, you can use the Shared Access Signature (SAS) feature of your Azure Storage account. A SAS is a URI that grants restricted access rights to your Azure Storage resources without exposing your account key. For more information, see Using Azure Content Delivery Network with SAS.

Access content delivery network content

To access cached content on the content delivery network, use the content delivery network URL provided in the portal. The address for a cached blob has the following format:

HTTP://<endpoint-name>.azureedge.net/<myPublicContainer>/<BlobName>

Note

After you enable Azure Content Delivery Network access to a storage account, all publicly available objects are eligible for content delivery network POP caching. If you modify an object that's currently cached in the content delivery network, the new content will not be available via Azure Content Delivery Network until Azure Content Delivery Network refreshes its content after the time to live period for the cached content expires.

Remove content from Azure Content Delivery Network

If you no longer want to cache an object in Azure Content Delivery Network, you can take one of the following steps:

  • Make the container private instead of public. For more information, see Manage anonymous read access to containers and blobs.
  • Disable or delete the content delivery network endpoint by using the Azure portal.
  • Modify your hosted service to no longer respond to requests for the object.

An object that's already cached in Azure Content Delivery Network remains cached until the time to live period for the object expires or until the endpoint is purged. When the time to live period expires, Azure Content Delivery Network determines whether the content delivery network endpoint is still valid and the object is still anonymously accessible. If they are not, the object will no longer be cached.

Clean up resources

In the preceding steps, you created a content delivery network profile and an endpoint in a resource group. Save these resources if you want to go to Next steps and learn how to add a custom domain to your endpoint. However, if you don't expect to use these resources in the future, you can delete them by deleting the resource group, thus avoiding additional charges:

  1. From the left-hand menu in the Azure portal, select Resource groups and then select CDNQuickstart-rg*.

  2. On the Resource group page, select Delete resource group, enter CDNQuickstart-rg in the text box, then select Delete.

    This action will delete the resource group, profile, and endpoint that you created in this quickstart.

  3. To delete your storage account, select it from the dashboard, then select Delete from the top menu.

Next steps

Tutorial: Add a custom domain to your Azure Content Delivery Network endpoint