Azure Image Gallery Simplifies Image Sharing and Management

The Azure Image Gallery is a game-changer for anyone who's struggled with image sharing and management in the cloud. With it, you can centrally manage and share images across your organization, making it easier to deploy consistent and secure environments.

Azure Image Gallery simplifies image sharing and management by providing a single location to store and manage all your images. This eliminates the need for multiple storage locations and reduces the risk of image duplication and inconsistencies.

By using Azure Image Gallery, you can reduce the time and effort required to deploy new environments, which is especially important for large-scale applications. In fact, the gallery can reduce the time it takes to deploy a new environment by up to 50%.

For more insights, see: Deploy Docker Image on Azure

Image Management is a breeze with Azure's Shared Image Gallery. You can store and share images across subscriptions and Azure Active Directory tenants, making it easy to collaborate with others.

With three new Azure Resource Manager resources - gallery, image definition, and image version - you can organize images in logical groups and publish multiple versions of your images as you update or patch applications.

You can use Azure role-based access control (RBAC) to share your galleries or image definitions with other users who can then deploy VMs in their subscriptions, even across Azure Active Directory tenants.

For example, if a company acquires another, they can suddenly have Azure infrastructure spread across Azure AD tenants, making it easy to share images across tenants. Similarly, a company with multiple subsidiaries can share images across their Azure AD tenants.

Here are some common scenarios where sharing images across tenants becomes useful:

To ensure your images are highly available, you can store them in zone-redundant storage (ZRS) accounts in regions with Availability Zones. This allows you to specify storage account type for each of the target regions and check the regional availability of zone-redundant storage.

To check the Image Gallery and Image Definition, simply select the created resource and verify the Definitions.

A fresh viewpoint: Azure Availability

With Azure Image Gallery, you can make your images highly available by storing them in zone-redundant storage (ZRS) accounts in regions with Availability Zones. This provides resilience against an Availability Zone failure in the region.

You can also choose the account type for each target region, with Standard_ZRS being an option for regions with Availability Zones. For more information on regional availability of ZRS, see Data redundancy.

Replication is another key feature of Azure Image Gallery, allowing you to automatically replicate your resources to other Azure regions. This can help save on storage costs and ensure that your images are available globally.

Consider reading: Azure Data Storage

Creating an image version can take a few moments, so be patient.

You can create multiple versions of your images as you update or patch applications, which helps you organize images in logical groups.

Creating the image and replicating it to both regions can take a few moments, so wait until this part is finished before creating a VM.

The process of creating an image version involves submitting a template to the service, which will download any dependent artifacts and store them in a staging resource group.

Creating the image and replicating it to both regions can take a few moments, so be prepared for a short wait.

Making images highly available is crucial for businesses that operate globally. You can store your images in zone-redundant storage (ZRS) accounts in regions with Availability Zones.

High availability is provided by Azure Zone Redundant Storage (ZRS), which offers resilience against an Availability Zone failure in the region. This means you can choose to store your images in ZRS accounts in regions with Availability Zones.

You can also choose the account type for each of the target regions. The default storage account type is Standard_LRS, but you can choose Standard_ZRS for regions with Availability Zones.

Images can be used with read permissions on them to deploy virtual machines and disks.

Here are some key features of high availability in Azure Compute Gallery:

By choosing the right storage account type, you can ensure your images are highly available and can be used to deploy virtual machines and disks.

Azure Compute Gallery has limits on deploying resources, including 100 galleries per subscription per region, 1,000 image definitions, and 10,000 image versions.

You can deploy up to 1,000 VM instances in a scale set, and it's recommended to keep one replica for every 20 VMs created concurrently. For example, if you're creating 120 VMs concurrently, keep at least 6 replicas of your image.

Resource move isn't supported for Azure compute gallery resources, and any disk attached to the image must be less than or equal to 2 TB in size.

Here's a summary of the recommended replica count:

Scaling is crucial for ensuring your deployments can handle increased demand. You can deploy up to 1,000 VM instances in a scale set with Azure Compute Gallery.

Having multiple replicas can help prevent instance creation processing from being throttled due to overloading of a single replica. This is especially important in multi-VM deployment scenarios.

We recommend keeping one replica for every 20 VMs created concurrently. For example, if you're creating 120 VMs concurrently, keep at least 6 replicas of your image.

For each scale set you create concurrently, keep one replica. This will help you scale your deployments linearly with each extra replica.

Over-provisioning the number of replicas is always a good idea, especially when dealing with large resources or complex content. This will help you stay ahead of demand and avoid throttling issues.

Here's a quick reference guide to help you plan your replicas:

You're looking to deploy resources using Azure Compute Galleries, but you're not sure about the limits. Well, let me tell you, there are some limits you should be aware of.

There are 100 galleries allowed per subscription, per region. You can deploy up to 1,000 image definitions per subscription, per region. Image versions are also limited to 10,000 per subscription, per region.

If you're planning to replicate images, be aware that you can have up to 100 replicas per image version. However, for most use cases, 50 replicas should be sufficient.

There's also a limit on disk size, any disk attached to the image must be less than or equal to 2 TB in size. And, as a heads up, resource move isn't supported for Azure compute gallery resources.

Here's a quick rundown of the limits to keep in mind:

SDK Support plays a crucial role in creating Azure Compute Galleries.

The following programming languages have SDK support for creating Azure Compute Galleries: .NET, Java, Node.js, Python, and Go.

These SDKs make it easier to manage and scale your Azure resources, allowing you to automate tasks and integrate with other services.

Here are the SDKs that support creating Azure Compute Galleries: