What should you use to ensure repeatability when creating new resources in an Azure subscription?

To ensure repeatability when creating new resources in an Azure subscription, utilizing Azure Blueprints is the most effective approach. Azure Blueprints allows you to define a repeatable set of Azure resources, including resources, role assignments, and policies, in a standardized way. This ensures that your deployments are consistent and comply with organizational standards or governance requirements.

Using Azure Blueprints, you can create a blueprint definition that encapsulates everything needed for a specific environment—like resource groups, resource types, and dependencies—allowing for easy replication across multiple environments or subscriptions. This is particularly useful for organizations looking to maintain compliance or standardization as they scale their Azure implementations.

While other tools like Azure Policy are helpful for enforcing compliance and governance across resources, they don't focus specifically on creating and deploying resources themselves, making Azure Blueprints the more suitable choice for ensuring repeatable resource creation. Similarly, Microsoft Sentinel is primarily aimed at security information and event management, and Azure Batch is designed for running large-scale parallel and high-performance computing applications, neither of which are directly related to creating or managing resource repeatability.