Whats New: Bicep Support in Microsoft Sentinel Repositories

We are thrilled to announce a significant enhancement to the Microsoft Sentinel Repositories feature: support for Bicep templates. This update empowers security teams and DevOps professionals to manage Sentinel-as-Code with greater efficiency, scalability, and clarity.

What Are Bicep Templates?

Bicep is a domain-specific language (DSL) for deploying Azure resources declaratively. As an evolution of JSON-based Azure Resource Manager (ARM) templates, Bicep provides:

• Simplified syntax: Write concise and human-readable infrastructure definitions.
• Modular design: Reuse code for consistent deployments.
• Full integration: Seamless compatibility with Azure services and tooling.

Integrating Bicep with Microsoft Sentinel Repositories

Microsoft Sentinel’s Repositories feature already allows organizations to integrate with GitHub or Azure DevOps to manage their Sentinel configurations in a version-controlled, collaborative manner. With the introduction of Bicep support, you can now:

• Author cleaner and more maintainable templates for your Sentinel resources.
• Leverage modular components to define custom analytics rules, playbooks, and data connectors.
• Enjoy faster iteration cycles when deploying and updating Sentinel configurations.

Key Benefits of Bicep Support

1. Streamlined Configuration Management Use a modern, intuitive syntax to define Sentinel resources, reducing the complexity associated with traditional ARM templates.
2. Improved Collaboration Teams can version-control Bicep templates within their preferred repository, enabling peer reviews, automated CI/CD pipelines, and traceable change histories.
3. Rapid Deployment Deploy consistent, error-free Sentinel configurations with reusable modules and built-in tooling for parameterization and validation.

Getting Started

1. Recreate Your Repository Connection If your repository connection was established before November 24, 2024, you must recreate the connection to enable Bicep support. 
2. Create Your First Bicep Template. You can use the ARM to Bicep decompiling tool to convert your ARM templates to Bicep. 
3. Deploy Templates Copy the template to the relevant folder in our repository and watch it appearing in your Microsoft Sentinel workspace.

Detailed instructions on setting up repositories can be found in the repositories documentation.

Resources to Accelerate Your Journey

• Bicep Documentation
• Microsoft Sentinel Repositories documentation
• Repositories samples and tools, including Bicep examples such as these ones.

Feedback and Next Steps

We’re excited to see how this new feature helps you scale your security operations and infrastructure management. Try out Bicep template support today and share your feedback through the Azure Sentinel Tech Community.

Happy deploying!