This repository is for Solita interview discussion.

• Secure an Azure Function app that is currently exposed to the public internet.
• The goal is to restrict access and create a secure environment for the function app to operate.

• The solution leverages a Virtual Network (VNet) to isolate the Azure Function and control network traffic.
• A private endpoint is created within the VNet, providing a secure access point for authorized resources within the VNet to reach the Azure Function.
• This approach restricts both inbound and outbound traffic, enhancing the overall security posture.

• VNet Integration: Enabling VNet integration for the Azure Function restricts inbound and outbound traffic, limiting access to authorized resources.
• Private Endpoint: Creating a private endpoint within the VNet provides a secure and private connection point for authorized resources to access the function.
• Storage Account Access: Securing the Azure storage account used by the function by restricting access only to the VNet ensures secure communication between the function and storage.

• Client Members: To discuss changes to the function app, potential cost implications of upgrading the App Service plan, and the estimated time to implement the security measures (ETA).
• Cloud Architect/DevOps Engineer: Responsible for implementing and collaborating on the secure architecture for both Azure Function and VNet deployment.
• Security Engineer: Reviews the architecture to ensure it meets security best practices.
• Application Developers: Developers who utilize the Azure Function in their applications.

• Consumption Plan Limitations: VNet integration is not supported with the Consumption Hosting option. Upgrading the hosting option to Functions Premium or App service plan is required.
• Migration Process: Directly migrating an Azure Function from a Consumption plan to an App Service plan is not currently supported. A recommended approach involves:
  • Creating a new function app within the desired App Service plan.
  • Migrating existing Function configuration and code to the new function app.
• Downtime: There might be a brief period of downtime during the traffic migration process.
• Cost Potential: App Service plans have associated costs based on the chosen tier, which might be higher compared to the Consumption plan.
• Testing: Thoroughly testing the function's functionality and security after implementing the VNet restrictions is crucial.

App Service Hosting Plan:

Architecture: