Challenge LabIntermediate

Fix App Service to Function App Connectivity with VNet Integration

Troubleshoot and fix a broken connection between an Azure App Service and a Function App by configuring VNet Integration and access restrictions.

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40 minEstimated time
1Guided step
AutoVerification
IsolatedSandbox
Fix App Service to Function App Connectivity with VNet Integration

Lab overview

This challenge tests your ability to restore secure service-to-service communication on Azure App Service. A pre-provisioned Web App cannot reach a pre-provisioned Function App because the Function App has been hardened to block all public internet traffic, and the Web App's outbound calls currently exit through the public internet. Using the pre-provisioned virtual network, you need to route the Web App's outbound traffic through the VNet and configure the Function App's access restrictions to accept traffic from the Web App without re-exposing the Function App to the public internet.

Objectives

  • Enable VNet Integration on the Web App, connecting it to the integration-subnet in the pre-provisioned virtual network
  • Add an access restriction rule on the Function App that allows traffic from the integration-subnet
  • Verify the Web App can successfully call the Function App's HTTP-triggered function

Success Criteria

  • The Web App is connected to the integration-subnet via VNet Integration
  • The Function App has a Virtual Network access restriction rule allowing traffic from the integration-subnet
  • The Web App can call the Function App endpoint and receive a successful response (no 403 Forbidden)

Verified against your live environment

An automated validation engine inspects your actual resources and configurations as you work. Completion means the task was performed, not multiple choice, real-world proficiency.

[CHECK] validation_activelive
Inspecting deployed resources...
Verifying configuration state...
✓ Step requirements satisfied

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Related reading

Master Azure Virtual Networks: A Hands-on Guide to Building Secure Cloud InfrastructureMaster Azure Virtual Networks with secure design patterns, subnet strategies, and advanced networking techniques for enterprise cloud architecture.How to Configure Private Network Access for Your Azure Web ApplicationsConfigure private endpoints and VNet integration for Azure Web Apps to secure your applications from public internet access and comply with enterprise security requirements.Mastering Azure Virtual Machines: A Comprehensive Guide for 2025Master Azure Virtual Machines with practical deployment strategies, security best practices, and cost optimization techniques for cloud success.
PremiumIncluded in Premium
Duration
40 min
Steps
1

Environment

Live Cloud Environment

Every lab includes

  • Real environment, pre-credentialed
  • Automated checks on every step
  • Isolated sandbox, auto cleanup
  • AI-recommended next steps

Lab curriculum

  1. 01

    Challenge Scenario - Fix App Service to Function App Connectivity with VNet Integration

    3 automated checks

Skills validated

Azure Function AppAzure Virtual NetworkAzure App Service

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