AZ400 Lab | Enable Dynamic Configuration & Feature Flags | Azure DevOps 2026

AZ400 Lab | Enable Dynamic Configuration & Feature Flags | Azure App Configuration | Azure DevOps Tutorial 2026 Are your application settings scattered across dozens of config files, environment variables, and deployment scripts? There's a better way. In this hands-on lab, you'll implement Azure App Configuration to centralize all your application settings and feature flags in one secure, managed service. You'll enable dynamic configuration that updates without redeployment, and implement feature flags that let you control feature rollouts in real time — skills that are directly tested in the AZ-400 certification exam and used daily in enterprise DevOps teams worldwide. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 WHAT YOU'LL LEARN ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Why centralized configuration management is critical in modern cloud-native and distributed applications What Azure App Configuration is and how it solves the distributed configuration sprawl problem How dynamic configuration works: updating app settings at runtime without redeployment or downtime What feature flags are and how they enable controlled feature rollouts, A/B testing & canary releases How to integrate Azure App Configuration into a .NET application using the App Configuration SDK How to secure access to App Configuration using Microsoft Entra ID and connection strings How feature filters work: enabling features for specific users, percentages, or time windows The relationship between Azure App Configuration and Azure Key Vault for combined secrets & settings management Best practices for configuration management in cloud-native DevOps pipelines and applications How dynamic configuration and feature flags reduce deployment risk in enterprise environments ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧪 HANDS-ON LAB INCLUDES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Setting up Azure DevOps organization & Azure subscription ✅ Verifying Microsoft Entra ID Contributor/Owner role assignment ✅ Creating an Azure App Configuration instance in Azure portal ✅ Adding application settings & key-value pairs to App Config ✅ Connecting a .NET application to Azure App Configuration ✅ Enabling dynamic configuration refresh without app restart ✅ Testing live configuration updates in the running application ✅ Creating and managing feature flags in Azure App Configuration ✅ Implementing feature flag evaluation in the .NET application ✅ Toggling feature flags on/off in real time via Azure portal ✅ Observing immediate feature behavior changes without redeployment or pipeline execution ✅ Configuring feature filters for targeted rollouts ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 AZ-400 EXAM RELEVANCE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Maps to: "Implement and manage infrastructure as code" & "Design and implement a deployment strategy" & "Implement feature management" ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔑 KEY CONCEPTS COVERED ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → Azure App Configuration: purpose & architecture → Key-Value Store for centralized app settings → Dynamic Configuration Refresh (no redeployment needed) → Feature Flags: creation, management & evaluation → Feature Filters: percentage, time window & targeting → App Configuration SDK integration with .NET apps → Microsoft Entra ID access control for App Configuration → App Configuration vs Azure Key Vault: when to use each → Configuration sprawl problem in distributed apps → Feature flag patterns: canary releases, A/B testing, dark launches & kill switches → Sentinel keys for configuration change detection ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ PREREQUISITES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Microsoft Edge or Azure DevOps-supported browser Active Azure DevOps organization (free to create) Active Azure subscription Microsoft or Microsoft Entra account with Contributor or Owner role on the Azure subscription Recommended: Complete Lab 10 (Azure Key Vault) for full context on centralized secrets & settings management ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⏱ TIMESTAMPS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 PART 1 — CONCEPTUAL OVERVIEW 00:00 – Introduction & Lab Overview 🧪 PART 2 — HANDS-ON LAB 06:21 – Hands-On Lab Walkthrough ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔗 IMPORTANT LINKS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📋 Playlist:    • AZ-400 DevOps Certification: Complete Hand...   📖 Microsoft Learn AZ-400: https://learn.microsoft.com/en-us/cre... 🧪 Lab Instructions: https://microsoftlearning.github.io/A... 💻 GitHub: https://github.com/MicrosoftLearning/... 👍 LIKE | 🔔 SUBSCRIBE | 💬 COMMENT | 📤 SHARE #AZ400 #FeatureFlags #AzureAppConfiguration #AzureDevOps #DynamicConfig #FeatureManagement #DevOpsCertification #MicrosoftAzure #AZ400Lab #2026