Apr 19
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AZ400 Lab | Enable Continuous Integration with Azure Pipelines | YAML CI Pipeline & PR Validation | Azure DevOps Tutorial 2026 Continuous Integration is the heartbeat of any modern DevOps workflow — and this lab shows you exactly how to implement it inside Azure DevOps using YAML pipelines. You'll configure a real CI pipeline as code, wire it into a Pull Request validation process, and see how automated builds protect your codebase on every commit. This is one of the most exam-critical labs in the entire AZ-400 series. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 WHAT YOU'LL LEARN ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ - What Continuous Integration (CI) is and why it matters in DevOps - How to define build pipelines in Azure DevOps using YAML - How to configure a CI pipeline that triggers on every code commit - How to enforce build validation as part of a Pull Request process - How YAML CI pipelines serve as living code inside your repository - How to structure pipeline triggers, stages, and build steps in YAML - Best practices for protecting the main branch with PR build policies ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧪 HANDS-ON LAB INCLUDES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Setting up an Azure DevOps organization and project ✅ Creating a YAML-based CI pipeline from scratch ✅ Configuring pipeline triggers for continuous integration ✅ Setting up branch policies in Azure Repos ✅ Adding build validation to the Pull Request process ✅ Submitting a Pull Request and watching CI validation run ✅ Reviewing build results and pipeline logs ✅ Fixing a failed build and re-validating the Pull Request ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 AZ-400 CERTIFICATION RELEVANCE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ This lab directly maps to the AZ-400 exam domain: ➡ "Design and implement pipelines" ➡ "Design and implement a source control strategy" CI pipelines and PR validation policies are core exam topics. Microsoft tests your ability to configure YAML-based build pipelines, enforce branch protection through build policies, and implement CI as part of a broader DevOps strategy. This lab gives you the hands-on experience to answer both conceptual and scenario-based exam questions with confidence. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔑 KEY CONCEPTS COVERED ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → Continuous Integration (CI) principles and benefits → YAML Pipeline as Code in Azure DevOps → CI Triggers (push, PR, scheduled) → Pull Request Validation Builds → Branch Policies in Azure Repos → Build Stages, Jobs, and Steps in YAML → Pipeline Logs and Build Diagnostics → Protecting main/master branch with automated gates ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ PREREQUISITES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Before starting this lab, ensure you have: - Microsoft Edge or an Azure DevOps-supported browser - An active Azure DevOps organization (free to create) - Familiarity with YAML syntax is helpful - Recommended: Complete Lab 02 (Git & Azure Repos) and Lab 03 (Agent Pools & Pipeline Styles) before this lab ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔗 IMPORTANT LINKS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📋 Full Playlist (All AZ-400 Labs): https://www.youtube.com/playlist?list=PL9BWcEhV1pxgqJmzrX5PhGLqvLR0eRlpv 📖 Microsoft Learn – AZ-400 Certification: https://learn.microsoft.com/en-us/credentials/certifications/exams/az-400/ 🧪 Official Lab Instructions: https://microsoftlearning.github.io/AZ400-DesigningandImplementingMicrosoftDevOpsSolutions/ 💻 GitHub – Lab Source Files: https://github.com/MicrosoftLearning/AZ400-DesigningandImplementingMicrosoftDevOpsSolutions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⏱ TIMESTAMPS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 PART 1 — CONCEPTUAL OVERVIEW 00:00 – Introduction & Lab Overview 🧪 PART 2 — HANDS-ON LAB 06:10 – Lab walkthrough ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔔 SUPPORT THE SERIES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ If this lab helped you, please: 👍 LIKE the video — it helps more learners find this content 🔔 SUBSCRIBE & hit the bell for every new lab in the series 💬 COMMENT your questions — I respond to every one 📤 SHARE with your study group or DevOps team #AZ400 #AzureDevOps #ContinuousIntegration #AzurePipelines #YAMLPipeline #CICD #PullRequestValidation #DevOpsCertification #MicrosoftAzure #AZ400Lab #PipelineAsCode #BranchPolicy #DevOpsEngineer #AzureDevOps2026