How do I create a Service Principal for Terraform in Azure DevOps?

Run az ad sp create-for-rbac --name "YourSP" --role Contributor --scopes /subscriptions/YOUR_SUB_ID. Grab appId, password, tenant, sub ID. Add to ARM service connection.

Why separate infra and app repositories in pipelines?

Prevents trivial app changes from rebuilding infra. Enables team independence, clean rollbacks. Standard in prod teams.

Common errors with Ansible on Azure VMs?

SSH key permissions (chmod 400), dynamic IPs breaking inventory, missing become: yes for sudo.

⚙️ DevOps & Platform Eng

Two Repos, Zero Touches: The Bulletproof Way to Automate Azure App Deploys

DevOps engineers waste hours untangling monorepo messes. This Azure setup with Terraform and Ansible delivers clean separation, live apps, and pipelines that scale for teams.

theAIcatchup Apr 10, 2026 3 min read

Pipeline diagram showing Terraform provisioning Azure VMs and Ansible deploying EpicBook app

⚡ Key Takeaways

Split infra/app repos for independent pipelines—deploy 25% faster, per Gartner. 𝕏
Static IPs and Service Principals are non-negotiable for reliable Terraform-Azure links. 𝕏
Azure DevOps Secure Files keep keys safe; expect multi-pipeline rise by 2025. 𝕏

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theAIcatchup

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#Ansible #Azure DevOps #CI/CD pipelines #IaC pipelines #Terraform #iac #infrastructure-as-code

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