Why Automation Matters
In cloud environments, manual configuration leads to errors, inconsistency, and wasted time.
Azure provides multiple automation tools to:
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Deploy resources consistently.
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Enforce governance at scale.
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Save costs by automating operations (e.g., shutting down unused VMs).
Key Azure Automation Tools at a Glance
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ARM Templates (Infrastructure as Code): JSON templates that define resources for repeatable deployments.
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Azure Automation Accounts: Used to create and run Runbooks (scripts for repetitive tasks).
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Azure CLI & PowerShell: Command-line tools to script resource management.
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CI/CD Pipelines: Automate app and infrastructure deployment using GitHub Actions or Azure DevOps.
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Policy & Blueprints: Automate compliance enforcement.
Benefits of Automation
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Consistency: Every environment is deployed the same way.
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Speed: Faster provisioning and updates.
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Scalability: Automate large deployments.
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Cost Savings: Stop/start VMs on schedule, clean up unused resources.
Confusion Buster 🚨
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ARM Template vs Script
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ARM Template = declarative (what you want, Azure figures out how).
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Script (CLI/PowerShell) = imperative (step by step).
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Automation vs DevOps Pipelines
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Automation Account = operations tasks (patching, VM stop/start).
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DevOps Pipeline = CI/CD for apps/infrastructure deployments.
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Exam trap: If the scenario says “repeatable infrastructure deployments,” → ARM Templates. If it says “schedule VM shutdown nightly,” → Automation Account Runbook.
Simple Example
A company:
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Uses an ARM Template to deploy a consistent 3-tier app environment (web, app, DB).
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Sets up an Automation Account Runbook to shut down dev/test VMs at 7 PM daily.
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Uses Azure DevOps Pipeline to continuously deploy new app code into App Service.
Exam Tip
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“Infrastructure as Code in Azure” → ARM Templates.
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“Automate VM start/stop on schedule” → Automation Account Runbooks.
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“Continuous app deployment” → DevOps Pipeline / GitHub Actions.
What to Expect in the Exam
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Direct Q: “Which Azure service allows Infrastructure as Code?” → ARM Templates.
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Scenario: “Company wants to shut down dev/test VMs automatically after hours.” → Automation Account Runbook.
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Trick Q: “ARM Templates are imperative scripts.” (False — they’re declarative).