Automate Azure CPU & Worker Alerts

I currently add CPU-usage and worker-percentage alerts by hand for both our Dev and Stg subscriptions. Because we already manage resources through PowerShell, I would like a fully scripted way to create and maintain those alerts—preferably in PowerShell, but I’m open to Azure CLI, Bicep, ARM templates or Terraform if you can show a clear advantage.

What matters is that, once your script runs, Azure Monitor holds two metric alerts for every target resource (CPU and Worker % respectively), with threshold, time-window, severity and action group values taken from parameters. Running the script again must update the alerts without duplicating them, so the process can live safely in a pipeline.

Please include all of the following in your delivery:

• A well-commented script or template file that targets both Dev and Stg environments
• A concise README describing required modules, authentication steps and example commands
• Proof of concept output (screenshot or CLI capture) that shows the alerts created and idempotent behaviour when re-run

I’ll consider the job complete when the script reliably produces and maintains those alerts in my Azure tenant with no manual steps remaining.