VM Scale Sets and Load Balancing
Build a public load balancer, deploy a minimal Linux VM scale set behind it, validate health probes and backend pool membership, then plan the two-VM fallback for when scale set quotas or permissions block the primary path.
Lab Overview
Practice the Azure scaling and load balancing skills that AZ-104 administrators are expected to operate.
You will prepare an Azure CLI workspace, create a Standard public load balancer with a health probe and rule, deploy a minimal Uniform VM scale set (1-2 instances on an allowed small VM size) wired into the load balancer backend pool, configure a simple autoscale profile, and validate end-to-end health and traffic distribution.
Because VM scale set quota and provider permissions can be restricted on shared subscriptions, the lab is designed to run under Contributor and includes a clearly scoped fallback task: plan and document a two-VM-behind-a-load-balancer topology with health probes so you can still meet the learning objective if the scale set path is blocked.
What You'll Learn
Prepare an Azure CLI workspace for scale set and load balancer operations
Create a Standard public load balancer with a health probe and load balancing rule
Deploy a minimal Uniform VM scale set behind a load balancer using an allowed region and VM size
Configure an autoscale profile and validate health probe and backend pool state
Plan a two-VM plus load balancer fallback topology for when scale set deployment is blocked
Prerequisites
Basic command line familiarity
Basic understanding of Azure resource groups, virtual machines, and virtual networks
Basic Linux shell experience
Technologies Covered
Part of a Course
This lab is part of the Microsoft Azure Administrator (AZ-104) course
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