Azure Classroomnotes 28/Sep/2022

Virtual Machine Scale Sets Continued

• Auto Scaling:
  • Auto scaling is a feature of VMSS where the instance count is set dynamically based on some metric.
  • Auto scaling will not scale out more than maximum number of instances set and will not scale in less than minimum number of instances.
• In this case we have used Inbount NAT to login into VM
• Lets configure auto scaling
  
  
  
  
• Now lets artificially increase load on the vm using stress tool by executing this command in the VM

stress -v --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 20m

• Wait for 5-10 minutes to see the increase in instance count
  
• Kill the stress tool by executing ctrl + c and wait for another 5-10 mins you should witness the scale in.