Azure vmss without a load balancer

Question

My requirement is to scale vm instance (linux based custom image) based on CPU usage. Tried to follow steps mentioned in VMSS (virtual machine scale sets : https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-linux-autoscale), but it creates a LB in front which we don't want. Is it possible to avoid LB in vmss ?

If VMSS without LB is not the option, is there any other way in azure to do this ? I am able to achieve this in AWS (using autoscale group) and GCP (instance group), so trying to get similar functionality in Azure.

hp

I don't want LB at all. but want public IP for all instances in set. — hp2017
if you don't want to add LB, we can use classic module, create VMs in cloud service, and setting scale, azure will create a built-in LB for those VMs. — Jason Ye

sendmarsh sendmarsh · Accepted Answer · 2017-04-12T14:36:46

Though a load balancer is created when you create a VM scale set in the portal, other modes supporting external connectivity to scale sets include:

Create a separate VM with a public IP address in the same VNET as the scale set which can route connections to the scale set VMs (also known as a jump box). E.g. https://github.com/Azure/azure-quickstart-templates/tree/master/201-vmss-windows-jumpbox or https://github.com/Azure/azure-quickstart-templates/tree/master/201-vmss-linux-jumpbox
Assign a public IP address to each VM in the scale set. This feature is currently in limited preview. See here for more details: https://github.com/gbowerman/azure-myriad/tree/master/publicip-dns

Azure vmss without a load balancer

4 Answers