[Bicep-Virtual Machine Scale set AVM Review Feedback by VMSS PG] Best practices to be followed

[Kanik09]

Please follow the below best practices for the corresponding modules. Not all practices should be followed for both default and max.

 

VMSS Best Practice	Applicable AVM Module	Applicable for Default	Applicable for Max
Deploy VMSS with Flex Orchestration mode	Terraform, Bicep	Yes	Yes
Configure VMSS autoscale to custom and configure scaling metrics	Terraform, Bicep	No	Yes
Configure Predictive autoscale and atleast for forecast only	Terraform, Bicep	No	Yes
Deploy VMSS across availaibility zones with VMSS flex	Terraform, Bicep	Yes	Yes
Disable Force strictly even balance across zones to avoid scale in and out fail attempts	Terraform, Bicep	Yes	Yes
Enable VMSS application health monitoring	Terraform, Bicep	Yes if condition shared over Email is met.	Yes if condition shared over Email is met.
Enable Automatic Repair Policy	Terraform, Bicep	Requires health monitoring to be enabled.	Requires health monitoring to be enabled.
Set Patch orchestration options to Azure-orchestrated	Terraform, Bicep	Yes	Yes
Upgrade VMSS Image versions scheduled to be deprecated or already retired	Terraform, Bicep
Configure Allocation Policy Spreading Algorithm to max spreading	Terraform, Bicep	Yes	Yes

[microsoft-github-policy-service[bot]]

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[rahalan]

@Kanik09 thank you. I will look into it