# RMFR4 - AVM Consistent Feature & Extension Resources Value Add

Module Specification for the Azure Verified Modules (AVM) program

ID: RMFR4 - Category: Composition - AVM Consistent Feature & Extension Resources Value Add Resource modules support the following optional features/extension resources, as specified, if supported by the primary resource. The top-level variable/parameter names MUST be:
Optional Features/Extension Resources Bicep Parameter Name Terraform Variable Name MUST/SHOULD Diagnostic Settings diagnosticSettings diagnostic_settings MUST Role Assignments roleAssignments role_assignments MUST Resource Locks lock lock MUST Tags tags tags MUST Managed Identities (System / User Assigned) managedIdentities managed_identities MUST Private Endpoints privateEndpoints private_endpoints MUST Customer Managed Keys customerManagedKey customer_managed_key MUST Azure Monitor Alerts alerts alerts SHOULD Resource modules MUST NOT deploy required/dependent resources for the optional features/extension resources specified above. For example, for Diagnostic Settings the resource module MUST NOT deploy the Log Analytics Workspace, this is expected to be already in existence from the perspective of the resource module deployed via another method/module etc.
Note Please note that the implementation of Customer Managed Keys from an ARM API perspective is different across various RPs that implement Customer Managed Keys in their service. For that reason you may see differences between modules on how Customer Managed Keys are handled and implemented, but functionality will be as expected.
Module owners MAY choose to utilize cross repo dependencies for these “add-on” resources, or MAY chose to implement the code directly in their own repo/module. So long as the implementation and outputs are as per the specifications requirements, then this is acceptable.
Tip Make sure to checkout the language specific specifications for more info on this:
Bicep Terraform 

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Source: https://raw.githubusercontent.com/Azure/Azure-Verified-Modules/refs/heads/main/docs/content/specs-defs/includes/shared/resource/functional/RMFR4.md
Last Modified: 0001-01-01