Deploy Diag settings on Azure Services at scale

@Stanislav Zhelyazkov any other way to implement this solution using azure built-in service.

Not all is available via built-in policies as far as I understand. If you look at https://www.azadvertizer.net/azpolicyinitiativesadvertizer/Deploy-Diagnostics-LogAnalytics.html in row Policy Used you can see which policies are used for that initiative. There are 7 pages of policies. In type column you can see if it is Built-in or part of Enterprise-Scale Landing Zone (ALZ). What you can do is take all the policy definitions from Enterprise-Scale Landing Zone and create them in your environment. After that you either create policy assignment for each one + the built-in or create one policy initiative referencing all these and assign the policy initiative. This is not so technically hard thing to do but also depends on your skills. For sure it will take you some time as there are around 60 policy definitions to create. Overall all Enterprise-Scale Landing Zone policies are located here. There is also a Bicep template that deploys all the policies of Enterprise-Scale Landing Zone that probably you can use to deploy them but you might need to modify it as it has some hardcoded values and of course deploys all Enterprise-Scale Landing Zone policies not only the one you need.