Category: Azure Policy

It Is Time to Erase OMS Acronym From Your Dictionary

As I still see people confused and not informed about OMS I’ve decided to write this blog post and lay my thoughts around the end of OMS.
If you are not sure what is OMS that is ok and you do not necessary need to know but if you are curious you should check out my blog post What is OMS and a Brief History of It. At Ignite 2018 Microsoft probably announced the last major change related to OMS. This was announced on the [Azure blog](New full stack monitoring capabilities in Azure Monitor) and at Ignite session. To put it in short Log Analytics (which is in 99% what people refer to when they say OMS) is part of Azure Monitor. In Azure Monitor you might see it being called just Logs for short. But besides that there are actually way more changes some of which happened at Ignite others were happening for quite some time.

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Demystifying Azure Policies with ARM Templates

In my blog post Defining Input Parameters For Policy Definitions in ARM Template I’ve showed you how to use deploy policy definitions with parameters via ARM template. I didn’t described completely on why such workaround is needed but I think now it is good time to explain that as well. The topic is a little bit complex so I hope my explanation will help you understand it.

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Platform Image Azure Policy Definition Example

Azure Policy team has a GitHub repository of Policy definitions examples. Recently I’ve been looking at some of the examples there and I’ve noticed that one of them was not working correctly. Specifically I am referring to Platform Image Policy. Additionally the example contains only the rules. It does not have ARM template for deploying the definition. You will notice also that the policy is pretty static as it does not contain parameters. Because of that based on that sample I would like to create an example on my own and show it to you.

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Defining Input Parameters For Policy Definitions in ARM Template

My good friend and fellow MVP Tao Yang wrote a great post on Using ARM Templates to Deploying Azure Policy Definitions That Requires Input Parameters. Azure Policy has two terms that you should be aware:

  • Policy Definition – This is the policy itself. This is the definition of what will be governed. The policy definition when created does not do anything until it is assigned. There are policy definitions available out of the box (created by Microsoft) and such that can be created on your own. Out of box policies are of type built-in and the ones created by you are custom.
  • Policy Assignment – This assigns policy definition to be applied at specific level like subscription, management group or resource group.

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