Azure Resource Manager and Powershell DSC - changes not being applied

Question

I have an ARM template with a Powershell DSC extension section running the following DSC:

Configuration Name { Node MachineName { #IIS Role WindowsFeature IIS { Name = “Web-Server” Ensure = “Present” } #IIS GUI WindowsFeature WebServerManagementConsole { Name = "Web-Mgmt-Console" Ensure = "Present" } } } 

This runs fine and as expected. The problem occurs if I try to change anything (e.g. add a new WindowsFeature or change an Ensure option to "Absent"). These changes are not reflected on the server.

Is there a flag or option to enable ARM to push DSC changes to the server?

Answer 1

Yeah, the DSC extension does not apply changes to existing machines with previous versions of your DSC templates. The only way I have been able to get this to work is to delete the DSC extension and then re-run the ARM template to re-apply it, with your changes.

This is not the case if you use the Azure Automation pull server (so pull instead of push) this will pull new changes.