Managed Service fabric BYOVNET not working " UseCustomSubnet cannot be set to False for BYOVNET clusters."

Question

Hi,

I was trying to set up a managed service fabric cluster using an ARM template. Following the sample here: https://github.com/Azure-Samples/service-fabric-cluster-templates/blob/master/SF-Managed-Standard-SKU-2-NT-BYOVNET/azuredeploy.json

The only property that I see that needs to be set is "subnetId", but if I do that on the cluster level. I get the error:
UseCustomSubnet cannot be set to False for BYOVNET clusters.

If I add that property, I get the error that it is invalid:
Invalid JSON tokens: properties.usecustomsubnet

So I'm a bit stuck here. Anyone tried to configure this lately?

Grtz,

Bjorn

Answer 1

I got feedback from support:

these are the steps to take:

Based on Configure network settings for Service Fabric managed clusters - Azure Service Fabric | Microsoft Learn, you need to:
1- Get the service Id from your subscription for Service Fabric Resource Provider application
2- Obtain the SubnetId from the existing VNet
3- make sure to get the SFRP principal ID and the correct Role assignment