Tips and tricks to perform custom domain operations in Azure Front Door Premium

Hi Team, 

Can you please tell me how to Onboard a root or apex domain to Azure Front Door?

I have hosted website in AKS and able to access website with azure load balancer and it's working. 

I have created Azure front door and added domain and it's validated and it's approved state. 

But I am getting waring message to create CNAME/alias entry. 

My domain is root domain "myweb.xyz"

"myweb.xyz" this is my custom domain and purchased from DNS provider Godday website. 

can you please tell me how to create CNAME entry here for Azure front door and make it work WEB traffic goes via front door?