Does Azure Saves only specific deleted resources such as storage accounts?
Can we configure/recover the Front Door using its managed certificate we have?
My view, there is no way to un-delete a resource in Azure, with few exceptions. If any support request on subscription from past 3 months, there was a chance to re-configure the same with old configuration.
Can we configure/recover the Front Door using its managed certificate we have?
We can able to re-create Front Door with the same certificate and re-configure the same. Azure does not save configurations of deleted resources.
NOTE: refer tutorial
If any newer version of the certificate is selected, on certificate rotation. It takes up to 72 hours for certificate/secret to be deployed.
I found one post from [Travis Cragg, MSFT] on recovery that relates to the same.
As part of the testing, I created a Front Door.
There was no option for recover deleted instance.