The Let’s Encrypt open certificate authority ensures that the internet is no longer transmitted in plaintext. It issues digital certificates for free, and the service is completely automated in the right circumstances.
Let’s Encrypt is fully automated in most instances. In Windows, for example, you can automatically issue certificates from Let’s Encrypt using PowerShell and AWS.
I you’ve followed the steps outlined in the linked article from the previous sentence, you can then configure Azure Automation to handle the creation, validation and installation of a certificate on a firewall. Here’s what you need to do.
Log into your Azure portal. Click on “Create a Resource” and search for Azure Automation.