I have not attempted this yet. I never heard from anyone. I have submitted requests to the pfSense team to ask if they would officially offer one but I was told that it was not currently planned. I am sure that I could get it working as you can connect to the instance at OCI via a serial connection which is needed for the installation. I'd prefer to have an officially supported one which I could receive support for and would pay (just as I currently do for the physical deployment which my company uses). The support from Netgate for pfSense is actually really good. They really know their stuff and responded quickly. I wish I had this quality of support from other vendors. It's money well spent.