I evaluated using FreeBSD for a project. The biggest challenge for me was I couldn't figure a way to fit modern DevOps into FreeBsd. OCI compliant containers are not supported. The best way I could come up with for a minimum blue-green deployment strategy was writing a ton of scripts myself. I can not imagine running a fleet of FreeBSD servers where a team of developers deploy 10+ times a week to a swarm of containers running micro services.
What solutions do other practitioners use with FreeBSD? Or do you abandon modern DevOps practices entirely and hold a meeting to determine partition sizes, provision servers to individual services running on specific named computers and plan for a software upgrade for weeks in advance of a deployment?
If you are working with FreeBSD in the cloud, you can use Terraform to provision on AWS and GCP. If you have to manage bare metal FreeBSD systems at scale (hundreds of systems), most devops folks use Ansible. There are playbooks out there for this. It's not too painful to work with.
If you are looking for Kubernetes on FreeBSD, don't. For on-prem Kubernetes you could deploy on Linux virtual machines on FreeBSD servers, managed using Ansible. But it's never going to be as fast as Linux. I wouldn't use it in production.
The best answer is to leverage FreeBSD for what it's good at : bare metal services like databases, build environments, file servers, and networking devices. And co-manage your deployment with Linux (Kubernetes) using Ansible/Terraform.
What solutions do other practitioners use with FreeBSD? Or do you abandon modern DevOps practices entirely and hold a meeting to determine partition sizes, provision servers to individual services running on specific named computers and plan for a software upgrade for weeks in advance of a deployment?