What’s the simplest way to spin up a simple „cattle, not pet“ routing VM? I don’t want to mess with any state, I just want version controllable config files. Ideally, if applying a version fails, it would automatically roll back to the previous state.
OpenWRT seems like it fits my description most closely, but maybe someone here is a fan of something more flashy/modern.
This made me chuckle, I'm definitely going to quote this the next time our K8S cluster has issues
After I upgraded to a 10GbE ethernet card in my previous router, my card didn't work correctly with FreeBSD-based stuff anymore. I changed to ClearOS and that was actually comparably easy to Pfsense...maybe even easier? I recommend checking that one out.
Beyond getting support for devices completely absent on freebsd, quality of drivers, bugs much more rapidly squashed, and general misc features absent on the bsd side like NBASE-T.
I use Linux for my router now because my server is NixOS, so I was able to consolidate my router into my server and turn off a machine (and thus save a little power), and I have so thoroughly drunk the Kool-aid for NixOS that I kind of want to put it everywhere. I run the latest kernel and I update daily, so I think most bugfixes (and hopefully security updates) will manifest quick enough.
Virtualization means you now have multiple layers of drivers and privileged code in the mix to add and amplify bugs, it can and should work but if you are doing this in the name of stability that is a bit curious.
The reason Netflix can do what they do is they have good relationship with their HW vendors, NVIDIA(Mellanox) and Chelsio. If they were on Linux, they'd need the same level of support.
Version control is in the GUI, you can adapt for your needs the number of changes you need. automatic config.xml backup also possible.