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@tptacek: Was there any exploration of Gvisor before landing on the current implementation?

• hollerith 6y ago
  He wrote about gvisor here (July 2020): https://fly.io/blog/sandboxing-and-workload-isolation/ https://fly.io/blog/sandboxing-and-workload-isolation/ >As batshit as this plan is, it works surprisingly well; you can build gVisor and runsc, its container runtime, relatively easily. Once you have runsc installed, it will run Docker containers for you. After reading the code, I sort of couldn’t believe it was working as well as it did, or, if it was, that it was actually using the code I had read. But I scattered a bunch of panic calls across the codebase and, yup, that all that stuff is actually happening. It’s pretty amazing. >You are probably strictly better off with gVisor than you are with a tuned Docker configuration, and I like it a lot. The big downside is performance; you’ll be looking at a low-double-digits percentage hit, degrading with I/O load. Google runs this stuff at scale in GCE; you can probably get away with it too. If you’re running gVisor, you should brag about it, because, again, gVisor is pretty bananas.
  • anotherhue 6y ago
    Thank you!