Installing gVisor on Fedora...using apt

[Clancy508]

This is slightly cursed, but for what it's worth you can actually install gVisor on Fedora following the instructions for apt with the only modifications needed being:

1. You don't need any of the pre-requisite packages listed. Instead, you need to install apt (which Fedora packages for cross platform development) using [sudo] dnf install apt
2. apt fails to complete the install because the post install script doesn't get labelled by SELinux as an executable, so either re-label it or just delete it and run apt upgrade, you can always do the pretty minimal config manually.

The main advantage I see here is that it gets you proper key based verification using a public key distributed through multiple channels instead of just relying on a sha512 hash downloaded from the exact same server (ie better supply chain attack resilience), as well as updates with a simple one line command. For those who don't want to colour this far outside the lines, you can also configure apt to run in download only mode and extract it manually, which still gets you public key verification. Downside is obviously that Fedora isn't built with the expectation of apt being used to actually do any package management, although without further configuration this only configured the gVisor repo with no others, and the gVisor package is pretty simple in terms of how much it changes the host system.

[EtiennePerot]

Patches welcome to create an RPM package :)