this post was submitted on 09 Aug 2023
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There are scripts for making a jail around single apps but yeah I typically don't use them that way. Lxc I very often install an app I want to test out and toss once I want to dedicate compile time to it.
Yeah, I'd want a jail dockerfile system too, I just usually do them manually. Still, a way to run dockerfiles to build jails would be epic if you could make it work.
I used gentoo for a decade, I just can't afford the downtime if my workstation goes down, so it's debian with lxc workspaces for a while, but gentoo actually runs well under lxc.
Mostly every app expects its own distro, either debian or centos, few actually are agnostic, so getting them to run on gentoo was always more of a challenge than on raw debian/Ubuntu.
I'm actually the opposite. Run gentoo as my host and toss up a debian lxc if needed. Worst case scenario im running just the kernel and everything else from a container (actually how i typically run when rebuilding a system from start).
I've never run into a situation where an app "couldn't" run in Gentoo. It's just that I've had cases where an app is build for a 8 year old LTS of debian with such old dependencies it wouldn't be worth my time building them all when i can just pull up a container with that super old build. The nice thing is that all the vulnerabilities that old Debian had is now in a container and less of a target.
I swear i must be lucky cuz i do often hear of gentpo fatigue but I've been running it since the project started and never had issues outside the things they legitimately broke.
Back around, I want to say more than a decade ago, they changed some stuff in the portage tree and everything broke hard for me. Then I rebuilt and a few weeks later it broke again. This was when maintainers changed and they were pretty angry for some reason.
I bailed because I couldn't build, I don't remember all the details, it just seemed like they didn't care, and I suddenly got really busy.
I'd like to go back, but debian with lxc children has been so good to me, by now there's nothing else to really learn (though of course I hate systemd), I'm using the same system as on half my servers, then freebsd for the others.
I've been using gentoo lxc to put my toes back in the water, just upgraded my workstation to a monster, might switch back, I suppose the main thing stopping me is how well debian has treated me for the last while, even most ubuntu targeted software runs out of the box.
Also, I'm really terrified of changes that lead to build breaks, any time I have to rebuild is a problem, I need my main workstation to control everything, so it's a place I'm willing to lose some customization for more stability nowadays.
Ironically my only major applications are basically konsole, Firefox, dolphin and python for the pyqt5 gui apps i wrote like a video player and some other stuff, though getting back into lutris would be nice too.
I've been debating hoping off gentoo because my system is so old. Like a decade old. A majority of the stuff compiles fine but Firefox and LibreOffice I just use the binary builds via Flatpak. Its funny cuz i still remember the days where building the kernel took a few hours.