from the Boot-him?-I-just-met-him! dept.
"Having had several issues with systemd, and really not liking the philosophy behind it, I am looking into alternatives. I really prefer something that follows the Unix philosophy of using small, focused, and independent tools, with a clear interface. Unfortunately, my favourite distro, Arch Linux, is very much pro-systemd, and a discussion of alternatives is liable to get you banned for a month from their forums. There is an effort to support openrc, but it is still in its infancy and without much support.
So, what are the alternatives, besides Gentoo? Preferably binary... I'd rather have something like arch, with quick updates, cutting edge, but I've already used a lot in the past Mandrake, RedHat, SourceMage, Debian, Kubuntu, and so on, so the package format or the package management differences don't scare me."
[ED Note: I'm imagining FreeBSD sitting in the room with the all the Linux distros he mentioned being utterly ignored like Canada in Hetalia.]
"A very public and sometimes acrimonious dispute in the Debian ecosystem about upstart versus systemd has been settled in favour of systemd. Some go as far as to brand it a new era after the Linux civil war [Beware popups].
We also had an asksoylentnews question on what the fuzz was all about. But what can upstart contribute to systemd now the war is over, or will it simply be a technology that we remember fondly, but do not see any more in a few years time?"
Klara Systems has an article with a deep dive into the origins of FreeBSD jails. These ideas have been around for many decades and taken form in several stages and finally became part of FreeBSD over 20 years ago. FreeBSD jails share the main system's kernel and are therefore a relatively light weight means for userspace isolation, compared to "containers". Within the jail, the environment appears as a normal system and processes within the jail can not see upward into the host or laterally into other jails.
In the late 1990s, [Poul-Henning] Kamp was contacted by a man from South Carolina named Derrick T. Woolworth. Woolworth had a problem and was looking for a solution. He ran a web hosting company named R&D Associates Inc and he “had this idea for running multiple different versions of Apache and MySQL on the same server”. Woolworth “complained about the fact that different customers in his webhotel needed different versions of apache, mysql, perl etc, and that this forced him to run many machines, each almost idle, just for these different software loads.”
Woolworth offered to pay for the development of such a feature. “The deal was that he would pay for the development and then after one year I would commit them to FreeBSD.” With that Jails were born. After Woolworth’s year of exclusivity expired, Jails were included in FreeBSD 4.