Re:Avoiding Complexity with Systemd
by cesarb on Sunday June 27, 2021 @12:16PM
(#27652767)
> But system init is a hard, complex problem. [...] a bunch of bash scripts trying to do service restart, logging, dependency management and failing at it.
Playing devil's advocate: system init by itself is easy, just have a single script starting each daemon in sequence, like it was done in the distant past (IIRC, "init" started both the getty for each terminal, and ran a single startup script). It's the "service restart, logging, dependency management" part that's complicated. And unfortunately, since nowadays devices are often hot-pluggable, you can't really escape from the "dependency management" part.
Re:Avoiding Complexity with Systemd
by kaba0 on Sunday June 27, 2021 @12:29PM
(#27652910)
Dependency management is not only due to hot-pluggability, but inherent dependencies between different services. This is the same problem as with package managers and I would not necessarily say it is easy.
Playing devil's advocate: system init by itself is easy, just have a single script starting each daemon in sequence, like it was done in the distant past (IIRC, "init" started both the getty for each terminal, and ran a single startup script). It's the "service restart, logging, dependency management" part that's complicated. And unfortunately, since nowadays devices are often hot-pluggable, you can't really escape from the "dependency management" part.