docker-systemctl-replacement

Systemd service unit and systemd-nspawn support could be written in Go, too; From https://news.ycombinator.com/item?id=41270425 re: "MiniBox, ultra small busybox without uncommon options": > There's a pypi:SystemdUnitParser. > docker-systemctl-replacement > systemctl3.py parses and schedules processes defined in systemd unit files: https://github.com/gdraheim/docker-systemctl-replacement/blo... From a container2wasm issue about linux-wasm the other day: https://github.com/container2wasm/container2wasm/issues/550#... : > [ uutils/uucore, uutils/coreutils, uutils/procps, uutils/util-linux, findutils, diffutils, toybox (C), rustybox, ]

Same question about rustybox. Maybe they're helping with cosmos-de or coreutils or something. OpenWRT has procd instead of systemd, but it does source a library of shell functions and run [somewhat haphazard] /etc/init.d scripts instead of parsing systemd unit configuration files to eliminate shell scripting errors when spawning processes as root. https://westurner.github.io/hnlog/ Ctrl-F procd, busd (This re: bootloaders, multiple images, and boot integrity verification: https://news.ycombinator.com/item?id=41022352 ) Systemd is great for many applications. Alternatives to systemd: https://without-systemd.org/wiki/index_php/Alternatives_to_s... There are advantages to systemd unit files instead of scripts. Porting packages between distros is less work with unit files. Systemd respawns processes consistently and with standard retry/backo

I simply don't get the outrage/criticism against this part of systemd. Instead of having to play around with `start-stop-daemon` and whatnot, a simple service is just these days: ``` [Unit] Description=my app [Service] Restart=on-failure User=webservices Group=webservices ExecStart=/usr/local/bin/my-web-service [Install] WantedBy=multi-user.target ``` It couldn't really be any simpler. There's also https://github.com/gdraheim/docker-systemctl-replacement# for anyone who needs a "lighter" alternative for tests in Docker.

> Also check github for a bunch of repos that contain biolerplate code that is used in most deamons illustrating signal handling, forking, etc.[2] docker-systemctl-replacement is a (partial) reimplementation of systemd as one python script that can be run as the init process of a container that's helpful for understanding how systemd handles processes: https://github.com/gdraheim/docker-systemctl-replacement/blo... systemd is written in C: https://github.com/systemd/systemd > examples of how to write secure code awesome-safety-critical > Coding Guidelines https://github.com/stanislaw/awesome-safety-critical/blob/ma...