Fcron Is the Best Cron

• systemd

  510 12,457 10.0 C

  The systemd System and Service Manager

  

there's an existing bug in systemd that causes timers to _never_ run

it's been open for 5 years

if you have a large enough cluster you'll have affected nodes for sure

https://github.com/systemd/systemd/issues/6036

• dron

  2 55 6.7 Python

  What if cron and systemd had a baby?

I was annoyed by cron/fcron limitations and figured systemd is the way go because of its flexibility and power, but also was annoyed about manually managing tons of unit files. So I wrote a tool with a config that looks kinda like a crontab, but uses systemd (or launchd on mac) behind the scenes: https://github.com/karlicoss/dron#what-does-it-do

E.g. a simplest job definition looks like this

  job(every(mins=10), 'ping https://beepb00p.xyz', unit_name='ping-beepb00p')

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• beepb00p

  3 79 8.1 Python

  My blog!

I was annoyed by cron/fcron limitations and figured systemd is the way go because of its flexibility and power, but also was annoyed about manually managing tons of unit files. So I wrote a tool with a config that looks kinda like a crontab, but uses systemd (or launchd on mac) behind the scenes: https://github.com/karlicoss/dron#what-does-it-do

E.g. a simplest job definition looks like this

  job(every(mins=10), 'ping https://beepb00p.xyz', unit_name='ping-beepb00p')

• supercronic

  5 1,716 5.1 Go

  Cron for containers

  

For use inside containers, a nice Cron is Superchronic:

https://github.com/aptible/supercronic

Beware! It explicitly does not run jobs in an empty environment - it's not a great candidate for system level Cron. But for its intended usecase it is very nice.

• cron

  2 8 5.8 Nim

  Library to ease writing cron-like programs (by c-blake)

Maybe instead of demons with config files that have more and more bespoke syntax, it's better to go all the way to a library that provides the basic loop functionality? Like https://github.com/c-blake/cron or something similar in C or whatever.

Maybe not, but it's an idea worth considering...

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