A command-line utility written in Go to sleep for a random period, then run another command line executable.
Typical usage would be to run puppet agent in onetime mode in cron to save resources – the random sleep will help to avoid thundering herd issues at the puppetmaster.
rndsleep --randmax=30 --command="puppet agent --no-daemonize --onetime"
would run puppet agent with a random timeout of 0-30s.
Can be compiled on all platforms that Go is available for. Download it from github.
Assuming you are using a modern shell you can also use this variation in cron:
sleep $((RANDOM % 30 )); puppet agent --noop --onetime --no-daemonizeThe % value in the expansion is the ceiling.