cmon (Cron Monitor?) ==== Come on. I'm bored of installing God or Bluepill. I just want a simple command line interface for checking the state of something. I want to define my expectations in RSpec output_from("ruby script/delayed_job status")\ .should_not include("no instances running") I want to be able to execute this simply on the command line $ cd /path/to/my/project $ cmon monitoring/delayed_job.cmon I want to run this on cron, and have IT email me when things go wrong # monitor this once an hour # and email me if its down MAILTO=my.email@example.com 0 * * * * cd /path/to/my/project && cmon monitoring/delayed_job.cmon And maybe, if it goes wrong, I want it to restart it for me 0 * * * * cd /path/to/my/project && cmon monitoring/delayed_job.cmon || ruby script/delayed_job restart C'mon ==== cmon (pronounced "come on") is a simple ruby library that uses rspec defining expectations It says - "if there's anything I can rely upon being up all the time, then its crontab" - "let's use crontabs built in emailing to enable notifications" - "let's return posix exit codes, so we can use bash's logical operators to chain commands, and responses together