So I'm running a shared platform with about 80 apps on it.
Out of that 80 or so apps a few have crontab access which is managed through group membership.
I need to design a system that will once an hour through a root cronjob, scan the project space of those that have crontab access (Belong to bppcron group) and within that project space I'm looking for /proj/<project name>/www/.crontab-admin/crontab-DEV (Or crontab-QA Or crontab-PROD). From there i run a diff -q | wc -l against an if logic checking for 1 or 0. If it's different run crontab -u <user> crontab-DEV (Or Crontab-QA, crontab-PROD)
This root cronjob will be run locally on each host. This logic makes sense for non-load balanced env's, but how would I be able to do this in a load balanced environment? I have two QA servers and four Production servers.