Just an idea...

gorouter.job

Job.describe("gorouter") do |job|
  job.command = "bin/router -c /var/vcap/jobs/gorouter/config/gorouter.yml"

  job.templates << "templates/gorouter.yml.erb",          "config/gorouter.yml"
  job.templates << "templates/logrotate.conf.erb",        "config/logrotate.conf"
  job.templates << "templates/syslog_forwarder.conf.erb", "config/syslog_forwarder.conf"

  freq_min = job.properties.router && job.properties.router.logrotate && job.properties.router.logrotate.freq_min || 5

  job.cron "*/#{freq_min} * * * * test -x /usr/sbin/logrotate && /usr/sbin/logrotate #{job.job_root}/config/logrotate.conf >> #{job.log_root}/gorouter_logrotate_cron.log 2>&1"

  job.additional_packages << "common"
  job.additional_packages << "syslog_aggregator"

  job.dependencies << "golang"
end