implemented job metrics

README.md

@@ -17,6 +17,15 @@ defaults:
     weekday: "{{ range(6)|list }}"
     hour: "{{ range(1, 22)|list }}"
     minute: "{{ range(5, 50)|list }}"
+
+# Enable metrics for all jobs with node-exporter:
+# * cron_job_last_run_seconds
+# * cron_job_exit_code
+# * cron_job_duration_seconds
+# * cron_job_next_run_seconds
+# * cron_job_last_success_seconds
+# Label "name" is set to the job name (key in jobs dict)
+enable_monitoring: True
 ```
 
 **jobconfig**