Add some munin tower monitoring tasks

tools/scripts/tower_jobs

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+case $1 in
+   config)
+        cat <<'EOM'
+multigraph jobs
+graph_title Running Jobs breakdown
+graph_vlabel job count
+graph_category tower
+running.label Running jobs
+running.type DERIVE
+waiting.label Waiting jobs
+waiting.type DERIVE
+pending.label Pending jobs
+pending.type DERIVE
+EOM
+        exit 0;;
+esac
+
+printf "running.value "
+awx-manage stats --stat jobs_running
+
+printf "waiting.value "
+awx-manage stats --stat jobs_waiting
+
+printf "pending.value "
+awx-manage stats --stat jobs_pending