Update telegraf config to parse /proc/net/softnet_stat details

Hi Chris,

Can you please pick a node to test this new config on and tell me how it goes?

roles/telegraf/templates/telegraf.conf.j2

@@ -157,6 +157,14 @@
   timeout="4s"
   interval="300s"
 
+[[inputs.exec]]
+  commands = [
+  "awk -v -f /opt/telegraf/bin/telegraf_softnet_stats.awk /proc/net/softnet_stat"
+  ]
+  data_format = "influx"
+  timeout="4s"
+  interval="600s"
+
 # Both Slurm ManagementNodes will log sdiag stats, but no Compute or Login nodes will
 {% if 'ManagementNodes' in group_names %}
 [[inputs.exec]]