Merge branch 'fix-telegraf-tags' into 'master'

Use telegraf to capture the number of files in /home

See merge request !353

roles/telegraf/templates/telegraf.conf.j2

@@ -119,6 +119,12 @@
   # Uncomment the following line if you do not need disk serial numbers.
   # skip_serial_number = true
 
+# Read metrics about the number of files in /home
+[[inputs.filecount]]
+  directories = ["/home"]
+  recursive = false
+  regular_only = false
+
 # Read metrics about memory usage
 [[inputs.mem]]
   # no configuration