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

Fix telegraf tags

See merge request !352

roles/telegraf/tasks/main.yml

@@ -59,5 +59,6 @@
     - "restart telegraf"
   become: true
   become_user: root
-
+  tags:
+    - configuration
 

roles/telegraf/templates/telegraf.conf.j2

@@ -38,6 +38,10 @@
   # Override default hostname, if empty use os.Hostname()
   hostname = ""
 
+  ## Maximum number of unwritten metrics per output.  Increasing this value
+  ## allows for longer periods of output downtime without dropping metrics at the
+  ## cost of higher maximum memory usage.
+  metric_buffer_limit = 15000
 
 ###############################################################################
 #                                  OUTPUTS                                    #