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

Update telegraf input.disk config to exclude nfs4

See merge request !368

roles/telegraf/templates/telegraf.conf.j2

@@ -99,13 +99,13 @@
 
 # Read metrics about disk usage by mount point
 [[inputs.disk]]
-  {% if 'ComputeNodes' in group_names %}
+{% if 'ComputeNodes' in group_names %}
   interval = "60s"
-  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "overlay", "aufs", "squashfs", "nfsv4"]
-  {% endif %}
-  {% if 'LoginNodes' in group_names %}
+  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "overlay", "aufs", "squashfs", "nfsv4", "nfs4"]
+{% endif %}
+{% if 'LoginNodes' in group_names %}
   interval = "60s"
-  {% endif %}
+{% endif %}
   # By default, telegraf gather stats for all mountpoints.
   # Setting mountpoints will restrict the stats to the specified mountpoints.
   # mount_points=["/"]