ansible-roles/fluentd-client#4 Properly define the alarm for FluentD buffer

templates/fluentd_buffer.conf

-template: fluentd_buffer_files
-      on: fluentd_buffer.files
-    calc: $this
-   green: 15
-     red: 20
-   every: 10s
-    warn: $this > $green
-    crit: $this > $red
-    info: files in buffer
-      to: sysadmin
+ alarm: fluentd_buffer_files
+    on: fluentd_buffer.files
+    os: linux
+ hosts: *
+lookup: max -5s unaligned
+ units: files
+ green: 40
+   red: 60
+ every: 5s
+  warn: $this > $green
+  crit: $this > $red
+  info: files in buffer
+    to: sysadmin