make package work with newer puppetlabs-apt, add support for metric b…

…atch size, and update buffer limit default to current telegraf default (#63)

* make it work with newer puppetlabs-apt

* add support for metric batch size

* telegraf uses 10000 as default for metric_buffer_limit so puppet should probably do that as well

manifests/init.pp

@@ -38,6 +38,9 @@
 # [*round_interval*]
 #   Boolean. Rounds collection interval to 'interval'
 #
+# [*metric_batch_size*]
+#   Integer. Telegraf will limit each output batch to this size.
+#
 # [*metric_buffer_limit*]
 #   Integer. Cache metric_buffer_limit metrics for each output, and flush this
 #   buffer on a successful write.
@@ -98,6 +101,7 @@
   $omit_hostname          = $telegraf::params::omit_hostname,
   $interval               = $telegraf::params::interval,
   $round_interval         = $telegraf::params::round_interval,
+  $metric_batch_size      = $telegraf::params::metric_batch_size,
   $metric_buffer_limit    = $telegraf::params::metric_buffer_limit,
   $flush_buffer_when_full = $telegraf::params::flush_buffer_when_full,
   $collection_jitter      = $telegraf::params::collection_jitter,
@@ -134,6 +138,7 @@
   validate_bool($omit_hostname)
   validate_string($interval)
   validate_bool($round_interval)
+  validate_integer($metric_batch_size)
   validate_integer($metric_buffer_limit)
   validate_bool($flush_buffer_when_full)
   validate_string($collection_jitter)

manifests/params.pp

@@ -34,7 +34,8 @@
   $omit_hostname          = false
   $interval               = '10s'
   $round_interval         = true
-  $metric_buffer_limit    = '1000'
+  $metric_batch_size      = '1000'
+  $metric_buffer_limit    = '10000'
   $flush_buffer_when_full = true
   $collection_jitter      = '0s'
   $flush_interval         = '10s'

metadata.json

@@ -36,7 +36,7 @@
   ],
   "dependencies": [
     { "name": "puppetlabs-stdlib", "version_requirement": ">=4.10.0 < 5.0.0" },
-    { "name": "puppetlabs-apt", "version_requirement": ">= 2.0.0 < 3.0.0" }
+    { "name": "puppetlabs-apt", "version_requirement": ">= 2.0.0 < 5.0.0" }
   ],
   "requirements": [
     { "name": "puppet", "version_requirement": "> = 3.0.0 < 5.0.0" }

templates/telegraf.conf.erb

@@ -14,6 +14,7 @@
   omit_hostname = <%= @omit_hostname %>
   interval = "<%= @interval %>"
   round_interval = <%= @round_interval %>
+  metric_batch_size = <%= @metric_batch_size %>
   metric_buffer_limit = <%= @metric_buffer_limit %>
   flush_buffer_when_full = <%= @flush_buffer_when_full %>
   collection_jitter = "<%= @collection_jitter %>"