add support for protocols plugin

Author: Tom Throckmorton

README.md

@@ -90,6 +90,7 @@ documentation for each plugin for configurable attributes.
 * `ping` (see [collectd::plugin::ping](#class-collectdpluginping) below)
 * `postgresql` (see [collectd::plugin::postgresql](#class-collectdpluginpostgresql) below)
 * `processes` (see [collectd::plugin:processes](#class-collectdpluginprocesses) below)
+* `protocols` (see [collectd::plugin:protocols](#class-collectdpluginprotocols) below)
 * `python` (see [collectd::plugin::python](#class-collectdpluginpython) below)
 * `redis` (see [collectd::plugin::redis](#class-collectdpluginredis) below)
 * `rrdcached` (see [collectd::plugin::rrdcached](#class-collectdpluginrrdcached) below)
@@ -647,6 +648,19 @@ class { 'collectd::plugin::processes':
   ],
 }
 ```
+####Class: `collectd::plugin::protocols`
+
+ * `values` is an array of `Protocol` names, `Protocol:ValueName` pairs, or a regex
+ * see `/proc/net/netstat` and `/proc/net/snmp` for a list of `Protocol` targets
+
+ See [collectd.conf documentation] (https://collectd.org/documentation/manpages/collectd.conf.5.shtml#plugin_protocols) for details
+
+```puppet
+class { 'collectd::plugin::protocols':
+  values => ['/^Tcp:*/', '/^Udp:*/', 'Icmp:InErrors' ],
+  ignoreselected => false,
+}
+```
 
 ####Class: `collectd::plugin::python`
 
@@ -977,4 +991,4 @@ This module shall not use unsupported configuration directives. Look at [templat
 
 Please make use of the search by branch/tags on the collectd github to see when a function has been first released.
 
-Reading the [collectd.conf.pod](https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod) file is good, validating the presence of the code in the .c files is even better.
+Reading the [collectd.conf.pod](https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod) file is good, validating the presence of the code in the .c files is even better.

manifests/plugin/protocols.pp

@@ -0,0 +1,19 @@
+# See http://collectd.org/documentation/manpages/collectd.conf.5.shtml#plugin_protocols
+class collectd::plugin::protocols (
+  $ensure           = present,
+  $ignoreselected   = false,
+  $values            = []
+) {
+
+  validate_array(
+    $values,
+  )
+  validate_bool(
+    $ignoreselected,
+  )
+
+  collectd::plugin {'protocols':
+    ensure  => $ensure,
+    content => template('collectd/plugin/protocols.conf.erb'),
+  }
+}

templates/plugin/protocols.conf.erb

@@ -0,0 +1,16 @@
+<% if @values -%>
+<Plugin "protocols">
+<% 
+if @values
+  @values.each do |value| 
+-%>
+  Value "<%= value %>"
+<%
+  end
+end
+-%>
+<% if @ignore_selected != nil -%>
+  IgnoreSelected <%= @ignore_selected %>
+<% end -%>
+</Plugin>
+<% end -%>