add max_memory attribute to allow configuration of the memory consumption of the collector

attributes/default.rb

@@ -56,6 +56,8 @@ default['sumologic']['json_template'] = nil
 # template name from a custom sumo.conf configuration cookbook.
 default['sumologic']['conf_template'] = nil
 
+default['sumologic']['max_memory'] = 128
+
 default['sumologic']['use_proxy'] = false
 default['sumologic']['proxy'] = {
   'host' => nil,

templates/default/wrapper.conf.erb

@@ -71,7 +71,7 @@ wrapper.java.additional.2=-server
 wrapper.java.initmemory=64
 
 # Maximum Java Heap Size (in MB)
-wrapper.java.maxmemory=128
+wrapper.java.maxmemory=<%= node['sumologic']['max_memory'] %>
 
 # Proxy server configuration
 wrapper.java.additional.1=-XX:+UseParallelGC