lib/instana/config.rb in instana-1.3.1 vs lib/instana/config.rb in instana-1.3.2

@@ -1,17 +1,28 @@
 module Instana
   class Config
 
     def initialize
       @config = {}
+
       @config[:agent_host] = '127.0.0.1'
       @config[:agent_port] = 42699
-      @config[:metrics] = {}
+
+      # Global on/off switch for prebuilt environments
+      # Setting this to false will disable this gem
+      # from doing anything.
+      @config[:enabled] = true
+
+      # Enable/disable metrics globally or individually (default: all enabled)
+      @config[:metrics] = { :enabled => true }
       @config[:metrics][:gc]     = { :enabled => true }
       @config[:metrics][:memory] = { :enabled => true }
       @config[:metrics][:thread] = { :enabled => true }
 
+      # Enable/disable tracing (default: enabled)
+      @config[:tracing] = { :enabled => true }
+
       if ENV.key?('INSTANA_GEM_DEV')
         @config[:collector] = { :enabled => true, :interval => 3 }
       else
         @config[:collector] = { :enabled => true, :interval => 1 }
       end
@@ -34,9 +45,16 @@
       @config[key.to_sym]
     end
 
     def []=(key, value)
       @config[key.to_sym] = value
+
+      if key == :enabled
+        # Configuring global enable/disable flag, then set the
+        # appropriate children flags.
+        @config[:metrics][:enabled] = value
+        @config[:tracing][:enabled] = value
+      end
     end
   end
 end
 
 ::Instana.config = ::Instana::Config.new