out_slack.rb in fluent-plugin-slack-0.5.3

- old
+ new

@@ -16,10 +16,11 @@
     config_param :username,             :string, default: 'fluentd'
     config_param :color,                :string, default: 'good'
     config_param :icon_emoji,           :string, default: nil
     config_param :icon_url,             :string, default: nil
     config_param :auto_channels_create, :bool,   default: false
+    config_param :https_proxy,          :string, default: nil
 
     config_param :channel,              :string
     config_param :channel_keys,         default: nil do |val|
       val.split(',')
     end
@@ -69,9 +70,13 @@
       else
         raise Fluent::ConfigError.new("Either of `webhook_url` or `token` is required")
       end
       @slack.log = log
       @slack.debug_dev = log.out if log.level <= Fluent::Log::LEVEL_TRACE
+
+      if @https_proxy
+        @slack.https_proxy = @https_proxy
+      end
 
       begin
         @message % (['1'] * @message_keys.length)
       rescue ArgumentError
         raise Fluent::ConfigError, "string specifier '%s' for `message`  and `message_keys` specification mismatch"