Add app.yml options for slack channel, user, and emoji

lib/helpers/tasks.rb

@@ -87,9 +87,9 @@ def notify_slack(status_message)
     end
 
     notifier = Slack::Notifier.new settings.slack_webhook do
-      defaults channel: '#general',
-               username: 'puppet_webhook',
-               icon_emoji: ':ocean:',
+      defaults channel: settings.slack_channel,
+               username: settings.slack_user,
+               icon_emoji: settings.slack_emoji,
                http_options: http_options
     end
 

lib/puppet_webhook.rb

@@ -38,6 +38,9 @@ class PuppetWebhook < Sinatra::Base # rubocop:disable Style/Documentation
   set :use_mcollective, false unless settings.respond_to? :use_mcollective=
   set :discovery_timeout, false unless settings.respond_to? :discovery_timeout=
   set :slack_webhook, false unless settings.respond_to? :slack_webhook=
+  set :slack_channel, '#general' unless settings.respond_to? :slack_channel=
+  set :slack_user, 'puppet_webhook' unless settings.respond_to? :slack_user=
+  set :slack_emoji, ':ocean:' unless settings.respond_to? :slack_emoji=
   set :slack_proxy_url, nil unless settings.respond_to? :slack_proxy_url=
   set :default_branch, 'production' unless settings.respond_to? :default_branch=
   set :ignore_environments, [] unless settings.respond_to? :ignore_environments=