Make support.gitlab.com constant (EE::CUSTOMER_SUPPORT_URL)

ee/app/views/ci_minutes_usage_mailer/notify.html.haml

@@ -3,4 +3,4 @@
 %p
   Click #{link_to('here', EE::SUBSCRIPTIONS_PLANS_URL)} to purchase more minutes.
 %p
-  If you need assistance, please contact #{link_to('GitLab support', 'https://support.gitlab.com')}.
+  If you need assistance, please contact #{link_to('GitLab support', EE::CUSTOMER_SUPPORT_URL)}.

ee/app/views/ci_minutes_usage_mailer/notify.text.erb

@@ -2,4 +2,4 @@ This is an automated notification to let you know that your CI Runner Minutes qu
 
 Please visit <%= EE::SUBSCRIPTIONS_PLANS_URL %> to purchase more minutes.
 
-If you need assistance, please contact GitLab support (https://support.gitlab.com).
+If you need assistance, please contact GitLab support (<%= EE::CUSTOMER_SUPPORT_URL %>).

ee/app/views/ci_minutes_usage_mailer/notify_limit.html.haml

@@ -3,4 +3,4 @@
 %p
   Click #{link_to('here', EE::SUBSCRIPTIONS_PLANS_URL)} to purchase more minutes.
 %p
-  If you need assistance, please contact #{link_to('GitLab support', 'https://support.gitlab.com')}.
+  If you need assistance, please contact #{link_to('GitLab support', EE::CUSTOMER_SUPPORT_URL)}.

ee/app/views/ci_minutes_usage_mailer/notify_limit.text.erb

@@ -3,4 +3,4 @@ quota for "<%= @namespace_name %>" is below <%= @percentage_of_available_mins %>
 
 Please visit <%= EE::SUBSCRIPTIONS_PLANS_URL %> to purchase more minutes.
 
-If you need assistance, please contact GitLab support (https://support.gitlab.com).
+If you need assistance, please contact GitLab support (<%= EE::CUSTOMER_SUPPORT_URL %>).

ee/app/views/groups/billings/index.html.haml

@@ -11,6 +11,6 @@
 
 - if @group.actual_plan
   .center
-    - support_link = link_to s_("BillingPlans|Contact Support"), "https://support.gitlab.com"
+    - support_link = link_to s_("BillingPlans|Contact Support"), EE::CUSTOMER_SUPPORT_URL
 
     = s_("BillingPlans|If you would like to downgrade your plan please %{support_link}.").html_safe % { support_link: support_link }

ee/app/views/shared/billings/_billing_plans.html.haml

 - current_plan = subscription_plan_info(plans_data, namespace.actual_plan_name)
-- support_link = link_to s_("BillingPlans|Contact Support"), "https://support.gitlab.com"
+- support_link = link_to s_("BillingPlans|Contact Support"), EE::CUSTOMER_SUPPORT_URL
 
 - if current_plan
   = render 'shared/billings/billing_plan_header', namespace: namespace, plan: current_plan

ee/lib/ee.rb

@@ -4,4 +4,5 @@ module EE
   SUBSCRIPTIONS_URL = 'https://customers.gitlab.com'.freeze
   SUBSCRIPTIONS_PLANS_URL = "#{SUBSCRIPTIONS_URL}/plans".freeze
   SUBSCRIPTIONS_MORE_MINUTES_URL = "#{SUBSCRIPTIONS_URL}/buy_pipeline_minutes".freeze
+  CUSTOMER_SUPPORT_URL = 'https://support.gitlab.com'.freeze
 end

ee/spec/features/billings/billing_plans_spec.rb

@@ -100,7 +100,7 @@ describe 'Billing plan pages', :feature do
         page.within('.content') do
           expect(page).to have_link('Upgrade plan', href: external_upgrade_url(namespace, bronze_plan))
           expect(page).to have_content('downgrade your plan')
-          expect(page).to have_link('Contact Support', href: 'https://support.gitlab.com')
+          expect(page).to have_link('Contact Support', href: EE::CUSTOMER_SUPPORT_URL)
         end
       end
     end
@@ -126,7 +126,7 @@ describe 'Billing plan pages', :feature do
         page.within('.content') do
           expect(page).not_to have_link('Upgrade plan')
           expect(page).to have_content('downgrade your plan')
-          expect(page).to have_link('Contact Support', href: 'https://support.gitlab.com')
+          expect(page).to have_link('Contact Support', href: EE::CUSTOMER_SUPPORT_URL)
         end
       end
     end