Set primary / secondary node name explicitly

lib/gitlab/qa/component/gitlab.rb

@@ -13,7 +13,7 @@ module Gitlab
         # rubocop:disable Style/Semicolon
         attr_reader :release, :docker
-        attr_accessor :volumes, :network, :environment
+        attr_accessor :volumes, :network, :environment, :name
         def_delegators :release, :tag, :image, :edition

lib/gitlab/qa/scenario/test/integration/geo.rb

@@ -17,6 +17,7 @@ module Gitlab
               Component::Gitlab.perform do |primary|
                 primary.release = release
+                primary.name = 'gitlab-primary'
                 primary.network = 'geo'
                 primary.omnibus_config = <<~OMNIBUS
                   geo_primary_role['enable'] = true;
@@ -30,6 +31,7 @@ module Gitlab
                 primary.instance do
                   Component::Gitlab.perform do |secondary|
                     secondary.release = release
+                    secondary.name = 'gitlab-secondary'
                     secondary.network = 'geo'
                     secondary.omnibus_config = <<~OMNIBUS
                       geo_secondary_role['enable'] = true;