Merge branch 'mk-metrics-server-listen-address' into 'master'

Fix metrics server network address in scenario

See merge request gitlab-org/gitlab-qa!1018

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

@@ -14,15 +14,14 @@ module Gitlab
                 gitlab.release = release
                 gitlab.network = 'test'
                 gitlab.name = 'gitlab'
-                gitlab.ports = [
-                  "#{PUMA_METRICS_SERVER_PORT}:#{PUMA_METRICS_SERVER_PORT}",
-                  "#{SIDEKIQ_METRICS_SERVER_PORT}:#{SIDEKIQ_METRICS_SERVER_PORT}"
-                ]
+                gitlab.ports = [PUMA_METRICS_SERVER_PORT, SIDEKIQ_METRICS_SERVER_PORT]
                 gitlab.omnibus_configuration << <<~RUBY
                   puma['exporter_enabled'] = true
+                  puma['exporter_address'] = '0.0.0.0'
                   puma['exporter_port'] = #{PUMA_METRICS_SERVER_PORT}
                   sidekiq['metrics_enabled'] = true
+                  sidekiq['listen_address'] = '0.0.0.0'
                   sidekiq['listen_port'] = #{SIDEKIQ_METRICS_SERVER_PORT}
                 RUBY