Make production settings fixture use Gitlab::CurrentSettings.current_application_settings

	small code formatting changes

db/fixtures/production/010_settings.rb

@@ -12,18 +12,15 @@ def save(settings, topic)
   end
 end
 
-envs = %w{ GITLAB_PROMETHEUS_METRICS_ENABLED GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN }
-
-if envs.any? {|env_name| ENV[env_name].present? }
-  settings = ApplicationSetting.current || ApplicationSetting.create_from_defaults
-  if ENV['GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN'].present?
-    settings.set_runners_registration_token(ENV['GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN'])
-    save(settings, 'Runner Registration Token')
-  end
+if ENV['GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN'].present?
+  settings = Gitlab::CurrentSettings.current_application_settings
+  settings.set_runners_registration_token(ENV['GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN'])
+  save(settings, 'Runner Registration Token')
+end
 
-  if ENV['GITLAB_PROMETHEUS_METRICS_ENABLED'].present?
-    value = Gitlab::Utils.to_boolean(ENV['GITLAB_PROMETHEUS_METRICS_ENABLED'])
-    settings.prometheus_metrics_enabled = value
-    save(settings, 'Prometheus metrics enabled flag')
-  end
+if ENV['GITLAB_PROMETHEUS_METRICS_ENABLED'].present?
+  settings = Gitlab::CurrentSettings.current_application_settings
+  value = Gitlab::Utils.to_boolean(ENV['GITLAB_PROMETHEUS_METRICS_ENABLED'])
+  settings.prometheus_metrics_enabled = value
+  save(settings, 'Prometheus metrics enabled flag')
 end

spec/db/production/settings_spec.rb

@@ -3,8 +3,8 @@ require 'rainbow/ext/string'
 
 describe 'seed production settings', lib: true do
   include StubENV
-  let(:settings_file) { File.join(__dir__, '../../../db/fixtures/production/010_settings.rb') }
-  let(:settings) { ApplicationSetting.current || ApplicationSetting.create_from_defaults }
+  let(:settings_file) { Rails.root.join('db/fixtures/production/010_settings.rb') }
+  let(:settings) { Gitlab::CurrentSettings.current_application_settings }
 
   context 'GITLAB_SHARED_RUNNERS_REGISTRATION_TOKEN is set in the environment' do
     before do

spec/lib/gitlab/health_checks/prometheus_text_format_spec.rb

@@ -4,10 +4,8 @@ describe Gitlab::HealthChecks::PrometheusTextFormat do
 
   describe '#marshal' do
     let(:sample_metrics) do
-      [
-        metric_class.new('metric1', 1),
-        metric_class.new('metric2', 2)
-      ]
+      [metric_class.new('metric1', 1),
+       metric_class.new('metric2', 2)]
     end
 
     it 'marshal to text with non repeating type definition' do
@@ -23,11 +21,9 @@ describe Gitlab::HealthChecks::PrometheusTextFormat do
 
     context 'metrics where name repeats' do
       let(:sample_metrics) do
-        [
-          metric_class.new('metric1', 1),
-          metric_class.new('metric1', 2),
-          metric_class.new('metric2', 3)
-        ]
+        [metric_class.new('metric1', 1),
+         metric_class.new('metric1', 2),
+         metric_class.new('metric2', 3)]
       end
 
       it 'marshal to text with non repeating type definition' do