gitlab: Sync upstream configs from omnibus-gitlab 8-9-stable 5eb2711e

    Like 5e227fdb - pristine copy from omnibus-gitlab 8-9-stable 5eb2711e

    Changes are:

        - gitlab.yml.erb
          Add cron gitlab.yml configuration.

        - nginx.conf.erb
          Make the server names nginx hash size configurable

        - smtp_settings.rb.erb
          Set ActionMailer::Base.delivery_method to SMTP to make mail work

    The following files stay the same:

        - database.yml.erb
        - gitconfig.erb
        - gitlab-shell-config.yml.erb
        - nginx-gitlab-http.conf.erb
        - rack_attack.rb.erb
        - resque.yml.erb
        - unicorn.rb.erb

software/gitlab/template/gitlab.yml.erb

@@ -167,6 +167,16 @@ production: &base
     # Flag stuck CI builds as failed
     stuck_ci_builds_worker:
       cron: <%= @stuck_ci_builds_worker_cron %>
+    # Remove expired build artifacts
+    expire_build_artifacts_worker:
+      cron: <%= @expire_build_artifacts_worker_cron %>
+    # Periodically run 'git fsck' on all repositories. If started more than
+    # once per hour you will have concurrent 'git fsck' jobs.
+    repository_check_worker:
+      cron: <%= @repository_check_worker_cron %>
+    # Send admin emails once a week
+    admin_email_worker:
+      cron: <%= @admin_email_worker_cron %>
 
     # Remove outdated repository archives
     repository_archive_cache_worker:

software/gitlab/template/nginx.conf.erb

@@ -18,6 +18,8 @@ http {
   log_format gitlab_ci_access '<%= @gitlab_ci_access_log_format %>';
   log_format gitlab_mattermost_access '<%= @gitlab_mattermost_access_log_format %>';
 
+  server_names_hash_bucket_size <%= @server_names_hash_bucket_size %>;
+
   sendfile <%= @sendfile %>;
   tcp_nopush <%= @tcp_nopush %>;
   tcp_nodelay <%= @tcp_nodelay %>;

software/gitlab/template/smtp_settings.rb.erb

@@ -5,6 +5,7 @@
 if Rails.env.production?
   Gitlab::Application.config.action_mailer.delivery_method = :smtp
 
+  ActionMailer::Base.delivery_method = :smtp
   ActionMailer::Base.smtp_settings = {
     <% unless @smtp_authentication.nil? %>
     authentication: <%= @smtp_authentication.to_s.to_sym.inspect %>,