gitlab: Slapos'ify / adjust nginx config updates

- there is a section for gitlab pages, which we stub-out;

- there is no longer a need to add /raw/... handling to nginx - as
  now nginx is just an SSL terminator for gitlab-workhorse, all URL
  handling is done inside gitlab-workhorse and is dealt with ok by our
  patches.

- as now nginx does not directly connect to unicorn, there is no need to
  pass unicorn section to nginx's template.

/cc @kazuhiko, @jerome

software/gitlab/instance-gitlab.cfg.in

@@ -241,7 +241,6 @@ context-extra =
     section nginx                   nginx
     section gitlab_work             gitlab-work
     section gitlab_workhorse        gitlab-workhorse
-    section unicorn                 unicorn
 
 [rack_attack.rb]
 <= gitlab-etc-template

software/gitlab/software.cfg

@@ -247,7 +247,7 @@ md5sum  = 97b7f5654bc280542ee348cb6fa60893
 
 [instance-gitlab.cfg.in]
 <= download-file
-md5sum  = dfd2b14f846eda999fe9d12108d513b4
+md5sum  = 293b45fc69562c057819e3a876acaa54
 
 [macrolib.cfg.in]
 <= download-file
@@ -255,11 +255,11 @@ md5sum  = a56a44e96f65f5ed20211bb6a54279f4
 
 [nginx-gitlab-http.conf.in]
 <= download-template
-md5sum  = 590da2b00cd198c7bc261c3d893bc199
+md5sum  = 3b494fe8425a12e4a7fd3a9bb17f88f8
 
 [nginx.conf.in]
 <= download-template
-md5sum  = f1a6e2bce3f28a2243fed49d1e1601df
+md5sum  = dc16257d49d1fc1ae6e7d10865898201
 
 [rack_attack.rb.in]
 <= download-template

software/gitlab/template/nginx-gitlab-http.conf.in

 {{ autogenerated }}
 # see:
 # https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-cookbooks/gitlab/templates/default/nginx-gitlab-http.conf.erb
-# (last updated for omnibus-gitlab 8.2.3+ce.0-0-g8eda093)
+# (last updated for omnibus-gitlab 8.4.4+ce.0-0-g1680742)
 
 {% from 'macrolib.cfg.in' import cfg, cfg_bool, cfg_https, fqdn  with context %}
 
@@ -128,13 +128,6 @@ server {
     proxy_pass http://gitlab-workhorse;
   }
 
-  # access to raw blobs -> @gitlab-workhorse
-  location ~ ^/[\w\.-]+/[\w\.-]+/raw/ {
-    client_max_body_size 0;
-    error_page 418 = @gitlab-workhorse;
-    return 418;
-  }
-
   {# we don't support custom nginx configs
   <%= @custom_gitlab_server_config %>
   #}

software/gitlab/template/nginx.conf.in

@@ -2,7 +2,7 @@
 # see:
 # https://gitlab.com/gitlab-org/gitlab-ce/blob/master/lib/support/nginx/gitlab-ssl
 # https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-cookbooks/gitlab/templates/default/nginx.conf.erb
-# (last updated for omnibus-gitlab 8.2.3+ce.0-0-g8eda093)
+# (last updated for omnibus-gitlab 8.4.4+ce.0-0-g1680742)
 
 {% from 'macrolib.cfg.in' import cfg  with context %}
 
@@ -43,13 +43,9 @@ http {
 
   include {{ nginx_gitlab_http_conf }};
 
-  {# we don't need: ci, mattermost
+  {# we don't need: ci, pages, mattermost
   include <%= @gitlab_ci_http_config %>
-
-  <% if @gitlab_pages_http_config %>
   include <%= @gitlab_pages_http_config %>;
-  <% end %>
-
   include <%= @gitlab_mattermost_http_config %>
   #}
 }