introduced variable gitlab.upload_size_max

defaults/main.yml

@@ -22,3 +22,4 @@ gitlab:
     allow_single_sign_on: ['oauth2_generic']
     auto_link_ldap_user: 'true'
     providers: []
+  upload_size_max: 128M

vars/main.yml

@@ -13,7 +13,7 @@ nginx:
     gitlab:
       backend: "http://internal-gitlab"
       custom:
-      - client_max_body_size 128M
+      - "client_max_body_size {{ gitlab.upload_size_max }}"
     "gitlab-pages":
       listen:
         ssl_port: 1443