# GITLAB
# Maintainer: @randx

# CHUNKED TRANSFER
# It is a known issue that Git-over-HTTP requires chunked transfer encoding [0] which is not
# supported by Nginx < 1.3.9 [1]. As a result, pushing a large object with Git (i.e. a single large file)
# can lead to a 411 error. In theory you can get around this by tweaking this configuration file and either
# - installing an old version of Nginx with the chunkin module [2] compiled in, or
# - using a newer version of Nginx.
#
# At the time of writing we do not know if either of these theoretical solutions works. As a workaround
# users can use Git over SSH to push large files.
#
# [0] https://git.kernel.org/cgit/git/git.git/tree/Documentation/technical/http-protocol.txt#n99
# [1] https://github.com/agentzh/chunkin-nginx-module#status
# [2] https://github.com/agentzh/chunkin-nginx-module

upstream gitlab {
  server unix:/home/git/gitlab/tmp/sockets/gitlab.socket;
}

server {
  listen *:80 default_server;         # e.g., listen 192.168.1.1:80; In most cases *:80 is a good idea
  server_name {{YOUR_SERVER_FQDN}};     # e.g., server_name source.example.com;
  server_tokens off;     # don't show the version number, a security best practice
  root /dev/null;
  
  # Increase this if you want to upload large attachments
  # Or if you want to accept large git objects over http
  client_max_body_size {{NGINX_MAX_UPLOAD_SIZE}};

  # individual nginx logs for this gitlab vhost
  access_log  /var/log/nginx/gitlab_access.log;
  error_log   /var/log/nginx/gitlab_error.log;

  location {{GITLAB_RELATIVE_URL_ROOT}}/ {
    root /home/git/gitlab/public;
    # serve static files from defined root folder;.
    # @gitlab is a named location for the upstream fallback, see below
    try_files $uri $uri/index.html $uri.html @gitlab;
  }

  # if a file, which is not found in the root folder is requested,
  # then the proxy pass the request to the upsteam (gitlab unicorn)
  location @gitlab {
    # If you use https make sure you disable gzip compression 
    # to be safe against BREACH attack
    gzip off;

    proxy_read_timeout 300; # Some requests take more than 30 seconds.
    proxy_connect_timeout 300; # Some requests take more than 30 seconds.
    proxy_redirect     off;

    proxy_set_header   X-Forwarded-Proto $scheme;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;
    proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;

    proxy_pass http://gitlab;
  }

  # Enable gzip compression as per rails guide: http://guides.rubyonrails.org/asset_pipeline.html#gzip-compression
  location ~ ^{{GITLAB_RELATIVE_URL_ROOT}}/assets/(.*) {
    alias /home/git/gitlab/public/assets/$1;
    gzip_static on; # to serve pre-gzipped version
    expires max;
    add_header Cache-Control public;
  }

  error_page 502 /502.html;
}

server {
  listen *:443 default_server ssl;
  server_name {{YOUR_SERVER_FQDN}};
  server_tokens off;
  root /dev/null;

  ssl on;
  ssl_certificate {{SSL_CERTIFICATE_PATH}};
  ssl_certificate_key {{SSL_KEY_PATH}};
  ssl_protocols SSLv3 TLSv1 TLSv1.2;

  ssl_ciphers 'ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4';

  ssl_prefer_server_ciphers on;
  ssl_session_cache  builtin:1000  shared:SSL:10m;

  ## Strong SSL Security
  ## https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html
  ssl_dhparam {{SSL_DHPARAM_PATH}};

  # Increase this if you want to upload large attachments
  # Or if you want to accept large git objects over http
  client_max_body_size {{NGINX_MAX_UPLOAD_SIZE}};

  # individual nginx logs for this gitlab vhost
  access_log  /var/log/nginx/gitlab_access.log;
  error_log   /var/log/nginx/gitlab_error.log;

  location {{GITLAB_RELATIVE_URL_ROOT}}/ {
    root /home/git/gitlab/public;
    # serve static files from defined root folder;.
    # @gitlab is a named location for the upstream fallback, see below
    try_files $uri $uri/index.html $uri.html @gitlab;
  }

  # if a file, which is not found in the root folder is requested,
  # then the proxy pass the request to the upsteam (gitlab unicorn)
  location @gitlab {
    # If you use https make sure you disable gzip compression 
    # to be safe against BREACH attack
    # gzip off;

    proxy_read_timeout 300; # Some requests take more than 30 seconds.
    proxy_connect_timeout 300; # Some requests take more than 30 seconds.
    proxy_redirect     off;

    proxy_set_header   X-Forwarded-Proto $scheme;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;
    proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;

    proxy_pass http://gitlab;
  }

  # Enable gzip compression as per rails guide: http://guides.rubyonrails.org/asset_pipeline.html#gzip-compression
  location ~ ^{{GITLAB_RELATIVE_URL_ROOT}}/assets/(.*) {
    alias /home/git/gitlab/public/assets/$1;
    gzip_static on; # to serve pre-gzipped version
    expires max;
    add_header Cache-Control public;
  }

  error_page 502 /502.html;
}