events {
    worker_connections  1024;
}

http {

  upstream docker-registry {
    server registry:5000;
  }

  map $upstream_http_docker_distribution_api_version $docker_distribution_api_version {
    '' 'registry/2.0';
  }

  server {
    listen 80;

    server_name example.com www.example.com;

    server_tokens off;

    location /.well-known/acme-challenge/ {
      root /var/www/certbot;
    }

    location / {
      return 301 https://example.com$request_uri;
    }
  }

  # UNCOMMENT THIS AFTER GENERATING SSL CERTIFICATES
#   server {
#     listen 443 ssl;
#     http2  on;
#     sendfile on;
#     server_name example.com;
#
#     ssl_certificate /etc/nginx/ssl/live/example.com/fullchain.pem;
#     ssl_certificate_key /etc/nginx/ssl/live/example.com/privkey.pem;
#
#     ssl_protocols TLSv1.1 TLSv1.2;
#     ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
#     ssl_prefer_server_ciphers on;
#     ssl_session_cache shared:SSL:10m;
#
#     client_max_body_size 0;
#
#     chunked_transfer_encoding on;
#
#     location ~* \.(eot|ttf|woff|woff2)$ {
#       add_header Access-Control-Allow-Origin "*";
#     }
#
#     # Docker Registry
#     location /v2/ {
#       # Simple requests
#       if ($request_method ~* "(GET|POST)") {
#         add_header "Access-Control-Allow-Origin"  "*";
#         add_header "Access-Control-Allow-Credentials" "true";
#       }
#
#       # Preflighted requests
#       if ($request_method = OPTIONS ) {
#         add_header "Access-Control-Allow-Origin"  "*";
#         add_header "Access-Control-Allow-Methods" "GET, POST, OPTIONS, HEAD";
#         add_header "Access-Control-Allow-Headers" "Authorization, Origin, X-Requested-With, Content-Type, Accept";
#         return 204;
#       }
#
#       # Do not allow connections from docker 1.5 and earlier
#       # docker pre-1.6.0 did not properly set the user agent on ping, catch "Go *" user agents
#       if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) {
#         return 404;
#       }
#
#       # To add basic authentication to v2 use auth_basic setting.
#       auth_basic "Registry realm";
#       auth_basic_user_file /etc/nginx/conf.d/nginx.htpasswd;
#
#       ## If $docker_distribution_api_version is empty, the header is not added.
#       ## See the map directive above where this variable is defined.
#       add_header 'Docker-Distribution-Api-Version' $docker_distribution_api_version always;
#
#       proxy_pass                          http://docker-registry;
#       proxy_set_header  Host              $http_host;   # required for docker client's sake
#       proxy_set_header  X-Real-IP         $remote_addr; # pass on real client's IP
#       proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
#       proxy_set_header  X-Forwarded-Proto $scheme;
#       proxy_read_timeout                  900;
#     }
#
#     # Registry UI
#     location ^~ /registry {
#       auth_basic "Registry realm";
#       auth_basic_user_file /etc/nginx/conf.d/nginx.htpasswd;
#
#       rewrite ^/registry/?(.*)$ /$1 break;
#
#       proxy_pass http://registry-ui;
#       sub_filter_once off;
#       sub_filter_types *;
#       sub_filter '"docker-registry-ui.css"' '"/registry/docker-registry-ui.css"';
#       sub_filter '"docker-registry-ui.js"' '"/registry/docker-registry-ui.js"';
#       sub_filter '"/favicon.ico"' '"/registry/favicon.ico"';
#     }
#
#     # Uptime kuma
#     location /uptime {
#        # Define upstream address
#       set $upstream_app uptime-kuma;
#       set $url_prefix uptime;
#       proxy_pass http://uptime-kuma:3001;
#
#       # Set proxy headers
#       proxy_set_header Host $host;
#       proxy_set_header X-Real-IP $remote_addr;
#       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#       proxy_set_header X-Forwarded-Proto $scheme;
#       proxy_set_header X-Forwarded-Protocol $scheme;
#       proxy_set_header X-Forwarded-Host $http_host;
#       proxy_http_version 1.1;
#       proxy_set_header Upgrade $http_upgrade;
#       proxy_set_header Connection "upgrade";
#       proxy_buffering off;
#
#       # Redirect location headers
#       proxy_redirect ^ /$url_prefix;
#       proxy_redirect /dashboard /$url_prefix/dashboard;
#
#       # Remove URL prefix to pass to the app
#       rewrite ^/uptime/?(.*)$ /$1 break;
#
#       # Sub filters to replace hardcoded paths
#       proxy_set_header Accept-Encoding "";
#       sub_filter_once off;
#       sub_filter_types *;
#       sub_filter '/assets/' '/$url_prefix/assets/';
#       sub_filter '"assets/' '"$url_prefix/assets/';
#       sub_filter '/dashboard' '/$url_prefix/dashboard';
#       sub_filter '"/socket.io"' '"/$url_prefix/socket.io"';
#
#       sub_filter '"/icon.svg"' '"/$url_prefix/icon.svg"';
#       sub_filter '"/favicon.ico"' '"/$url_prefix/favicon.ico"';
#       sub_filter '"/manifest.json"' '"/$url_prefix/manifest.json"';
#     }
#   }
}