registry

upstream registry-upstream {
  server registry:5000;
}

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

server {
  listen 8443 ssl http2;
  server_name registry.example.com;

  keepalive_timeout 10m;

  ssl on;
  ssl_dhparam /run/secrets/dhparam.pem;
  ssl_certificate /run/secrets/registry.example.com.fullchain;
  ssl_certificate_key /run/secrets/registry.example.com.privkey;

  ssl_session_timeout 5m;

  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 / {

    auth_basic "Registry realm";
    auth_basic_user_file /run/secrets/registry_htpasswd;

    add_header 'Docker-Distribution-Api-Version' $docker_distribution_api_version always;

    proxy_redirect off;
    proxy_pass http://registry-upstream;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_read_timeout 900;
    proxy_buffering on;
  }

}