$(for user in ${syncthing_users:-}; do cat <<EOF
upstream syncthing_${user} {
  server unix:///var/run/syncthing/${user}/syncthing.sock;
}

EOF
done)

server {
  listen 443      ssl default_server;
  listen [::]:443 ssl default_server;
  http2 on;

  ssl_certificate      ${syncthing_https_cert};
  ssl_certificate_key  ${syncthing_https_key};

  add_header Strict-Transport-Security "max-age=63072000" always;

  auth_gss_keytab ${nginx_keytab};
  auth_gss_allow_basic_fallback off;

$(for user in ${syncthing_users:-}; do cat <<EOF
  location /${user}/ {
    proxy_http_version 1.1;
    proxy_set_header Connection "";
    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_read_timeout 600s;
    proxy_send_timeout 600s;
    proxy_pass http://syncthing_${user}/;
    auth_gss on;
    auth_gss_authorized_principal ${user};
  }
EOF
done)
}