node is hostname

docker/x2go/xfce-debian/authorized_keys.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+[ -n "${DEBUG}" ] && set -x
+set -eu
+
+user=${1:-${USER}}
+domain=${USER/*@}
+
+[ -f "/home/${user}/.ssh/authorized_keys" ] \
+ && authorized_keys=$(cat "/home/${user}/.ssh/authorized_keys" 2>/dev/null)
+if [ -n "${authorized_keys:-}" ]; then
+  echo "${authorized_keys:-}"
+elif [ -n "${SSH_AUTHORIZED_KEYS:-}" ]; then
+    for host in ${SSH_AUTHORIZED_KEYS:-}; do
+      wget -qO - "${host}" 2>/dev/null && break
+    done
+elif [ -n "${user}" ]; then
+  # if no domain
+  if [ "${domain}" = "${user}" ]; then
+    for host in ${SSH_PUBLIC_HOSTS:-}; do
+      wget -qO - "https://${host}/${user}.keys" 2>/dev/null && break
+    done
+  else
+    exit 1
+  fi
+fi