TT#37257 Get ssh pub key from mgmt node

We need it to be able to connect from mgmt node to installed one
to run 'ngcp-initial-configuration'.

Change-Id: Id907094ba2eae32c05ad8d42d8a504e498a57ad4

templates/scripts/includes/deployment.sh

@@ -1452,6 +1452,18 @@ EOT
   fi
 fi
 
+if [[ -n "${MANAGEMENT_IP}" ]] && "${RETRIEVE_MGMT_CONFIG}" ; then
+  echo "Retrieving public key from management node"
+  cat > "${TARGET}/tmp/retrieve_authorized_keys.sh" << EOT
+#!/bin/bash
+set -e
+mkdir -p /root/.ssh
+wget --timeout=30 -O /root/.ssh/authorized_keys "http://${MANAGEMENT_IP}:3000/ssh/id_rsa_pub"
+chmod 600 /root/.ssh/authorized_keys
+EOT
+  grml-chroot "${TARGET}" /bin/bash /tmp/retrieve_authorized_keys.sh
+fi
+
 case "$DEBIAN_RELEASE" in
   stretch)
     set_custom_grub_boot_options