#!/bin/bash

set -e
set -o xtrace

# CONTEXT: HOST prior to IMAGE BUILD as SCRIPT USER
# PURPOSE: creates the SSH key on the host if it doesn't exist.  Then this copies the keys over to a staging area where
# they will be duplicated in the guest VM.
# This process allows the host to log into the guest but more importantly the guest phones home to get the trove
# source

source $_LIB/die

HOST_USERNAME=${HOST_USERNAME:-"ubuntu"}
SSH_DIR=${SSH_DIR:-"/home/${HOST_USERNAME}/.ssh"}

[ -n "${TMP_HOOKS_PATH}" ] || die "Temp hook path not set"

# copy files over the "staging" area for the guest image (they'll later be put in the correct location by the guest user
# not these keys should not be overridden otherwise a) you won't be able to ssh in and b) the guest won't be able to
# rsync the files
if [ -f ${SSH_DIR}/id_rsa ]; then
   dd if=${SSH_DIR}/authorized_keys of=${TMP_HOOKS_PATH}/ssh-authorized-keys
   dd if=${SSH_DIR}/id_rsa of=${TMP_HOOKS_PATH}/ssh-id_rsa
   dd if=${SSH_DIR}/id_rsa.pub of=${TMP_HOOKS_PATH}/ssh-id_rsa.pub
else
    die "SSH Authorized Keys file must exist along with pub and private key"
fi