#!/bin/bash

if [ -z "$1" ]; then
  echo "$0 <host>"
  exit 1
fi

short="$1"
ssh_host=$(ssh -G "$short" | grep "^hostname " | awk '{ print($2) }' )
ssh_port=$(ssh -G "$short" | grep "^port " | awk '{ print($2) }' )
known_hosts_file=$(ssh -G "$short" | grep "^userknownhostsfile " | awk '{ print($2) }' )
known_hosts_file=${known_hosts_file/#\~/$HOME}

cd "${BASH_SOURCE%/*}"
source common/utils.sh
ansible_variable__get host_name "$short" || exit 1
ansible_variable__get host_domain "$short" || exit 1


for name in "$short" "$ssh_host" "$ssh_host:$ssh_port" "[$ssh_host]:$ssh_port" "$host_name" "$host_name.$host_domain"; do
  ssh-keygen -f "$known_hosts_file" -R "$name"
done

exit 0