autossh-run

#!/bin/bash

if [ "$#" -eq 0 ]; then
  echo -e "\nNo parameters have been passed.\n"
  exit 1
fi

if [ ! -r /root/.ssh/id_rsa ]; then
  echo -e "\nWarning: There is no RSA key present in the image at "
  echo -e "the SSH default location '/root/.ssh/id_rsa'.\n"
  echo -e "Add or bind mount one or specify another in the config file.\n"
  echo -e "These are the available RSA keys at /root/.ssh :"
  ls -Al /root/.ssh/
  echo
fi

AUTOSSH_CONF_DIR="/etc/autossh.conf.d/"
AUTOSSH_CONF_FILE="/etc/ssh/ssh_config"

if [ ! -r ${AUTOSSH_CONF_FILE} ]; then
  echo -e "\nAutoSSH configuration file '${AUTOSSH_CONF_FILE}' does not exists."
  echo -e "Available AutoSSH config files are:\n"
  ls -Al ${AUTOSSH_DIR}
  exit 1
fi

# Build ssh_config by including AUTOSSH_CONF_DIR defined hosts.
echo "Building ${AUTOSSH_CONF_FILE} from files in ${AUTOSSH_CONF_DIR}..."
cat ${AUTOSSH_CONF_DIR}/* | tee -a ${AUTOSSH_CONF_FILE}

echo -e "\n${AUTOSSH_CONF_FILE} built from the following files:"
ls -Al ${AUTOSSH_CONF_DIR}
echo

exec autossh -vNF ${AUTOSSH_CONF_FILE} $@