bashscripts/remote_updater.sh

136 lines
2.8 KiB
Bash
Executable File

#!/usr/bin/env bash
# ==============================================================================
# DESCRIPTION
#
#
# ==============================================================================
#verify run as root or sudo
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root"
exit 1
fi
readonly OFFSET_OPTIONS=3
declare -a TARGETS
NUM_HOSTS=0
show_ssh_hosts () {
SSH_HOSTS_CONFIG_FILE="/root/.ssh/config"
if [ -f $SSH_HOSTS_CONFIG_FILE ]; then
TARGETS=($(cat $SSH_HOSTS_CONFIG_FILE | grep -E "^Host [^\*\*]" | sed "s/Host //"))
# get length of an array
NUM_HOSTS=${#TARGETS[@]}
for (( j=0; j<NUM_HOSTS; j++ ));
do
#printf "Current index %d with value %s\n" $j "${TARGETS[$j]}"
echo "$((j+$OFFSET_OPTIONS))) ${TARGETS[$j]}"
done
else
echo "NOTE: Config hosts file not found"
fi
}
#is_root () {
#echo "test root"
#echo "$(id -u)"
# return $(id -u)
#}
has_sudo() {
local prompt
prompt=$(sudo -nv 2>&1)
if [ $? -eq 0 ]; then
echo "has_sudo__pass_set"
elif echo $prompt | grep -q '^sudo:'; then
echo "has_sudo__needs_pass"
else
echo "no_sudo"
fi
}
elevate_cmd () {
local cmd=$@
HAS_SUDO=$(has_sudo)
case "$HAS_SUDO" in
has_sudo__pass_set)
sudo $cmd
;;
has_sudo__needs_pass)
echo "Please supply sudo password for the following command: sudo $cmd"
sudo $cmd
;;
*)
echo "Please supply root password for the following command: su -c \"$cmd\""
su -c "$cmd"
;;
esac
}
remote_update () {
ssh $1 << EOF
$(typeset -f has_sudo)
$(typeset -f elevate_cmd)
elevate_cmd apt update -qq
elevate_cmd apt upgrade -y
elevate_cmd apt autoremove
EOF
}
#for i in "${targets[@]}"
#do
# :
# do whatever on "$i" here
# echo $i
echo "###################################"
echo "Auto Remote Updater"
echo -e "###################################\n"
finished=false
while [ "$finished" != "true" ]
do
# Choose script to install
echo "0) Sortir de l'script"
echo "1) current host: $(hostname)"
echo "2) custom host"
show_ssh_hosts
choosed=false
while [ "$choosed" != "true" ]
do
read -p 'Indica quin host vols actualitzar (0 per sortir): ' HOST
case $HOST in
("") echo "El número no pot ser buit";;
(*[!0-9]*) echo "Has d'introduir un número";;
(*) choosed=true #echo "just numeric";;
esac
done
if [ "$HOST" = "0" ]; then
finished=true
exit 0
elif [ "$HOST" = "1" ]; then
apt update -qq
apt upgrade -y
apt autoremove
elif [ "$HOST" = "2" ]; then
read -p 'Indica el host remot: ' CUSTOM
echo $CUSTOM
elif [ "$((HOST-OFFSET_OPTIONS))" -lt $NUM_HOSTS ]; then
index=$((HOST-OFFSET_OPTIONS))
echo "${TARGETS[$index]}"
remote_update "${TARGETS[$index]}"
else
echo -e "Aquest número de host no existeix. Tornar a intentar-ho\n"
fi
done