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#!/usr/bin/env bash
# CONSTANTS
BASEDIR=$(dirname "$0")
OLDNAME=''
NEWNAME=''
# FUNCTIONS
function usage {
echo "usage: $(basename "$0") {current_name} {new_name}"
}
function parse_options {
while [[ $# -gt 0 ]]; do
case "$1" in
list-bridges | list-zfs-pools | list-dir-pools)
COMMAND=$1
;;
--help | -h)
usage && exit 0
;;
*)
if [[ -z $OLDNAME ]]; then
OLDNAME=$1
else
if [[ -z $NEWNAME ]]; then
NEWNAME=$1
else
echo >&2 "Unknown option: $1" && usage && exit 2
fi
fi
;;
esac
shift 1 # Move to the next argument
done
}
function assert_args {
[[ -z $NEWNAME ]] && echo 'error: arguments required!' && usage && exit 10
if vmid=$(pct-lookup $NEWNAME 2>/dev/null); then
echo "error: new_name already used for vmid=<$vmid>!"
exit 20
fi
}
function rename {
vmid=$(pct-lookup $OLDNAME)
[[ ! -f /etc/pve/lxc/$vmid.conf ]] && echo "no configuration file found for vmid=<$vmid>" && exit 20
/opt/miaou-bash/tools/append_or_replace '^hostname:.*$' "hostname: $NEWNAME" /etc/pve/lxc/$vmid.conf
}
# MAIN
set -Eue
parse_options $*
assert_args
rename