#!/bin/bash
show_help()
    echo 'Usage:'
    echo 'vmcreate [-h][-a][-k pub_keyfile][-f filename]'
    echo 'Arguments:'
    echo '-h - show this help;'
    echo '-a - add hosts to HA affinity rules;'
    echo "-f - get IP addresses and Hostnames from 'flilename';"
    echo "-k - embed custom public key or create new if 'pub_keyfile' not specified"
    echo "\nIf file not specified, script will use arguments as a list of IP addresses."
    echo "In this case Hostname will be inherited from 2 last IP octets. Example for 10.10.35.20: 'vm035020'."

make_file (){
    touch hosts.tmp
}

ip_check (){

}

hostame_generate(){

}

keypair_generate (){

#указать в конце функции переменную для вывода названия приватного ключа
privkey=
}

while getopts "a:f:h" opt; do
	case $opt in
	    a) haadd=true ;;
	    f) file="$OPTARG" ;;
	    h) show_help ; exit 0;;
        *) noargs=true
	esac
done

cat ./hosts | while read line
do
    ip=$(echo $line | cut -d ' ' -f 1)
    hostname=$(echo $line | cut -d ' ' -f 2)
    vmnum=$(echo $ip | cut -d '.' -f 3)(echo $ip | cut -d '.' -f 3)
    qm clone 5000 $vmnum --name $hostname --full 
    if [ $? -eq 0 ] 
        then echo "clone OK"
        else "clone ERROR"; exit 1
        fi
    qm set $vmnum --tags 3,gfx
    ## preparing custom CloudInit snippets
    cp ./user.yaml /mnt/pve/syno-tigra/snippets/${vmnum}_user.yaml
    sed -i "s/HOSTNAME/$hostname/g" /mnt/pve/syno-tigra/snippets/${vmnum}_user.yaml
    qm resize $vmnum scsi0 +50G
    qm set $vmnum --cicustom "user=syno-tigra:snippets/${vmnum}_user.yaml"
    qm set $vmnum --ipconfig0 ip=$ip/24,gw=10.10.35.1
    qm cloudinit update $vmnum
    qm start $vmnum
# ДОБАВИТЬ правило HA если $haadd
done
if [ -e hosts.tmp] 
    then
    rm hosts.tmp
    fi
echo "VMs from 'hosts' successfully created"
if [ -v $privkey ]
    then
    echo "Generated private key $privkey"
    echo "SAVE IT IMMEDIATELY!!!"
    fi