Template pods

_etc_update-motd.d_99-reconfigure

#!/bin/bash

export TERM=xterm-256color
echo -ne "\n$(tput setaf 3;tput setab 0;tput bold)\n\n"
echo -ne "  Este servidor foi criado com base em um modelo.\n"
echo -ne "  Para alterar o nome e o IP, utilize o script $(tput setaf 7)reconfigure$(tput setaf 3).  \n"
echo -ne "$(tput sgr0)\n\n"

_usr_local_bin_reconfigure

#!/bin/bash

me=$(/usr/bin/basename $0)

if [ 0 -ne $(/usr/bin/id -u) ]; then
    /bin/echo "Sem poderes de super-vaca"
    exit 1
fi

if [ 2 -gt $# ]; then
    /bin/echo "Uso: $me <hostname> <ip/maskbits> [<gw> [<dns1,dns2,dns3>]]"
    /bin/echo
    /bin/echo "Ex.: $me servidor 10.0.7.2/24 10.0.7.1 172.20.2.212,172.20.2.8"
    /bin/echo
    /bin/echo "Se omitidos, gw = 10.0.7.1 e dns = 172.20.2.212,172.20.2.8"
    /bin/echo
    exit 1
fi

nhostname=$1
ipmask=$2
gw='10.0.7.1'
dns='172.20.2.212,172.20.2.8'

if [ 3 -le $# ]; then
    gw=$3
fi

if [ 4 -le $# ]; then
    dns=$4
fi

echo "Alterando hostname para $nhostname"
/bin/sed -i "s/template/$nhostname/g" /etc/hostname
/bin/sed -i "s/template/$nhostname/g" /etc/hosts
/bin/hostname $nhostname

/bin/echo "Alterando configuração de rede para $ipmask, gateway $gw e DNS $dns"
/bin/echo "# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  renderer: networkd
  ethernets:
    ens160:
      dhcp4: no
      addresses: [$ipmask]
      gateway4: $gw
      nameservers:
        addresses: [$dns]
" > /etc/netplan/01-netcfg.yaml

/bin/echo "Para aplicar, use: netplan apply."
/bin/echo "  Se seu IP foi alterado, este terminal pode ser desconectado."
/bin/chmod a-x /etc/update-motd.d/99-reconfigure