#! /bin/sh
echo 'Instalando dependencias' 
apk add --no-cache parted e2fsprogs-extra
echo '******'
echo "ANTES:"
echo '******'
lsblk
read -r -p "Do you want to expand / partition to max available size? Choose \"No\" to continue without expanding partition [y/N]: " response
  case $response in
    [yY][eE][sS]|[yY])
      echo "Expanding / partition..."
      PARTEND=`printf %s\\n 'unit GB print list' | parted | grep "Disk /dev/sda" | cut -d' ' -f3 | tr -d GB`GB
      parted /dev/sda ---pretend-input-tty <<EOF
resizepart
3
yes
$PARTEND
quit
EOF
      resize2fs /dev/sda3
      echo "done"
      echo ""
      ;;
    *)
      echo "continuing...."
    ;;
  esac
echo '********'
echo 'DESPUES:'
echo '********'
lsblk