cria uma VM com arch linux descartavel em menos de 1 min. Requer ~3Gb de RAM livre (para criar disco+RAM)

arch-volatil.sh

#!/usr/bin/env sh

set -x
set -e

MNTDIR="/tmp/lol/mnt"
TEMPDISK="/tmp/lol/tempdisk.img"
SSH_PUB="${HOME}/.ssh/id_rsa_$(hostname).pub"
TEMPDIR="$(dirname "${TEMPDISK}")"

if ! [ -f "${TEMPDISK}" ]; then

  [ -d "${TEMPDIR}" ] || mkdir -p "${TEMPDIR}"
  qemu-img create -f raw "${TEMPDISK}" 4G
  mkfs.ext4 "${TEMPDISK}" | tee "${TEMPDIR}/disk"
  [ -d "${MNTDIR}" ] || mkdir -p "${MNTDIR}"
  sudo mount "${TEMPDISK}" "${MNTDIR}"
  sudo pacstrap -c "${MNTDIR}" base python2 openssh vim htop docker systemd
  sudo arch-chroot "${MNTDIR}" groupadd -g 1000 ec2-user
  sudo arch-chroot "${MNTDIR}" useradd -m -g ec2-user -u 1000 ec2-user
  sudo arch-chroot "${MNTDIR}" sed -i -E \
    "s/^MODULES=\(/MODULES=\(virtio virtio_blk virtio_pci virtio_net/" \
    "/etc/mkinitcpio.conf"
  sudo arch-chroot "${MNTDIR}" mkinitcpio -p linux
  mkdir -p "${MNTDIR}/home/ec2-user/.ssh"
  cat "${SSH_PUB}" > "${MNTDIR}/home/ec2-user/.ssh/authorized_keys"
  sudo arch-chroot "${MNTDIR}" systemctl enable sshd
  cp "${MNTDIR}/boot/vmlinuz-linux" "${MNTDIR}/boot/initramfs-linux.img" "/tmp/lol"
  sudo umount "${MNTDIR}"
fi

UUID="$(awk '/UUID/ { print $3 }' "${TEMPDIR}/disk")"

qemu-system-x86_64 --enable-kvm \
  -kernel /tmp/lol/vmlinuz-linux -initrd /tmp/lol/initramfs-linux.img \
  -append "root=UUID=${UUID} rw" \
  -m 4G -boot order=c \
  -drive file="${TEMPDISK}",format=raw,media=disk,if=virtio,index=0


#  7f802a27-8c03-4baf-9dbb-6e794a3df209