ubuntu.logic

#
set -e
#
NEEDED_PACKAGES=sudo,openssh-server,file,kbd,lsof
PKGLIST=${NEEDED_PACKAGES},bash-completion,less,bzip2,acpid,net-tools
DEBOOTSTRAP=$(which debootstrap)
MIRROR=http://archive.ubuntu.com/ubuntu
IMAGE_NEEDS="git vim language-pack-en gcc g++ make euca2ools"
UUFILE=/etc/apt/apt.conf.d/20auto-upgrades
#
if [ ${ARCH} = x86_64 ]; then
  ARCH=amd64
fi
#
installBaseSystem(){
  echo "* Installing Ubuntu ${RELEASE} ${ARCH} system to ${MOUNTDIR}"
  debootstrap --no-check-gpg --arch=${ARCH} --verbose --include=${PKGLIST},${KERNEL} ${RELEASE} ${MOUNTDIR} ${MIRROR}
}
#
setLocale(){
  # set locale
  echo "en_US.UTF-8 UTF-8" >> ${MOUNTDIR}/etc/locale.gen
  chroot ${MOUNTDIR} locale-gen en_US.UTF-8
  chroot ${MOUNTDIR} update-locale LANG=en_US.UTF-8
}
#
createRepositories(){
  echo "deb ${MIRROR} ${RELEASE} main restricted universe multiverse" > ${MOUNTDIR}/etc/apt/sources.list
  echo "deb ${MIRROR} ${RELEASE}-updates main restricted universe multiverse" >> ${MOUNTDIR}/etc/apt/sources.list
  echo "deb ${MIRROR} ${RELEASE}-security main restricted universe multiverse" >> ${MOUNTDIR}/etc/apt/sources.list
  if [[ ${BACKPORTS} = yes ]]; then
    echo "deb ${MIRROR} ${RELEASE}-backports main restricted universe multiverse" >> ${MOUNTDIR}/etc/apt/sources.list
  fi
  chroot ${MOUNTDIR} apt-get update
}
#
upgradeSystem(){
  chroot ${MOUNTDIR} apt-get -y install apt-transport-https || true
  chroot ${MOUNTDIR} bash -c "DEBIAN_FRONTEND=noninteractive apt-get -y install extlinux cloud-init cloud-utils linux-image-virtual cloud-initramfs-growroot"
  chroot ${MOUNTDIR} apt-get -y install ${IMAGE_NEEDS}
  chroot ${MOUNTDIR} apt-get -y dist-upgrade
  chroot ${MOUNTDIR} apt-get -y autoremove || true
}
#
adjustCloudSettings(){
  # Allow SSH in as root, even though it might be unsecure
  sed -i 's/disable_root: true/disable_root: false/' ${MOUNTDIR}/etc/cloud/cloud.cfg
  sed -i "s/name: ubuntu/name: ${CLOUD_USER}/" ${MOUNTDIR}/etc/cloud/cloud.cfg
  # Since we implemented "backdoor" we want to be able to use it :)
  sed -i "s/PermitRootLogin yes/PermitRootLogin without-password/" ${MOUNTDIR}/etc/ssh/sshd_config
  #
  # set timezone
  cp ${MOUNTDIR}/usr/share/zoneinfo/America/New_York ${MOUNTDIR}/etc/localtime
}
#
configureFSTab(){
# Setup fstab
  echo "# /etc/fstab: static file system information.
proc  /proc  proc  nodev,noexec,nosuid  0  0
UUID=${UUID}  /  ext4  errors=remount-ro  0  1
" > ${MOUNTDIR}/etc/fstab
# avoiding micro /tmp of 1024k size
  rm -fv ${MOUNTDIR}/etc/init/mounted-tmp.conf
}
#
configureBoot(){
  # Setting-up initramfs
  chroot ${MOUNTDIR} update-initramfs -u
  KERNEL=$(chroot ${MOUNTDIR} find boot -name 'vmlinuz-*' | sort | tail -n 1)
  RAMDISK=$(chroot ${MOUNTDIR} find boot -name 'initrd.img-*' | sort | tail -n 1)
  mkdir -p ${MOUNTDIR}/boot/extlinux
  extlinux --install ${MOUNTDIR}/boot/extlinux
  chroot ${MOUNTDIR} ln -snf . /boot/boot
  echo "default linux
timeout 10
label linux
kernel /${KERNEL}
append initrd=/${RAMDISK} root=UUID=${UUID} rootfstype=ext4 console=tty0 console=ttyS0,115200 net.ifnames=0 ro" > ${MOUNTDIR}/boot/extlinux/extlinux.conf
}
#
configureNetwork(){
#
  mkdir -p /etc/network
  chroot ${MOUNTDIR} apt-get -y install ifupdown
#
  echo "# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The normal eth0
auto eth0
iface eth0 inet dhcp
" > ${MOUNTDIR}/etc/network/interfaces
}
#
configureModules(){
  echo "# disable pc speaker
blacklist pcspkr" > ${MOUNTDIR}/etc/modprobe.d/blacklist.conf
echo "# Required for cinder hotplug
acpiphp
pci_hotplug
" >> ${MOUNTDIR}/etc/modules
}
#
cleanupSystem(){
  echo "* removing SSH keys ..."
  rm -f ${MOUNTDIR}/etc/ssh/ssh_host_*
  echo "* removing UDEV persistent net rules ..."
  rm -f ${MOUNTDIR}/etc/udev/rules.d/*-persistent-net.rules
  rm -f ${MOUNTDIR}/lib/udev/write_net_rules
  echo "* cleaning downloaded APT archives ..."
  rm -f ${MOUNTDIR}/var/cache/apt/archives/*.deb
  if [ -f ${MOUNTDIR}/${UUFILE} ]; then
    sed -i 's:1:0:g' ${MOUNTDIR}/${UUFILE}
  fi
}
#
setupConsole(){
  if [ -d ${MOUNTDIR}/etc/systemd ]; then
    mkdir -p ${MOUNTDIR}/etc/systemd/system/getty@tty1.service.d
    echo '[Service]
TTYVTDisallocate=no' > ${MOUNTDIR}/etc/systemd/system/getty@tty1.service.d/noclear.conf
    chroot ${MOUNTDIR} systemctl enable serial-getty@ttyS0.service || true
  fi
  if [ -f ${MOUNTDIR}/etc/kbd/config ]; then
    # Turn off console blanking which is *very* annoying and increase KEYBOARD_DELAY because it can be annoying over network.
    sed -i s/^BLANK_TIME=.*/BLANK_TIME=0/ ${MOUNTDIR}/etc/kbd/config
    sed -i s/^POWERDOWN_TIME=.*/POWERDOWN_TIME=0/ ${MOUNTDIR}/etc/kbd/config
    sed -i 's/^[ \t#]KEYBOARD_DELAY=.*/KEYBOARD_DELAY=1000/' ${MOUNTDIR}/etc/kbd/config
  fi
}
#
setHostname(){
  echo "${DISTRO}.${RELEASE}.openstack" > ${MOUNTDIR}/etc/hostname
  if [[ ${RELEASE} = artful ]] || [[ ${RELEASE} = bionic ]] || [[ ${RELEASE} = cosmic ]]; then
    chroot ${MOUNTDIR} systemctl enable systemd-networkd
    chroot ${MOUNTDIR} apt-get -y install policykit-1
    rm -fv ${MOUNTDIR}/etc/resolv.conf
    chroot ${MOUNTDIR} ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
  fi
}
#
createCloudUser(){
  echo "* adding cloud user ${CLOUD_USER} ..."
  chroot ${MOUNTDIR} adduser --gecos ${DISTRO}-cloud-user --disabled-password --quiet ${CLOUD_USER}
}
#