cdist/cdist/preos/debootstrap/files/code

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#!/bin/sh
##
## 2016 Darko Poljak (darko.poljak at ungleich.ch)
##
## This file is part of cdist.
##
## cdist is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## cdist is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with cdist. If not, see <http://www.gnu.org/licenses/>.
set -e
if [ "${debug}" ]
then
set -x
cdist_params="${cdist_params} -d"
fi
bootstrap_dir="${target_dir}"
case "${os}" in
ubuntu|debian|devuan)
# nothing, those are valid values
;;
*)
echo "ERROR: invalid os value: ${os}" >&2
exit 1
;;
esac
check_bootstrap_dir() {
if [ ! -e "$1" ]
then
echo "ERROR: bootstrap directory $1 does not exist" >&2
exit 1
fi
}
# bootstrap
if [ "${bootstrap}" ]
then
if [ "${DEBOOTSTRAP_DIR}" ]
then
debootstrap_cmd="${DEBOOTSTRAP_DIR}/debootstrap"
else
command -v debootstrap 2>&1 > /dev/null || {
echo "ERROR: debootstrap not found" >&2
exit 1
}
debootstrap_cmd="debootstrap"
fi
# If PreOS on drive then do not check for directory emptiness.
# Partition can at least contain 'lost+found' directory.
if [ ! "${drive}" ]
then
if [ -e "${bootstrap_dir}" ]
then
dir_content=$(ls -A "${bootstrap_dir}" | wc -l)
else
dir_content=0
fi
if [ "${dir_content}" -ne 0 ]
then
echo "ERROR: "${bootstrap_dir}" not empty " >&2
exit 1
fi
fi
if [ "${verbose}" -o "${debug}" ]
then
echo "bootstrapping..."
fi
mkdir -p "${bootstrap_dir}"
"${debootstrap_cmd}" --include=openssh-server --arch=${arch} ${suite} ${bootstrap_dir} \
${mirror} ${script}
if [ "${verbose}" -o "${debug}" ]
then
echo "bootstrap finished"
fi
fi
chroot_mount() {
mount -t proc none "${bootstrap_dir}/proc" || true
mount -t sysfs none "${bootstrap_dir}/sys" || true
mount -o bind /dev "${bootstrap_dir}/dev" || true
mount -t devpts none "${bootstrap_dir}/dev/pts" || true
}
chroot_umount() {
umount "${bootstrap_dir}/dev/pts" || true
umount "${bootstrap_dir}/dev" || true
umount "${bootstrap_dir}/sys" || true
umount "${bootstrap_dir}/proc" || true
}
TRAPFUNC="umount \"${bootstrap_dir}/dev/pts\" || true; \
umount \"${bootstrap_dir}/dev\" || true; \
umount \"${bootstrap_dir}/sys\" || true; \
umount \"${bootstrap_dir}/proc\" || true;"
# config
if [ "${configure}" ]
then
if [ ! -f "${manifest}" ]
then
echo "ERROR: ${manifest} does not exist" >&2
exit 1
fi
if [ ! -f "${remote_exec}" ]
then
echo "ERROR: ${remote_exec} does not exist" >&2
exit 1
fi
if [ ! -f "${remote_copy}" ]
then
echo "ERROR: ${remote_copy} does not exist" >&2
exit 1
fi
if [ "${keyfile_cnt}" -a "${keyfile_cnt}" -gt 0 ]
then
i="$((keyfile_cnt - 1))"
keyfiles=""
while [ "${i}" -ge 0 ]
do
kf_var="keyfile_${i}"
eval kf='$'"${kf_var}"
if [ ! -f "${kf}" ]
then
echo "ERROR: ${kf} does not exist" >&2
exit 1
fi
key=$(cat "${kf}")
keyfiles="${keyfiles} --key '${key}'"
i=$((i - 1))
done
ssh_auth_keys_line="__ssh_authorized_keys root ${keyfiles}\n"
else
ssh_auth_keys_line=""
fi
check_bootstrap_dir "${bootstrap_dir}"
if [ "${verbose}" -o "${debug}" ]
then
echo "configuring..."
fi
trap "${TRAPFUNC}" 0 1 2 3 15
chroot_mount
chroot "${bootstrap_dir}" /usr/bin/apt-get update
if [ "${drive}" ]
then
grub_manifest_line="__package grub-pc --state present\n"
grub_kern_params_line="__line linux_kernel_params \
--file /etc/default/grub \
--line 'GRUB_CMDLINE_LINUX_DEFAULT=\"quiet splash net.ifnames=0\"'\n"
else
grub_manifest_line=""
grub_kern_params_line=""
fi
grub_lines="${grub_manifest_line}${grub_kern_params_line}"
printf "${ssh_auth_keys_line}${grub_lines}" \
| cat "${manifest}" - |\
cdist config \
${cdist_params} -i - \
--remote-exec "${remote_exec}" \
--remote-copy "${remote_copy}" \
"${bootstrap_dir}"
# __hostname with systmed uses hostnamectl which needs dbus running
# set hostname explicitly here instead
printf "preos\n" > "${bootstrap_dir}/etc/hostname"
chroot "${bootstrap_dir}" /usr/bin/apt-get autoclean
chroot "${bootstrap_dir}" /usr/bin/apt-get clean
chroot "${bootstrap_dir}" /usr/bin/apt-get autoremove
chroot_umount
trap - 0 1 2 3 15
if [ "${verbose}" -o "${debug}" ]
then
echo "configuring finished"
fi
fi
if [ "${pxe_boot_dir}" ]
then
check_bootstrap_dir "${bootstrap_dir}"
if [ "${verbose}" -o "${debug}" ]
then
echo "creating pxe..."
fi
mkdir -p "${pxe_boot_dir}"
cp "${bootstrap_dir}"/boot/vmlinuz-* "${pxe_boot_dir}/kernel"
cd "${bootstrap_dir}"
find . -print0 | cpio --null -o --format=newc | gzip -9 > "${pxe_boot_dir}/initramfs"
mkdir -p "${pxe_boot_dir}/pxelinux.cfg"
cat <<EOPXEF > "${pxe_boot_dir}/pxelinux.cfg/default"
DEFAULT preos
LABEL preos
KERNEL kernel
APPEND utf8 load_ramdisk=1 root=/dev/ram nofb initrd=initramfs console=ttyS1,115200 net.ifnames=0
EOPXEF
cp "${bootstrap_dir}/usr/lib/PXELINUX/pxelinux.0" "${pxe_boot_dir}/pxelinux.0"
cp "${bootstrap_dir}/usr/lib/syslinux/modules/bios/ldlinux.c32" \
"${pxe_boot_dir}/ldlinux.c32"
# network boot need all files world readable
chmod -R 644 "${pxe_boot_dir}"/*
if [ "${verbose}" -o "${debug}" ]
then
echo "pxe creation finished"
fi
fi
if [ "${drive}" ]
then
trap "${TRAPFUNC}" 0 1 2 3 15
chroot_mount
chroot "${bootstrap_dir}" grub-install ${drive}
chroot "${bootstrap_dir}" /bin/sh -c "GRUB_DISABLE_OS_PROBER=true update-grub"
# set root password
if [ ! "${root_password}" ]
then
if ! which strings >/dev/null 2>&1
then
printf "strings is missing\n" >&2
exit 1
fi
root_password="$(head -n 1000 /dev/urandom | strings | \
grep -o '[[:alnum:]]' | head -n 30 | tr -d '\n')"
printf "Generated root password (without quotes):'${root_password}'\n"
fi
chroot "${bootstrap_dir}" /bin/sh -c "echo \"root:${root_password}\" | \
chpasswd"
# /etc/securetty must not be world writeable.
chmod 644 "${bootstrap_dir}"/etc/securetty
chroot_umount
trap - 0 1 2 3 15
fi
if [ "${rm_bootstrap_dir}" ]
then
if [ "${verbose}" -o "${debug}" ]
then
echo "removing bootstrap dir..."
fi
rm -r -f "${bootstrap_dir}"
if [ "${verbose}" -o "${debug}" ]
then
echo "removing bootstrap dir finished"
fi
fi