wie kann ich einen Debian Hetzner Server im eigenen Netz simulieren?
https://wiki.hetzner.de/index.php/Installimage
https://github.com/hetzneronline/installimage
Code: Alles auswählen
#!/bin/bash
#
# Debian specific functions
#
# (c) 2008-2018, Hetzner Online GmbH
#
# setup_network_config "$device" "$HWADDR" "$IPADDR" "$BROADCAST" "$SUBNETMASK" "$GATEWAY" "$NETWORK" "$IP6ADDR" "$IP6PREFLEN" "$IP6GATEWAY"
setup_network_config() {
if [ -n "$1" ] && [ -n "$2" ]; then
#
# good we have a device and a MAC
#
CONFIGFILE="$FOLD/hdd/etc/network/interfaces"
if [ -f "$FOLD/hdd/etc/udev/rules.d/70-persistent-net.rules" ]; then
UDEVFILE="$FOLD/hdd/etc/udev/rules.d/70-persistent-net.rules"
else
UDEVFILE="/dev/null"
fi
{
echo "### $COMPANY - installimage"
echo "# device: $1"
printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="%s", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="%s"\n' "$2" "$1"
} > "$UDEVFILE"
{
echo "### $COMPANY - installimage"
echo "# Loopback device:"
echo "auto lo"
echo "iface lo inet loopback"
echo "iface lo inet6 loopback"
echo ""
} > "$CONFIGFILE"
if [ -n "$3" ] && [ -n "$4" ] && [ -n "$5" ] && [ -n "$6" ] && [ -n "$7" ]; then
echo "# device: $1" >> "$CONFIGFILE"
if is_private_ip "$6" && isVServer; then
{
echo "auto $1"
echo "iface $1 inet dhcp"
} >> "$CONFIGFILE"
else
{
echo "auto $1"
echo "iface $1 inet static"
echo " address $3"
echo " netmask $5"
echo " gateway $6"
if ! is_private_ip "$3" || ! isVServer; then
echo " # default route to access subnet"
echo " up route add -net $7 netmask $5 gw $6 $1"
fi
} >> "$CONFIGFILE"
fi
fi
if [ -n "$8" ] && [ -n "$9" ] && [ -n "${10}" ]; then
debug "setting up ipv6 networking $8/$9 via ${10}"
{
echo ""
echo "iface $1 inet6 static"
echo " address $8"
echo " netmask $9"
echo " gateway ${10}"
} >> "$CONFIGFILE"
fi
#
# set duplex speed
#
if ! isNegotiated && ! isVServer; then
{
echo " # force full-duplex for ports without auto-neg"
echo " post-up mii-tool -F 100baseTx-FD $1"
} >> "$CONFIGFILE"
fi
return 0
fi
}
# generate_config_mdadm "NIL"
generate_config_mdadm() {
local mdadmconf="/etc/mdadm/mdadm.conf"
execute_chroot_command "/usr/share/mdadm/mkconf > $mdadmconf"; declare -i EXITCODE=$?
#
# Enable mdadm
#
local mdadmdefconf="$FOLD/hdd/etc/default/mdadm"
sed -i "s/AUTOCHECK=false/AUTOCHECK=true # modified by installimage/" \
"$mdadmdefconf"
sed -i "s/AUTOSTART=false/AUTOSTART=true # modified by installimage/" \
"$mdadmdefconf"
sed -i "s/START_DAEMON=false/START_DAEMON=true # modified by installimage/" \
"$mdadmdefconf"
sed -i -e "s/^INITRDSTART=.*/INITRDSTART='all' # modified by installimage/" \
"$mdadmdefconf"
return "$EXITCODE"
}
# generate_new_ramdisk "NIL"
generate_new_ramdisk() {
if [ -n "$1" ]; then
local outfile; outfile=$(find "$FOLD"/hdd/boot -name "initrd.img-*" -not -regex ".*\(gz\|bak\)" -printf "%f\n" | sort -nr | head -n1)
local kvers; kvers=$(echo "$outfile" |cut -d "-" -f2-)
debug "# Kernel Version found: $kvers"
if [ "$IMG_VERSION" -ge 60 ]; then
local blacklist_conf="$FOLD/hdd/etc/modprobe.d/blacklist-$C_SHORT.conf"
# blacklist various driver due to bugs and stability issues
{
echo "### $COMPANY - installimage"
echo "### silence any onboard speaker"
echo "blacklist pcspkr"
echo "blacklist snd_pcsp"
echo "### i915 driver blacklisted due to various bugs"
echo "### especially in combination with nomodeset"
echo "blacklist i915"
echo "### mei driver blacklisted due to serious bugs"
echo "blacklist mei"
echo "blacklist mei-me"
echo "blacklist sm750fb"
} > "$blacklist_conf"
fi
# apparently sometimes the mdadm assembly bugfix introduced with the recent mdadm release does not work
# however, the problem is limited to H8SGL boards
# see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=784070
if [ "$IMG_VERSION" -ge 80 ] && [ "$IMG_VERSION" != 710 ] && [ "$IMG_VERSION" != 711 ] && [ "$MBTYPE" = 'H8SGL' ]; then
local script="$FOLD/hdd/usr/share/initramfs-tools/scripts/local-block/mdadmpatch"
cp "$SCRIPTPATH/h8sgl-deb8-md.sh" "$script"
chmod a+x "$script"
fi
# just make sure that we do not accidentally try to install a bootloader
# when we haven't configured grub yet
# Debian won't install a boot loader anyway, but display an error message,
# that needs to be confirmed
sed -i "s/do_bootloader = yes/do_bootloader = no/" "$FOLD/hdd/etc/kernel-img.conf"
# well, we might just as well update all initramfs and stop findling around
# to find out which kernel version is the latest
execute_chroot_command "update-initramfs -u -k $kvers"; EXITCODE=$?
return "$EXITCODE"
fi
}
setup_cpufreq() {
if [ -n "$1" ]; then
local loadcpufreqconf="$FOLD/hdd/etc/default/loadcpufreq"
local cpufreqconf="$FOLD/hdd/etc/default/cpufrequtils"
{
echo "### $COMPANY - installimage"
echo "# cpu frequency scaling"
} > "$cpufreqconf"
if isVServer; then
echo 'ENABLE="false"' > "$loadcpufreqconf"
echo 'ENABLE="false"' >> "$cpufreqconf"
else
{
echo 'ENABLE="true"'
echo "GOVERNOR=\"$1\""
echo 'MAX_SPEED="0"'
echo 'MIN_SPEED="0"'
} >> "$cpufreqconf"
fi
return 0
fi
}
#
# Generate the GRUB bootloader configuration.
#
generate_config_grub() {
declare -i EXITCODE=0
local grubdefconf="$FOLD/hdd/etc/default/grub"
# set linux_default in grub
local grub_linux_default="nomodeset consoleblank=0"
if isVServer; then
grub_linux_default="${grub_linux_default} elevator=noop"
fi
if has_threadripper_cpu; then
grub_linux_default+=' pci=nommconf'
fi
if is_dell_r6415; then
grub_linux_default=${grub_linux_default/nomodeset }
fi
sed -i "$grubdefconf" -e "s/^GRUB_HIDDEN_TIMEOUT=.*/GRUB_HIDDEN_TIMEOUT=5/" -e "s/^GRUB_HIDDEN_TIMEOUT_QUIET=.*/GRUB_HIDDEN_TIMEOUT_QUIET=false/"
sed -i "$grubdefconf" -e "s/^GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT=\"${grub_linux_default}\"/"
rm "$FOLD/hdd/boot/grub/grub.cfg"
if [ "$UEFI" -eq 1 ]; then
execute_chroot_command "echo 'set grub2/update_nvram false' | debconf-communicate"
execute_chroot_command "echo 'set grub2/force_efi_extra_removable true' | debconf-communicate"
fi
execute_chroot_command "grub-mkconfig -o /boot/grub/grub.cfg 2>&1"
if [ "$UEFI" -eq 1 ]; then
local efi_target="x86_64-efi"
local efi_dir="/boot/efi"
local efi_grub_options="--no-floppy --no-nvram --removable"
execute_chroot_command "grub-install --target=${efi_target} --efi-directory=${efi_dir} ${efi_grub_options} 2>&1"
declare -i EXITCODE=$?
else
# only install grub2 in mbr of all other drives if we use swraid
for ((i=1; i<=COUNT_DRIVES; i++)); do
if [ "$SWRAID" -eq 1 ] || [ "$i" -eq 1 ] ; then
local disk; disk="$(eval echo "\$DRIVE"$i)"
execute_chroot_command "grub-install --no-floppy --recheck $disk 2>&1"
fi
done
fi
if ((IMG_VERSION >= 70)); then
debconf_set_grub_install_devices #|| return 1
fi
uuid_bugfix
PARTNUM=$(echo "$SYSTEMBOOTDEVICE" | rev | cut -c1)
if [ "$SWRAID" = "0" ]; then
PARTNUM="$((PARTNUM - 1))"
fi
delete_grub_device_map
return "$EXITCODE"
}
delete_grub_device_map() {
[ -f "$FOLD/hdd/boot/grub/device.map" ] && rm "$FOLD/hdd/boot/grub/device.map"
}
#
# os specific functions
# for purpose of e.g. debian-sys-maint mysql user password in debian/ubuntu LAMP
#
run_os_specific_functions() {
randomize_mdadm_checkarray_cronjob_time
if hetzner_lamp_install; then
setup_hetzner_lamp || return 1
fi
(( "${IMG_VERSION}" >= 80 )) && (( "${IMG_VERSION}" != 710 )) && (( "${IMG_VERSION}" != 711 )) && debian_udev_finish_service_fix
[[ -e "$FOLD/hdd/var/spool/exim4/input" ]] && find "$FOLD/hdd/var/spool/exim4/input" -type f -delete
disable_resume
return 0
}
randomize_mdadm_checkarray_cronjob_time() {
local mdcron="$FOLD/hdd/etc/cron.d/mdadm"
if [ -f "$mdcron" ] && grep -q checkarray "$mdcron"; then
declare -i hour minute day
minute=$(((RANDOM % 59) + 1))
hour=$(((RANDOM % 4) + 1))
day=$(((RANDOM % 28) + 1))
debug "# Randomizing cronjob run time for mdadm checkarray: day $day @ $hour:$minute"
sed -i -e "s/^[* 0-9]*root/$minute $hour $day * * root/" -e "s/ &&.*]//" "$mdcron"
else
debug "# No /etc/cron.d/mdadm found to randomize cronjob run time"
fi
}
debian_grub_fix() {
local mapper="$FOLD/hdd/dev/mapper"
local tempfile="$FOLD/hdd/tmp/mapper.tmp"
ls -l "$mapper" > "$tempfile"
grep -v "total" "$tempfile" | grep -v "crw" | while read -r line; do
local dmdevice volgroup
volgroup=$(echo "$line" | cut -d " " -f9)
dmdevice=$(echo "$line" | cut -d "/" -f2)
rm "$mapper/$volgroup"
cp -R "$FOLD/hdd/dev/$dmdevice" "$mapper/$volgroup"
done
rm "$tempfile"
}
debian_udev_finish_service_fix() {
local unit_file="${FOLD}/hdd/lib/systemd/system/udev-finish.service"
local override_dir="${FOLD}/hdd/etc/systemd/system/udev-finish.service.d"
local override_file="${override_dir}/override.conf"
if ! [[ -f "${unit_file}" ]]; then
debug '# udev-finish.service not found. not installing override'
return
fi
debug '# install udev-finish.service override'
mkdir "${override_dir}"
{
echo "### ${COMPANY} - installimage"
echo '[Unit]'
echo 'After=basic.target'
} > "${override_file}"
}
# vim: ai:ts=2:sw=2:etDas Script verstehe ich nicht.
Wo kommen die Grunddaten her?
Was habe ich zu berücksichtigen?
Wie muss der Grundplan aussehen?
Wie komme ich am einfachsten zu meinem eigenen Rescue-System?Installimage wird direkt im Rescue-System auf Ihrem Server gestartet. Es bietet Ihnen eine menügsteuerte Auswahl des von Ihnen gewünschten Betriebssystems. Sie haben volle Kontrolle über die Aufteilung Ihren Festplatte(n) und können auch die Verwendung von Software-RAID sowie LVM in einem einfachen Editor definieren.
MfG
AxelMD
