Refactor ignition support during dracut
- Control root device using the node/profile root field - Add support for `/warewulf/wwinit.d` to run scripts during first stage - Move first-stage ignition support to `/warewulf/wwinit.d/` - Add `wwctl <node|profile> set --parttype` - Add overlay template functions `SystemdEscape` and `SystemdEscapePath` - Support configuring ignition with resources Signed-off-by: Jonathon Anderson <janderson@ciq.com>
This commit is contained in:
Jonathon Anderson
@@ -1,53 +1,65 @@
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#!/bin/sh
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echo "Warewulf pre-init (/init)"
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echo
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echo "Mounting kernel file systems..."
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if ! command -v info >/dev/null; then
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info() {
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printf '%s\n' "$*"
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}
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fi
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if ! command -v die >/dev/null; then
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die() {
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printf '%s\n' "$*" >&2
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echo
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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}
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fi
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info "warewulf: running pre-init wwinit process..."
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info "warewulf: mounting kernel file systems..."
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mountpoint -q /proc || (mkdir -p /proc && mount -t proc proc /proc && echo "Mounted /proc")
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mountpoint -q /dev || (mkdir -p /dev && mount -t devtmpfs devtmpfs /dev && echo "Mounted /dev")
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mountpoint -q /sys || (mkdir -p /sys && mount -t sysfs sysfs /sys && echo "Mounted /sys")
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# https://systemd.io/INITRD_INTERFACE/
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mountpoint -q /run || (mkdir -p /run && mount -t tmpfs -o mode=0755,nodev,nosuid,strictatime tmpfs /run && echo "Mounted /run")
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echo
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echo "Loading /warewulf/config..."
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info "warewulf: loading /warewulf/config..."
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if [ -f "/warewulf/config" ]; then
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. /warewulf/config
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else
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echo "ERROR: Warewulf configuration file not found."
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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die "warewulf: ERROR: /warewulf/config not found"
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fi
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echo
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echo "Configuring root file system..."
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WWPRESCRIPTS=/warewulf/wwprescripts
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chmod +rx "${WWPRESCRIPTS}"
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if [ -x /warewulf/run-wwinit.d ]; then
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/warewulf/run-wwinit.d
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fi
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NEXT_INIT=/warewulf/run-init
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chmod +rx "${NEXT_INIT}"
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info "warewulf: configuring root file system..."
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WWROOT="${WWROOT:-initramfs}"
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if [ "${WWROOT}" = "initramfs" ]; then
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echo "WWROOT=${WWROOT}: using initial rootfs and invoking ${WWPRESCRIPTS}..."
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exec "${WWPRESCRIPTS}"
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elif [ "${WWROOT}" = "persistent" ] ; then
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echo "WWROOT=${WWROOT}: booting from DISK"
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exec "${WWPRESCRIPTS}"
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elif [ "${WWROOT}" = "ramfs" -o "${WWROOT}" = "tmpfs" ]; then
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echo "WWROOT=${WWROOT}: setting up new ${WWROOT} rootfs (/newroot)..."
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mkdir /newroot
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mount wwroot /newroot -t ${WWROOT} -o mpol=interleave # mpol ignored for ramfs
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tar -cf - --exclude ./proc --exclude ./sys --exclude ./dev --exclude --exclude ./newroot . | tar -xf - -C /newroot
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mkdir /newroot/proc /newroot/dev /newroot/sys 2>/dev/null
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echo "Switching to new rootfs (/newroot) and invoking ${WWPRESCRIPTS}..."
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exec /sbin/switch_root /newroot "${WWPRESCRIPTS}"
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info "warewulf: using initial rootfs and invoking ${NEXT_INIT}..."
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exec "${NEXT_INIT}"
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else
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echo "ERROR: Unrecognized rootfs type requested: ${WWROOT}"
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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mkdir /newroot
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info "warewulf: mounting ${WWROOT} at /newroot"
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if [ "${WWROOT}" = "ramfs" -o "${WWROOT}" = "tmpfs" ]; then
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mount wwroot /newroot -t ${WWROOT} -o mpol=interleave # mpol ignored for ramfs
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else
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mount ${WWROOT} /newroot
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fi
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info "warewulf: copying image to /newroot..."
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tar -cf - --exclude ./proc --exclude ./sys --exclude ./dev --exclude --exclude ./newroot . | tar -xf - -C /newroot
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mkdir /newroot/proc /newroot/dev /newroot/sys 2>/dev/null
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info "warewulf: switching to /newroot and invoking ${NEXT_INIT}..."
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exec /sbin/switch_root /newroot "${NEXT_INIT}"
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fi
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echo
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echo "ERROR: wwinit encountered a problem."
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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die "warewulf: ERROR: wwinit encountered a problem."
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40
overlays/wwinit/rootfs/warewulf/run-init
Executable file
40
overlays/wwinit/rootfs/warewulf/run-init
Executable file
@@ -0,0 +1,40 @@
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#!/bin/sh
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if ! command -v info >/dev/null; then
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info() {
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printf '%s\n' "$*"
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}
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fi
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. /warewulf/config
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scriptdir=/warewulf/init.d
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echo "warewulf: running scripts in ${scriptdir}..."
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ls -1 "${scriptdir}/" | while read -r name; do
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info "warewulf: ${name}"
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sh "${scriptdir}/${name}"
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done
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init="${WWINIT}"
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if [ -z "${init}" ]
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then
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for candidate in /sbin/init /etc/init /bin/init
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do
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if [ -x "${candidate}" ]
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then
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init="${candidate}"
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break
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fi
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done
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fi
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if [ -n "${init}" ]
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then
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info "warewulf: invoking ${init}..."
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exec "${init}"
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else
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echo "ERROR: init not defined or not found."
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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fi
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18
overlays/wwinit/rootfs/warewulf/run-wwinit.d
Executable file
18
overlays/wwinit/rootfs/warewulf/run-wwinit.d
Executable file
@@ -0,0 +1,18 @@
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#!/bin/sh
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if ! command -v info >/dev/null; then
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info() {
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printf '%s\n' "$*"
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}
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fi
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scriptdir="${PREFIX}/warewulf/wwinit.d"
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if [ -d "${scriptdir}" ]; then
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info "warewulf: running scripts in ${scriptdir}..."
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ls -1 "${scriptdir}/" | while read -r name; do
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info "warewulf: ${name}"
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PREFIX=$PREFIX sh "${scriptdir}/${name}"
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done
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else
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info "warewulf: ${scriptdir} not found"
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fi
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@@ -1,36 +0,0 @@
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#!/usr/bin/sh
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. /warewulf/config
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echo "Warewulf prescript runner (/warewulf/wwprescripts)"
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scriptdir=/warewulf/init.d
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echo "Looking for prescripts in /warewulf/init.d/..."
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ls -1 "${scriptdir}/" | while read -r name; do
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echo "Running prescript: ${name}..."
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sh "${scriptdir}/${name}"
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done
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init="${WWINIT}"
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if [ -z "${init}" ]
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then
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for candidate in /sbin/init /etc/init /bin/init
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do
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if [ -x "${candidate}" ]
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then
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init="${candidate}"
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break
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fi
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done
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fi
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if [ -n "${init}" ]
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then
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echo
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echo "Running ${init}..."
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exec "${init}"
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else
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echo "ERROR: init not defined and not found."
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echo "Rebooting in 1 minute..."
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sleep 60
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echo b > /proc/sysrq-trigger || /sbin/reboot -f
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fi
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1
overlays/wwinit/rootfs/warewulf/wwprescripts
Symbolic link
1
overlays/wwinit/rootfs/warewulf/wwprescripts
Symbolic link
@@ -0,0 +1 @@
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run-init
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