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665a3d6d15
Automatically softreboot if the nextroot has been set up with an OS tree, or automatically kexec if a kernel has been loaded with kexec --load. Add SYSTEMCTL_SKIP_AUTO_KEXEC and SYSTEMCTL_SKIP_AUTO_SOFT_REBOOT to skip the automated switchover.
217 lines
8.7 KiB
Bash
Executable File
217 lines
8.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -ex
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set -o pipefail
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at_exit() {
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# Since the soft-reboot drops the enqueued end.service, we won't shutdown
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# the test VM if the test fails and have to wait for the watchdog to kill
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# us (which may take quite a long time). Let's just forcibly kill the machine
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# instead to save CI resources.
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if [[ $? -ne 0 ]]; then
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echo >&2 "Test failed, shutting down the machine..."
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systemctl poweroff -ff
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fi
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}
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trap at_exit EXIT
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systemd-analyze log-level debug
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export SYSTEMD_LOG_LEVEL=debug
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if [ -f /run/testsuite82.touch3 ]; then
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echo "This is the fourth boot!"
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systemd-notify --status="Fourth Boot"
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rm /run/testsuite82.touch3
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mount
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rmdir /original-root /run/nextroot
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# Check that the fdstore entry still exists
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test "$LISTEN_FDS" -eq 3
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read -r x <&5
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test "$x" = "oinkoink"
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# Check that the surviving services are still around
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test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-survive-argv.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive-sigterm.service)" != "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
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# All succeeded, exit cleanly now
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elif [ -f /run/testsuite82.touch2 ]; then
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echo "This is the third boot!"
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systemd-notify --status="Third Boot"
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rm /run/testsuite82.touch2
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# Check that the fdstore entry still exists
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test "$LISTEN_FDS" -eq 2
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read -r x <&4
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test "$x" = "miaumiau"
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# Upload another entry
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T="/dev/shm/fdstore.$RANDOM"
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echo "oinkoink" >"$T"
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systemd-notify --fd=3 --pid=parent 3<"$T"
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rm "$T"
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# Check that the surviving services are still around
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test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-survive-argv.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive-sigterm.service)" != "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
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# Test that we really are in the new overlayfs root fs
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read -r x </lower
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test "$x" = "miep"
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cmp /etc/os-release /run/systemd/propagate/.os-release-stage/os-release
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grep -q MARKER=1 /etc/os-release
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# Switch back to the original root, away from the overlayfs
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mount --bind /original-root /run/nextroot
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mount
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# Restart the unit that is not supposed to survive
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systemd-run --collect --service-type=exec --unit=testsuite-82-nosurvive.service sleep infinity
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# Now issue the soft reboot. We should be right back soon.
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touch /run/testsuite82.touch3
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systemctl --no-block soft-reboot
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# Now block until the soft-boot killing spree kills us
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exec sleep infinity
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elif [ -f /run/testsuite82.touch ]; then
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echo "This is the second boot!"
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systemd-notify --status="Second Boot"
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# Clean up what we created earlier
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rm /run/testsuite82.touch
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# Check that the fdstore entry still exists
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test "$LISTEN_FDS" -eq 1
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read -r x <&3
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test "$x" = "wuffwuff"
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# Check that we got a PrepareForShutdownWithMetadata signal with the right type
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cat /run/testsuite82.signal
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test "$(jq -r '.payload.data[1].type.data' </run/testsuite82.signal)" = "soft-reboot"
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# Upload another entry
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T="/dev/shm/fdstore.$RANDOM"
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echo "miaumiau" >"$T"
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systemd-notify --fd=3 --pid=parent 3<"$T"
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rm "$T"
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# Check that the surviving services are still around
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test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-survive-argv.service)" = "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive-sigterm.service)" != "active"
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test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
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# This time we test the /run/nextroot/ root switching logic. (We synthesize a new rootfs from the old via overlayfs)
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mkdir -p /run/nextroot /tmp/nextroot-lower /original-root
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mount -t tmpfs tmpfs /tmp/nextroot-lower
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echo miep >/tmp/nextroot-lower/lower
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# Copy os-release away, so that we can manipulate it and check that it is updated in the propagate
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# directory across soft reboots. Try to cover corner cases by truncating it.
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mkdir -p /tmp/nextroot-lower/usr/lib
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grep ID /etc/os-release >/tmp/nextroot-lower/usr/lib/os-release
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echo MARKER=1 >>/tmp/nextroot-lower/usr/lib/os-release
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cmp /etc/os-release /run/systemd/propagate/.os-release-stage/os-release
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(! grep -q MARKER=1 /etc/os-release)
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mount -t overlay nextroot /run/nextroot -o lowerdir=/tmp/nextroot-lower:/,ro
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# Bind our current root into the target so that we later can return to it
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mount --bind / /run/nextroot/original-root
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# Restart the unit that is not supposed to survive
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systemd-run --collect --service-type=exec --unit=testsuite-82-nosurvive.service sleep infinity
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# Now issue the soft reboot. We should be right back soon. Given /run/nextroot exists, we should
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# automatically do a softreboot instead of normal reboot.
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touch /run/testsuite82.touch2
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systemctl --no-block reboot
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# Now block until the soft-boot killing spree kills us
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exec sleep infinity
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else
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# This is the first boot
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systemd-notify --status="First Boot"
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# Let's upload an fd to the fdstore, so that we can verify fdstore passing works correctly
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T="/dev/shm/fdstore.$RANDOM"
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echo "wuffwuff" >"$T"
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systemd-notify --fd=3 --pid=parent 3<"$T"
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rm "$T"
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survive_sigterm="/dev/shm/survive-sigterm-$RANDOM.sh"
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cat >"$survive_sigterm" <<EOF
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#!/bin/bash
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trap "" TERM
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systemd-notify --ready
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rm "$survive_sigterm"
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exec sleep infinity
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EOF
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chmod +x "$survive_sigterm"
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survive_argv="/dev/shm/survive-argv-$RANDOM.sh"
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cat >"$survive_argv" <<EOF
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#!/bin/bash
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systemd-notify --ready
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rm "$survive_argv"
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exec -a @sleep sleep infinity
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EOF
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chmod +x "$survive_argv"
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# This sets DefaultDependencies=no so that they remain running until the very end, and
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# IgnoreOnIsolate=yes so that they aren't stopped via the "testsuite.target" isolation we do on next boot,
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# and will be killed by the final sigterm/sigkill spree.
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systemd-run --collect --service-type=notify -p DefaultDependencies=no -p IgnoreOnIsolate=yes --unit=testsuite-82-nosurvive-sigterm.service "$survive_sigterm"
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systemd-run --collect --service-type=exec -p DefaultDependencies=no -p IgnoreOnIsolate=yes --unit=testsuite-82-nosurvive.service sleep infinity
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# Configure these transient units to survive the soft reboot - they will not conflict with shutdown.target
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# and it will be ignored on the isolate that happens in the next boot. The first will use argv[0][0] =
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# '@', and the second will use SurviveFinalKillSignal=yes. Both should survive.
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systemd-run --service-type=notify --unit=testsuite-82-survive-argv.service \
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--property SurviveFinalKillSignal=no \
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--property IgnoreOnIsolate=yes \
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--property DefaultDependencies=no \
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--property After=basic.target \
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--property "Conflicts=reboot.target kexec.target poweroff.target halt.target emergency.target rescue.target" \
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--property "Before=reboot.target kexec.target poweroff.target halt.target emergency.target rescue.target" \
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"$survive_argv"
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systemd-run --service-type=exec --unit=testsuite-82-survive.service \
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--property SurviveFinalKillSignal=yes \
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--property IgnoreOnIsolate=yes \
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--property DefaultDependencies=no \
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--property After=basic.target \
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--property "Conflicts=reboot.target kexec.target poweroff.target halt.target emergency.target rescue.target" \
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--property "Before=reboot.target kexec.target poweroff.target halt.target emergency.target rescue.target" \
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sleep infinity
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# Check that we can set up an inhibitor, and that busctl monitor sees the
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# PrepareForShutdownWithMetadata signal and that it says 'soft-reboot'.
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systemd-run --unit busctl.service --service-type=exec --property StandardOutput=file:/run/testsuite82.signal \
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busctl monitor --json=pretty --match 'sender=org.freedesktop.login1,path=/org/freedesktop/login1,interface=org.freedesktop.login1.Manager,member=PrepareForShutdownWithMetadata,type=signal'
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systemd-run --unit inhibit.service --service-type=exec \
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systemd-inhibit --what=shutdown --who=test --why=test --mode=delay \
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sleep infinity
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# Now issue the soft reboot. We should be right back soon.
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touch /run/testsuite82.touch
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systemctl --no-block --check-inhibitors=yes soft-reboot
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# Now block until the soft-boot killing spree kills us
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exec sleep infinity
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fi
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systemd-analyze log-level info
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touch /testok
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systemctl --no-block poweroff
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