Add overlaybd sysext mangle script to start the services automatically

chewi · chewi · commit 55e738e9c2c5 · 2025-10-28T16:15:37.000Z
This is consistent with other sysexts. Note that the sysext must be
enabled at boot time for this to happen, otherwise you need to call
`systemd-tmpfiles --create` and `systemctl daemon-reload` first.

Signed-off-by: James Le Cuirot &lt;jlecuirot@microsoft.com&gt;
diff --git a/build_library/sysext_mangle_flatcar-overlaybd b/build_library/sysext_mangle_flatcar-overlaybd
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -euo pipefail
+rootfs="${1}"
+
+pushd "${rootfs}"
+
+pushd ./usr/lib/systemd/system
+mkdir -p "multi-user.target.d"
+{ echo "[Unit]"; echo "Upholds=overlaybd-tcmu.service overlaybd-snapshotter.service"; } > "multi-user.target.d/10-overlaybd.conf"
+popd
diff --git a/changelog/bugfixes/2025-10-01-overlaybd-autostart.md b/changelog/bugfixes/2025-10-01-overlaybd-autostart.md
@@ -0,0 +1 @@
+- Configured the services in the overlaybd sysext to start automatically like the other sysexts. Note that the sysext must be enabled at boot time for this to happen, otherwise you need to call `systemd-tmpfiles --create` and `systemctl daemon-reload` first.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+- Configured the services in the overlaybd sysext to start automatically like the other sysexts. Note that the sysext must be enabled at boot time for this to happen, otherwise you need to call `systemd-tmpfiles --create` and `systemctl daemon-reload` first.