Make kairos-sysext be generic enough to include on all flavors

It will not install the systemd-sysext package if the binary is not
there

Signed-off-by: Itxaka <[email protected]>

packages/dracut/sysext/build.yaml

@@ -1,6 +1,6 @@
 image: alpine
 package_dir: "/package"
 steps:
-- mkdir -p /package/etc/systemd/network
 - mkdir -p /package/etc/dracut.conf.d
-- cp -rfv conf/* /package/etc/dracut.conf.d
+- cp files/90-kairos-sysext.conf /package/etc/dracut.conf.d/90-kairos-sysext.conf
+- cp -r files/90kairos-sysext /package/usr/lib/dracut/modules.d/90kairos-sysext

packages/dracut/sysext/collection.yaml

@@ -1,4 +1,4 @@
 packages:
-- name: "sysext"
+- name: "kairos-sysext"
   category: "dracut"
-  version: "0.9"
+  version: "1.0.0"

packages/dracut/sysext/files/90-kairos-sysext.conf

@@ -0,0 +1 @@
+add_dracutmodules+=" kairos-sysext "

packages/dracut/sysext/files/90kairos-sysext/module-setup.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# This module tries to add systemd-sysext module to the initramfs if its in the system, otherwise it does nothing
+
+# called by dracut
+check() {
+    # Return 255 to only include the module, if another module requires it.
+    return 255
+}
+
+# called by dracut
+depends() {
+    # If the binary(s) requirements are not fulfilled the module can't be installed.
+    require_binaries systemd-sysext || return 1
+    echo "systemd-sysext"
+    return 0
+}
+
+# called by dracut
+installkernel() {
+    return 0
+}
+
+# called by dracut
+install() {
+    return 0
+}