feat(systemd-sysext): introducing the systemd-sysext module

Introducing the systemd-sysext module.

modules.d/01systemd-sysext/module-setup.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+# This file is part of dracut.
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Prerequisite check(s) for module.
+check() {
+
+    # If the binary(s) requirements are not fulfilled the module can't be installed.
+    require_binaries systemd-sysext || return 1
+
+    # Return 255 to only include the module, if another module requires it.
+    return 255
+
+}
+
+# Module dependency requirements.
+depends() {
+
+    # This module has external dependency on other module(s).
+    echo systemd
+    # Return 0 to include the dependent module(s) in the initramfs.
+    return 0
+
+}
+
+# Install the required file(s) and directories for the module in the initramfs.
+install() {
+
+    inst_multiple -o \
+        "/usr/lib/extensions/*" \
+        "/usr/lib/extension-release.d/extension-release.*" \
+        "$systemdsystemunitdir"/systemd-sysext.service \
+        "$systemdsystemunitdir/systemd-sysext.service.d/*.conf" \
+        systemd-sysext
+
+    # Enable systemd type unit(s)
+    $SYSTEMCTL -q --root "$initdir" enable systemd-sysext.service
+
+    # Install the hosts local user configurations if enabled.
+    if [[ $hostonly ]]; then
+        inst_multiple -H -o \
+            "/etc/extensions/*" \
+            "$systemdsystemconfdir"/systemd-sysext.service \
+            "$systemdsystemconfdir/systemd-sysext.service.d/*.conf"
+    fi
+
+}

pkgbuild/dracut.spec

@@ -334,6 +334,7 @@ echo 'dracut_rescue_image="yes"' > $RPM_BUILD_ROOT%{dracutlibdir}/dracut.conf.d/
 %{dracutlibdir}/modules.d/01systemd-repart
 %{dracutlibdir}/modules.d/01systemd-resolved
 %{dracutlibdir}/modules.d/01systemd-rfkill
+%{dracutlibdir}/modules.d/01systemd-sysext
 %{dracutlibdir}/modules.d/01systemd-sysctl
 %{dracutlibdir}/modules.d/01systemd-sysusers
 %{dracutlibdir}/modules.d/01systemd-timedated