add /etc/dracut.conf.d

Makefile

@@ -37,6 +37,7 @@ ifeq (1,${WITH_SWITCH_ROOT})
 	install -m 0755 modules.d/99base/switch_root $(DESTDIR)$(sbindir)/switch_root
 endif
 	install -m 0644 dracut.conf $(DESTDIR)$(sysconfdir)/dracut.conf
+	mkdir -p $(DESTDIR)$(sysconfdir)/dracut.conf.d
 	install -m 0755 dracut-functions $(DESTDIR)$(pkglibdir)/dracut-functions
 	cp -arx modules.d $(DESTDIR)$(pkglibdir)
 	install -m 0644 dracut.8 $(DESTDIR)$(mandir)/man8

dracut

@@ -94,6 +94,7 @@ while (($# > 0)); do
 	--debug) debug="yes";;
 	-v|--verbose) beverbose="yes";;
 	-c|--conf) conffile="$2"; shift;;
+	--confdir) confdir="$2"; shift;;
 	-l|--local) allowlocal="yes" ;;
 	-H|--hostonly) hostonly_l="yes" ;;
 	-i|--include) include_src="$2"; include_target="$3"; shift 2;;
@@ -122,6 +123,19 @@ if [[ ! -f $conffile ]]; then
     [[ $allowlocal ]] && conffile="$dracutbasedir/dracut.conf"
 fi
 
+if [[ ! -d $confdir ]]; then
+    [[ $allowlocal ]] || confdir="/etc/dracut.conf.d"
+    [[ $allowlocal ]] && confdir="$dracutbasedir/dracut.conf.d"
+fi
+
+# source our config dir
+if [ "$confdir" ] && [  -d "$confdir" ]; then
+    local f
+    for f in "$confdir"/*.conf; do 
+	[ -e "$f" ] && . "$f"
+    done
+fi
+
 # source our config file
 [[ -f $conffile ]] && . "$conffile"
 

dracut.8

@@ -75,6 +75,11 @@ specify configuration file to use.
 Default: 
 .IR /etc/dracut.conf
 .TP
+.BR \-\-confdir " \fIDIR\fR"
+specify configuration directory to use.
+Default: 
+.IR /etc/dracut.conf.d
+.TP
 .BR \-l ", " \-\-local
 local mode. Use modules from the current working
 directory instead of the system-wide installed in

dracut.spec

@@ -180,6 +180,7 @@ rm -rf $RPM_BUILD_ROOT
 %dir %{_datadir}/dracut
 %{_datadir}/dracut/dracut-functions
 %config(noreplace) /etc/dracut.conf
+%dir /etc/dracut.conf.d
 %{_mandir}/man8/dracut.8*
 %{_mandir}/man5/dracut.conf.5*
 %{_datadir}/dracut/modules.d/00dash