[alpine/netboot] fix rdnssd until -r5 of rdnssd is installed

alpine-rebuild-initramfs.sh

@@ -12,7 +12,7 @@ set -x
 SSH_KEYS=$1; shift
 
 MAJOR_VERSION=3.13
-MINOR_VERSION=2
+MINOR_VERSION=5
 IMAGE=alpine-minirootfs-$MAJOR_VERSION.$MINOR_VERSION-x86_64.tar.gz
 
 RESOLVCONF=/etc/resolv.conf
@@ -63,6 +63,21 @@ run_root rc-update add networking
 run_root rc-update add hostname
 run_root sed -i 's/root:!::0:::::/root:*::0:::::/' /etc/shadow
 
+# Fix not yet updated initscript for rdnssd
+sudo tee "$rootfs_tmpdir/etc/init.d/rdnssd" <<EOF
+#!/sbin/openrc-run
+
+supervisor=supervise-daemon
+command=/usr/sbin/rdnssd
+command_args="-H /etc/rdnssd/resolvconf"
+command_args_foreground="-f"
+
+start_pre() {
+        checkpath -d -m 0755 -o nobody:nobody -q /run/rdnssd
+}
+
+EOF
+
 sudo tee "$rootfs_tmpdir/etc/network/interfaces" <<EOF
 auto lo
 iface lo inet loopback