File Add-lib-modules-opt_kversion-sysctl.conf-to-initfs-if-present.patch of Package warewulf

From: Egbert Eich <eich@suse.com>
Date: Thu Oct 14 13:51:35 2021 +0200
Subject: Add /lib/modules/$opt_kversion/sysctl.conf to initfs if present
Patch-mainline: Not yet
Git-commit: 080e7062a53926170670aecb74e4921c8878f5cb
References: 

Kernels may ship their own sysctl.conf with settings specific
to the respective kernel version. This is shipped with the
kernel itself in the module directory.

Signed-off-by: Egbert Eich <eich@suse.com>
---
 provision/initramfs/capabilities/provision-vnfs/70-kernelmodules | 4 ++++
 vnfs/bin/wwbootstrap                                             | 6 ++++++
 2 files changed, 10 insertions(+)
diff --git a/provision/initramfs/capabilities/provision-vnfs/70-kernelmodules b/provision/initramfs/capabilities/provision-vnfs/70-kernelmodules
index 7f763f7..2ec5ffb 100644
--- a/provision/initramfs/capabilities/provision-vnfs/70-kernelmodules
+++ b/provision/initramfs/capabilities/provision-vnfs/70-kernelmodules
@@ -29,4 +29,8 @@ if [ -x "${NEWROOT}${DEPMOD}" ]; then
     chroot "${NEWROOT}" /sbin/depmod -a
 fi
 
+if [ -e "${NEWROOT}"/lib/modules/"${KVERSION}"/sysctl.conf ]; then
+    ln -s /lib/modules/"${KVERSION}"/sysctl.conf "${NEWROOT}"/boot/sysctl.conf-"${KVERSION}"
+fi
+    
 exit 0
diff --git a/vnfs/bin/wwbootstrap b/vnfs/bin/wwbootstrap
index 149f6f4..e509ee3 100644
--- a/vnfs/bin/wwbootstrap
+++ b/vnfs/bin/wwbootstrap
@@ -260,6 +260,12 @@ if ($config->get("drivers")) {
     copy("$opt_chroot/lib/modules/$opt_kversion/modules.order", "$tmpdir/initramfs/lib/modules/$opt_kversion/modules.order");
     copy("$opt_chroot/lib/modules/$opt_kversion/modules.builtin", "$tmpdir/initramfs/lib/modules/$opt_kversion/modules.builtin");
 
+    if (-e "$opt_chroot/lib/modules/$opt_kversion/sysctl.conf" ) {
+	copy("$opt_chroot/lib/modules/$opt_kversion/sysctl.conf", "$tmpdir/initramfs/lib/modules/$opt_kversion/sysctl.conf");
+    } elsif ( -e "$opt_chroot/boot/sysctl.conf-$opt_kversion" ) {
+        copy("$opt_chroot/boot/sysctl.conf-$opt_kversion", "$tmpdir/initramfs/lib/modules/$opt_kversion/sysctl.conf");
+    }
+
     if ($module_count > 0) {
         &nprint("Number of drivers included in bootstrap: $module_count\n");
         &dprint("Running depmod\n");