File _service:extract_file:warewulf-vnfs.zstd.patch of Package warewulf-vnfs

From c77b81316f9980aee44eb097f3fddb1782fdbbd7 Mon Sep 17 00:00:00 2001
From: Ben Allen <bsallen@alcf.anl.gov>
Date: Tue, 30 Aug 2022 21:43:01 +0000
Subject: [PATCH] Add Support for Zstandard Compressed Kernel Modules

Newer distros (eg. OpenSUSE 15.4) are shipping with zstd compressed
kernel modules. Currently busybox does not have support for zstd.
Thus we add a new configure argument in provision `--with-local-kmod`
to pull in kmod from the build host to the initramfs and symlink it to
modprobe, etc. When this option is used we drop the module
utilites from the busybox config to save a bit of space.

Also update wwbootstrap to look for zst suffix kernel modules, and
update the check_compression logic a bit to look for each compression
type.
---
 .gitignore                                   |    3 +-
 provision/configure.ac                       |    2 +
 provision/initramfs/Makefile.am              |   24 +-
 provision/initramfs/busybox_nokmod.config.in | 1203 ++++++++++++++++++
 provision/warewulf-provision.spec.in         |    4 +-
 vnfs/bin/wwbootstrap                         |   41 +-
 6 files changed, 1264 insertions(+), 13 deletions(-)
 create mode 100644 provision/initramfs/busybox_nokmod.config.in

diff --git a/vnfs/bin/wwbootstrap b/vnfs/bin/wwbootstrap
index b4dc8ad8..08b7b2e5 100755
--- a/vnfs/bin/wwbootstrap
+++ b/vnfs/bin/wwbootstrap
@@ -224,7 +224,10 @@ if ($config->get("drivers")) {
     my %included_files;
     my @driver_files;
     my $module_count = 0;
-    my $check_compression;
+    my $check_compression_xz;
+    my $check_compression_gz;
+    my $check_compression_zst;
+    my $check_compression_bz2;
 
     mkpath("$tmpdir/initramfs/lib/modules/$opt_kversion");
 
@@ -238,10 +241,16 @@ if ($config->get("drivers")) {
                 my $path = $1;
                 my @deps = split(/\s+/, $2);
                 my $name = basename($path);
-                if  ($name =~ /\.ko\.(xz|bz2|gz)$/) {
-                    $check_compression = 1;
+                if  ($name =~ /\.ko\.xz$/) {
+                    $check_compression_xz = 1;
+                } elsif  ($name =~ /\.ko\.gz$/) {
+                    $check_compression_gz = 1;
+                } elsif  ($name =~ /\.ko\.zst$/) {
+                    $check_compression_zst = 1;
+                } elsif  ($name =~ /\.ko\.bz2$/) {
+                    $check_compression_bz2 = 1;
                 }
-                $name =~ s/\.ko(\.(xz|bz2|gz))?$//;
+                $name =~ s/\.ko(\.(xz|bz2|gz|zst))?$//;
                 $mod_path{"$name"} = $path;
                 push(@mod_files, $path);
                 if (@deps) {
@@ -327,10 +336,28 @@ if ($config->get("drivers")) {
         &dprint("Running depmod\n");
         system("/sbin/depmod -a -b $tmpdir/initramfs $opt_kversion");
 
-        if ($check_compression) {
-            my $dependencies = `ldd /sbin/depmod`;
+        my $dependencies = `ldd /sbin/depmod`;
+        if ($check_compression_xz) {
             if (index($dependencies, "liblzma") == -1) {
-                &wprint("Using compressed kernel modules, but depmod doesn't support it\n");
+                &wprint("Using xz compressed kernel modules, but depmod doesn't support it\n");
+                &wprint("-> bootstrap will likely fail\n");
+            }
+        }
+        if ($check_compression_gz) {
+            if (index($dependencies, "libz") == -1) {
+                &wprint("Using gzip compressed kernel modules, but depmod doesn't support it\n");
+                &wprint("-> bootstrap will likely fail\n");
+            }
+        }
+        if ($check_compression_zst) {
+            if (index($dependencies, "libzstd") == -1) {
+                &wprint("Using zstd compressed kernel modules, but depmod doesn't support it\n");
+                &wprint("-> bootstrap will likely fail\n");
+            }
+        }
+        if ($check_compression_bz2) {
+            if (index($dependencies, "libbz2") == -1) {
+                &wprint("Using bzip2 compressed kernel modules, but depmod doesn't support it\n");
                 &wprint("-> bootstrap will likely fail\n");
             }
         }