From cd7cf0f2b69c5c77621e2f7032424b7041778d31 Mon Sep 17 00:00:00 2001
From: Mikhail Klementev <blame@dumpstack.io>
Date: Thu, 6 Apr 2023 21:56:22 +0000
Subject: [PATCH] Cache kernel package dependencies

---
 kernel.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel.go b/kernel.go
index 37d1187..a12bb0b 100644
--- a/kernel.go
+++ b/kernel.go
@@ -346,6 +346,11 @@ func generateBaseDockerImage(registry string, commands []config.DockerCommand,
 			d += "RUN yum -y install grub2-tools-minimal " +
 				"elfutils-libelf-devel\n"
 		}
+
+		// Cache kernel package dependencies
+		d += "export PKGNAME=$(yum search kernel-devel --showduplicates | grep '^kernel-devel' | cut -d ' ' -f 1 | head -n 1); " +
+			"yum -y install $PKGNAME $(echo $PKGNAME | sed 's/-devel//'); " +
+			"yum -y remove $PKGNAME $(echo $PKGNAME | sed 's/-devel//')\n"
 	default:
 		err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
 		return