From 9a3169efbf1e69d8008e0354429d5a77c8eccd7a Mon Sep 17 00:00:00 2001
From: Andrei Kvapil <kvapss@gmail.com>
Date: Tue, 23 May 2023 12:42:16 +0200
Subject: [PATCH] Support Kernel Build System (Debian 11)

Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
---
 .../linstorsatelliteset_controller.go             | 15 +++++++++++++++
 pkg/k8s/spec/const.go                             |  3 +++
 2 files changed, 18 insertions(+)

diff --git a/pkg/controller/linstorsatelliteset/linstorsatelliteset_controller.go b/pkg/controller/linstorsatelliteset/linstorsatelliteset_controller.go
index 2c935474..f9f163a3 100644
--- a/pkg/controller/linstorsatelliteset/linstorsatelliteset_controller.go
+++ b/pkg/controller/linstorsatelliteset/linstorsatelliteset_controller.go
@@ -1260,12 +1260,18 @@ func daemonSetWithDRBDKernelModuleInjection(ds *apps.DaemonSet, satelliteSet *pi
 		MountPath: kubeSpec.ModulesDir,
 	},
 	)
+	volumeMounts = append(volumeMounts, corev1.VolumeMount{
+		Name:      kubeSpec.UsrLibDirName,
+		MountPath: kubeSpec.UsrLibDirMountPath,
+	},
+	)
 
 	ds.Spec.Template.Spec.InitContainers = []corev1.Container{
 		{
 			Name:            "kernel-module-injector",
 			Image:           satelliteSet.Spec.KernelModuleInjectionImage,
 			ImagePullPolicy: satelliteSet.Spec.ImagePullPolicy,
+			Command:         []string{"/bin/bash", "-c", "find /host/usr/lib -maxdepth 1 -mindepth 1 -exec ln -vs {} /usr/lib \\; 2>/dev/null; exec /entry.sh"},
 			SecurityContext: &corev1.SecurityContext{Privileged: &kubeSpec.Privileged},
 			Env:             env,
 			VolumeMounts:    volumeMounts,
@@ -1294,6 +1300,15 @@ func daemonSetWithDRBDKernelModuleInjection(ds *apps.DaemonSet, satelliteSet *pi
 				},
 			},
 		})
+		ds.Spec.Template.Spec.Volumes = append(ds.Spec.Template.Spec.Volumes, corev1.Volume{
+			Name: kubeSpec.UsrLibDirName,
+			VolumeSource: corev1.VolumeSource{
+				HostPath: &corev1.HostPathVolumeSource{
+					Path: kubeSpec.UsrLibDir,
+					Type: &kubeSpec.HostPathDirectoryType,
+				},
+			},
+		})
 	}
 
 	return ds
diff --git a/pkg/k8s/spec/const.go b/pkg/k8s/spec/const.go
index fe89064b..a9d186ec 100644
--- a/pkg/k8s/spec/const.go
+++ b/pkg/k8s/spec/const.go
@@ -40,6 +40,9 @@ const (
 	LinstorCertDirName          = "linstor-certs"
 	ModulesDir                  = "/lib/modules/" // "/usr/lib/modules/"
 	ModulesDirName              = "modules-dir"
+	UsrLibDir                   = "/usr/lib"
+	UsrLibDirMountPath          = "/host/usr/lib"
+	UsrLibDirName               = "usr-lib-dir"
 	SrcDir                      = "/usr/src"
 	SrcDirName                  = "src-dir"
 	SysDir                      = "/sys/"