From d96cc013e8a048884bc4cdfbd42f9b4a51fc2c2f Mon Sep 17 00:00:00 2001
From: Souvanick <souvanick.pal.choudhury@hpe.com>
Date: Mon, 25 May 2026 20:41:40 +0530
Subject: [PATCH] CON-4687: Code change to include MDcache for nfs pod to
 handle symbolic link issue

Signed-off-by: Souvanick <souvanick.pal.choudhury@hpe.com>
---
 pkg/flavor/kubernetes/nfs.go      | 11 +++++++++++
 pkg/flavor/kubernetes/nfs_test.go | 16 ++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/pkg/flavor/kubernetes/nfs.go b/pkg/flavor/kubernetes/nfs.go
index 02513489..30bc9d46 100644
--- a/pkg/flavor/kubernetes/nfs.go
+++ b/pkg/flavor/kubernetes/nfs.go
@@ -316,6 +316,7 @@ NFS_Core_Param
   NFS_Protocols= 4;
   NFS_Port = 2049;
   fsid_device = false;
+  fsid_type = UUID;
 }
 NFSv4
 {
@@ -323,6 +324,14 @@ NFSv4
   UseGetpwnam = true;
   DomainName = "REPLACE_DOMAIN";
 }
+MDCACHE
+{
+  Dir_Chunk = 0;
+  Entries_HWMark = 50000;
+  LRU_Run_Interval = 90;
+  Cache_FDs = false;
+  Use_Getattr_Directory_Invalidation = true;
+}
 EXPORT
 {
   Export_Id = 716;
@@ -333,6 +342,8 @@ EXPORT
   Transports = TCP;
   Protocols = 4;
   SecType = "sys";
+  Delegations = false;
+  Attr_Expiration_Time = -1;
   FSAL {
       Name = VFS;
   }
diff --git a/pkg/flavor/kubernetes/nfs_test.go b/pkg/flavor/kubernetes/nfs_test.go
index 2aea75eb..ecb52795 100644
--- a/pkg/flavor/kubernetes/nfs_test.go
+++ b/pkg/flavor/kubernetes/nfs_test.go
@@ -102,6 +102,22 @@ func TestCreateConfigMap(t *testing.T) {
 	configMap, err := flavor.kubeClient.CoreV1().ConfigMaps(defaultNFSNamespace).Get(context.Background(), nfsConfigMap, metav1.GetOptions{})
 	assert.Nil(t, err)
 	assert.Equal(t, configMap.ObjectMeta.Name, nfsConfigMap)
+	ganeshaConfig, ok := configMap.Data[nfsConfigFile]
+	assert.True(t, ok)
+	assert.NotEmpty(t, ganeshaConfig)
+
+	// Validate domain substitution
+	assert.Contains(t, ganeshaConfig, `DomainName = "testdomain.com";`)
+	assert.NotContains(t, ganeshaConfig, "REPLACE_DOMAIN")
+
+	// Validate key NFS and MDCACHE defaults
+	assert.Contains(t, ganeshaConfig, "NFS_Protocols= 4;")
+	assert.Contains(t, ganeshaConfig, "MDCACHE")
+	assert.Contains(t, ganeshaConfig, "Dir_Chunk = 0;")
+	assert.Contains(t, ganeshaConfig, "Entries_HWMark = 50000;")
+	assert.Contains(t, ganeshaConfig, "LRU_Run_Interval = 90;")
+	assert.Contains(t, ganeshaConfig, "Cache_FDs = false;")
+	assert.Contains(t, ganeshaConfig, "Use_Getattr_Directory_Invalidation = true;")
 }
 
 func TestGetNFSSpec(t *testing.T) {