Merge pull request #35483 from thaJeztah/disallow-nfs-backing-for-overlay

Disallow overlay/overlay2 on top of NFS

daemon/graphdriver/overlay/overlay.go

@@ -128,7 +128,7 @@ func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (grap
 	}
 
 	switch fsMagic {
-	case graphdriver.FsMagicAufs, graphdriver.FsMagicBtrfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicZfs, graphdriver.FsMagicEcryptfs:
+	case graphdriver.FsMagicAufs, graphdriver.FsMagicBtrfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicZfs, graphdriver.FsMagicEcryptfs, graphdriver.FsMagicNfsFs:
 		logrus.Errorf("'overlay' is not supported over %s", backingFs)
 		return nil, graphdriver.ErrIncompatibleFS
 	}

daemon/graphdriver/overlay2/overlay.go

@@ -146,7 +146,7 @@ func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (grap
 
 	// check if they are running over btrfs, aufs, zfs, overlay, or ecryptfs
 	switch fsMagic {
-	case graphdriver.FsMagicAufs, graphdriver.FsMagicZfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicEcryptfs:
+	case graphdriver.FsMagicAufs, graphdriver.FsMagicZfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicEcryptfs, graphdriver.FsMagicNfsFs:
 		logrus.Errorf("'overlay2' is not supported over %s", backingFs)
 		return nil, graphdriver.ErrIncompatibleFS
 	case graphdriver.FsMagicBtrfs: