Advertise SINGLE_NODE_MULTI_WRITER capabilities

Author: chrishenzie

pkg/hostpath/controllerserver.go

@@ -797,6 +797,7 @@ func (hp *hostPath) getControllerServiceCapabilities() []*csi.ControllerServiceC
 			csi.ControllerServiceCapability_RPC_LIST_VOLUMES,
 			csi.ControllerServiceCapability_RPC_CLONE_VOLUME,
 			csi.ControllerServiceCapability_RPC_VOLUME_CONDITION,
+			csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
 		}
 		if hp.config.EnableVolumeExpansion {
 			cl = append(cl, csi.ControllerServiceCapability_RPC_EXPAND_VOLUME)

pkg/hostpath/nodeserver.go

@@ -382,6 +382,13 @@ func (hp *hostPath) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCap
 				},
 			},
 		},
+		{
+			Type: &csi.NodeServiceCapability_Rpc{
+				Rpc: &csi.NodeServiceCapability_RPC{
+					Type: csi.NodeServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
+				},
+			},
+		},
 	}
 	if hp.config.EnableVolumeExpansion {
 		caps = append(caps, &csi.NodeServiceCapability{