added node name and status

.changelog/18625.txt

@@ -1,4 +1,5 @@
 ```release-note:improvement
-Adds flag -append-filename (which works on two values version and dc) to consul snapshot save command.
-Adding the flag -append-filename version,dc will add consul version and consul datacenter in the file name given in the snapshot save command before the file extension.
+Adds flag -append-filename (which works on values version, dc, node and status) to consul snapshot save command.
+Adding the flag -append-filename version,dc,node,status will add consul version, consul datacenter, node name and leader/follower
+(status) in the file name given in the snapshot save command before the file extension.
 ```

command/snapshot/save/snapshot_save.go

@@ -36,7 +36,7 @@ type cmd struct {
 func (c *cmd) getAppendFileNameFlag() *flag.FlagSet {
 	fs := flag.NewFlagSet("", flag.ContinueOnError)
 	fs.Var(&c.appendFileNameFlag, "append-filename", "Append filename flag takes two possible values. "+
-		"1. version, 2. dc. It appends consul version and datacenter to filename given in command")
+		"1. version, 2. dc. 3. node 5. status. It appends consul version and datacenter to filename given in command")
 	return fs
 }
 
@@ -99,6 +99,29 @@ func (c *cmd) Run(args []string) int {
 			}
 		}
 
+		if slices.Contains(appendFileNameFlags, "node") {
+			if config, ok := agentSelfResponse["Config"]; ok {
+				if nodeName, ok := config["NodeName"]; ok {
+					fileNameWithoutExt = fileNameWithoutExt + "-" + nodeName.(string)
+				}
+			}
+		}
+
+		if slices.Contains(appendFileNameFlags, "status") {
+			if status, ok := agentSelfResponse["Stats"]; ok {
+				if config, ok := status["consul"]; ok {
+					configMap := config.(map[string]interface{})
+					if leader, ok := configMap["leader"]; ok {
+						if leader == "true" {
+							fileNameWithoutExt = fileNameWithoutExt + "-" + "leader"
+						} else {
+							fileNameWithoutExt = fileNameWithoutExt + "-" + "follower"
+						}
+					}
+				}
+			}
+		}
+
 		//adding extension back
 		file = fileNameWithoutExt + fileExt
 	}

command/snapshot/save/snapshot_save_test.go

@@ -88,12 +88,21 @@ func TestSnapshotSaveCommandWithAppendFileNameFlag(t *testing.T) {
 	dir := testutil.TempDir(t, "snapshot")
 	file := filepath.Join(dir, "backup.tgz")
 	args := []string{
-		"-append-filename=version,dc",
+		"-append-filename=version,dc,node,status",
 		"-http-addr=" + a.HTTPAddr(),
 		file,
 	}
 
-	newFilePath := filepath.Join(dir, "backup"+"-"+a.Config.Version+"-"+a.Config.Datacenter+".tgz")
+	stats := a.Stats()
+
+	status := "follower"
+
+	if stats["consul"]["leader"] == "true" {
+		status = "leader"
+	}
+
+	newFilePath := filepath.Join(dir, "backup"+"-"+a.Config.Version+"-"+a.Config.Datacenter+
+		"-"+a.Config.NodeName+"-"+status+".tgz")
 
 	code := c.Run(args)
 	if code != 0 {