add kill process method when docker-compose down command

cmd/compose/down.go

@@ -88,12 +88,20 @@ func runDown(ctx context.Context, dockerCli command.Cli, backend api.Service, op
 		timeoutValue := time.Duration(opts.timeout) * time.Second
 		timeout = &timeoutValue
 	}
-	return backend.Down(ctx, name, api.DownOptions{
+	err = backend.Down(ctx, name, api.DownOptions{
 		RemoveOrphans: opts.removeOrphans,
 		Project:       project,
 		Timeout:       timeout,
 		Images:        opts.images,
 		Volumes:       opts.volumes,
 		Services:      services,
 	})
+	if err != nil {
+		return err
+	}
+	err = killProcessesUsingExposedPorts(project)
+	if err != nil {
+		return err
+	}
+	return nil
 }

cmd/compose/port_cleanup.go

@@ -0,0 +1,44 @@
+package compose
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+func killProcessesUsingExposedPorts(project *types.Project) error {
+	for _, service := range project.Services {
+		for _, port := range service.Ports {
+			exposedPort := port.Published
+			if exposedPort != "" {
+				err := killProcessOnPort(exposedPort)
+				if err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+func killProcessOnPort(port string) error {
+	cmd := exec.Command("lsof", "-t", "-i", fmt.Sprintf(":%s", port))
+	output, err := cmd.Output()
+	if err != nil {
+		return fmt.Errorf("failed to find process using port %s: %v", port, err)
+	}
+
+	pid := strings.TrimSpace(string(output))
+	if pid == "" {
+		return nil
+	}
+
+	killCmd := exec.Command("kill", "-9", pid)
+	err = killCmd.Run()
+	if err != nil {
+		return fmt.Errorf("failed to kill process %s on port %s: %v", pid, port, err)
+	}
+
+	fmt.Printf("Killed process %s using port %s\n", pid, port)
+	return nil
+}