added launchfile

launch/robot.launch.py

+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""Launch sync and swarm simulation"""
+
+import launch
+from launch_ros.substitutions import ExecutableInPackage
+import socket
+
+
+def generate_launch_description():
+    hostname = socket.gethostname()
+    interface = [
+        ExecutableInPackage(
+            package='balboa_lowlevel',
+            executable='balboa_interface'
+        ),
+        '__ns:=/{}/balboa'.format(hostname),
+    ]
+
+    camera_streaming = [
+        ExecutableInPackage(
+            package='camera_streaming',
+            executable='camera_streaming'),
+        ]
+
+    executables_list = [interface, camera_streaming]
+
+    processes = [
+        launch.actions.ExecuteProcess(
+            cmd=executable, output='screen')
+        for executable in executables_list
+    ]
+
+    return launch.LaunchDescription(
+        processes + [
+            launch.actions.RegisterEventHandler(
+                event_handler=launch.event_handlers.OnProcessExit(
+                    target_action=process,
+                    on_exit=[launch.actions.EmitEvent(
+                        event=launch.events.Shutdown())],
+                ))
+            for process in processes
+        ]
+    )