Configuration

1. cont_manager: docker or podman. You need to choose one of container managers to operate this shell script.
   (In podman's case, you have to edit '/etc/containers/registries.conf' to put in 'unqualified-search-registries = ["docker.io"]'
2. ROS_DISTRO: ROS Distribution is a versioned set of ROS packages. (ex. noetic, humble, or jazzy)
3. bundles: how many packages are in the default docker image. (ex. desktop, simulation, or desktop-full)
   (You have to check the tag of docker images osrf/ros OR ros)
4. ws_name_tag: folder name tag to differentiate from other folders. "examle_ws" is a default setting.
5. gpu: gpu setting for a container. In nvidia's case, you have to install nvidia container runtime from these directions.
6. port: This is for Unity connection based on this
7. multi_distro: You can launch a container for a ROS_DISTRO. This can make multiple workspaces with the same ROS_DISTRO.
   (ex. test1_ws and test2_ws with ros jazzy. It is a separate machine with shared network.)
8. multi_ws: This can make multiple workspaces with the same workspace.
   (ex. test1_ws-1 and test1_ws-2 with ros jazzy.)