Executing Roslaunch commands inside a running container

edit

I am trying to run autoware with carla. Autoware is running as a container in linux machine. Now after starting the container, with the following commands

docker run
-d
-it --rm
--volume=$(pwd)/autoware-contents:/home/autoware/autoware-contents:ro
--env="DISPLAY=${DISPLAY}"
--privileged
--net=host
$RUNTIME
carla-autoware:latest, the container is up

now I want to launch my launch files to start the auotware nodes using

roslaunch carla_autoware_agent carla_autoware_agent.launch town:=Town04 synchronous_mode:=true

with out entering into the container so I tried to run with docker exec, I am getting the following error

OCI runtime exec failed: exec failed: unable to start container process: exec: "roslaunch": executable file not found in $PATH: unknown

How do I run the roslaunch command in a linux machine without entering into the container either using shell script.