[Question]bash: ros2: command not found

[badguyisme]

Hi, I pull and run the docker image osrf/ros:humble-desktop-full successfully. When I input ros2 command in the container, everything seems ok

However, when I open another terminal and using docker exec command to reach the same container, bash cannot find command ros2.

Why is this happening? Hope to be answered, thank you!

[mikaelarguedas]

Indeed, you need to source the ROS environment to have access to the ROS tools:

source /opt/ros/humble/setup.bash

The entrypoint is only executed when starting the container not when logging into it: https://docs.docker.com/engine/reference/builder/#entrypoint

[badguyisme]

It works. Thanks for your helping.