Docker container acutronicrobotics/gym-gazebo2 installed, what to do next?
Hello, I am new to docker
I have installed the docker container by a pull request from https://hub.docker.com/r/acutronicrobotics/gym-gazebo2. It got installed correctly as shown below:
duttonide@ubuntu:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 5415654e5aef 12 hours ago 63.3MB
ubuntu bionic 2c047404e52d 3 weeks ago 63.3MB
hello-world latest bf756fb1ae65 11 months ago 13.3kB
acutronicrobotics/gym-gazebo2 latest b5ccf2feaca5 18 months ago 3.82GB
When I run the docker I get the following errors:
duttonide@ubuntu:~$ docker run -it acutronicrobotics/gym-gazebo2
root@b47af471b8bf:~/gym-gazebo2# cd ~/ros2learn/experiments/examples/MARA
bash: cd: /root/ros2learn/experiments/examples/MARA: No such file or directory
root@b47af471b8bf:~/gym-gazebo2# python3 train_ppo2_mlp.py
python3: can't open file 'train_ppo2_mlp.py': [Errno 2] No such file or directory
root@b47af471b8bf:~/gym-gazebo2# exit
exit
The official github repo that shows the docker file installation here: https://github.com/AcutronicRobotics/ros2learn/blob/dashing/docker/README.md is quite different.
On trying to install it from here, on running the following code:
cd ~ && git clone -b dashing https://github.com/AcutronicRobotics/ros2learn
cd ~/ros2learn/docker
docker build -t r2l .
I got the following errors:
[0.192s] WARNING:colcon.colcon_ros.prefix_path.catkin:The path
'home/ros2_example_ws/install/examples_rclcpp_minimal_action_client' in the environment variable
CMAKE_PREFIX_PATH doesn't exist
--- stderr: composition
CMake Error at CMakeLists.txt:133 (find_package):
By not providing "Findlaunch_testing_ament_cmake.cmake" in
CMAKE_MODULE_PATH this project has asked CMake to find a package
configuration file provided by "launch_testing_ament_cmake", but CMake did
not find one.
Could not find a package configuration file provided by
"launch_testing_ament_cmake" with any of the following names:
launch_testing_ament_cmakeConfig.cmake
launch_testing_ament_cmake-config.cmake
Add the installation prefix of "launch_testing_ament_cmake" to
CMAKE_PREFIX_PATH or set "launch_testing_ament_cmake_DIR" to a directory
containing one of the above files. If "launch_testing_ament_cmake"
provides a separate development package or SDK, be sure it has been
installed.
Then I followed the solutions suggested here: https://answers.ros.org/question/330417/ros2-issues-building-the-composition-demo-found-in-ros2demos/.
The same issue persists may be because the file in the docker should contain all these files which brings me back to the original docker pull, now that I have it what should I do next?
Please help with this. Thanks in advance.
Asked by duttonide on 2020-12-20 14:34:52 UTC
Comments
Just to be sure. Have you done the git clone inside the container?
Asked by Solrac3589 on 2020-12-21 02:17:59 UTC
In the case the issue is missing dependencies, a fast trick for me should do to do a new imaged based on the one you are using here (starting with FROM acutronicrobotics/gym-gazebo2:latest if I am not wrong) and add the dependencies. You can later keep this image for yourself or upload it on docker hub!
Asked by Solrac3589 on 2020-12-21 02:22:23 UTC
I had downloaded it and i think i kinda succesfully loaded it.
The difference between yours and mines is that I amb actually using the example already loaded in the container instead of cloning it again.
What I saw from the dockerhub web you posted here.
Hope is that.
PD: Remember you should change DDS to OpenSpice probably before executing it (it is said also in dockerhub)
Asked by Solrac3589 on 2020-12-21 02:38:50 UTC