About ROS2 installation and docker environment usage

Why use Docker?

Docker is a container that can be used to load images. I can use Docker to package my basic environment into an image, and everyone can use this image.

While learning ROS, I found that there were many problems during the installation process. I believe that many students were blocked by the problems during installation, so I thought that I could make a ROS image for myself and everyone to use. So I chose docker, and then I found that there were ready-made images - it was easy to get started.

After improvement, it can be packaged into its own image.

Docker installation

1 Update software list

sudo apt-get update

2 Install Docker

sudo apt-get install -y docker.io

3 Configure startup

systemctl start docker
 
systemctl enable docker

4 Check if the installation is successful

sudo docker --version 

Pull the ROS image

I am using the foxy version

1 Download the image file, more than 3G, you need to wait for a while

sudo docker pull osrf/ros:foxy-desktop 

s2 View mirror information

sudo docker images

3 Start the image

sudo docker run -it osrf/ros:foxy-desktop

4. Enjoy your Rosé

This step displays the help information of ROS2. ROS2 has been installed. Isn’t it fast? ! !

ros2 -h 

Run ROS turtle

ros2 run turtlesim turtlesim_node

Open a new terminal and restart the image to enter the docker environment

sudo docker run -it osrf/ros:foxy-desktop
ros2 run turtlesim turtle_teleop_key

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