Camera preview screen

Briefly introduce how to enter the container and preview the camera image through the Docker script (for detailed Docker content, please refer to the Docker course).

Install docker

Use the Docker official script to install Docker, which is to install the latest version of Docker.

curl -fsSL https://get.docker.com -o get-docker.sh

xxxxxxxxxx
sudo sh get-docker.sh

Got image

Just choose one of the two methods below.

Online

xxxxxxxxxx
sudo docker pull yahboomtechnology/ros-melodic:usb_cam

Offline

xxxxxxxxxx
sudo docker load -i yahboomtechnology-ros-melodic-usb-cam.tar

Enter Docker

Write Docker script file--DockerRos.sh

xxxxxxxxxx
sudo nano DockerRos.sh

For Raspberry Pi and Jetson

Add following content.

xxxxxxxxxx
#!/bin/bash
xhost +
docker run -it \
--net=host \
--env="DISPLAY" \
--env="QT_X11_NO_MITSHM=1" \
-v /tmp/.X11-unix:/tmp/.X11-unix \
--security-opt apparmor:unconfined \
--device=/dev/video0 \
yahboomtechnology/ros-melodic:usb_cam /bin/bash

Input following command to add executable permissions

xxxxxxxxxx
sudo chmod +x DockerRos.sh 

Input following command to run script file

xxxxxxxxxx
sudo ./DockerRos.sh

Preview camera

After entering Docker, Input following command to enter the user directory

xxxxxxxxxx
cd

xxxxxxxxxx
python3 CameraPreview.py

Multiple terminals: enter the same Docker

Run Docker through a script: If it has been started through a docker script, you do not need to enter this command again.

xxxxxxxxxx
sudo ./DockerRos.sh

View running containers

xxxxxxxxxx
sudo docker ps

Enter the running container: CONTAINER ID can be the first four digits

xxxxxxxxxx
sudo docker exec -it [CONTAINER ID] /bin/bash