What are the methods for troubleshooting Docker issues?

When encountering Docker failure, the following methods can be used for troubleshooting:

1. View Docker logs: Use the command “docker logs ” to check the logs of Docker container, in order to see if there are any errors or exceptions occurred during container running.
2. Check the status of Docker: Use the command “docker ps -a” to view the status of Docker containers, and confirm whether the containers are running properly or have stopped.
3. Check the Docker daemon: Use the command “docker info” to view the status of the Docker daemon and confirm if it is running.
4. Restarting the Docker service: Use the command sudo service docker restart to restart the Docker service and resolve common issues.
5. Clean up Docker cache: Use the command “docker system prune” to remove unnecessary images, containers, and networks in the Docker system in order to free up resources and address potential issues.
6. Check the network connection by using the command “docker network ls” to see the status of the Docker network and verify if it is properly connected.
7. Check Docker images: Use the command “docker images” to view the status of Docker images and confirm if the images are correctly downloaded and configured.
8. Update Docker version: If encountering known Docker issues, consider updating Docker to the latest stable version to resolve known bugs or problems.
9. Seeking help in the Docker community: If the above method does not solve the issue, you can ask for help and advice from other developers in the Docker community forum, GitHub repository, or other technical forums.