1. The docker container is not started Solution: start the container
Steps:
1. Use the command to view the docker container id: docker ps -a;
2. Use the command: docker start container id to start the docker container.
3. Then you can use the command: docker exec -it container id /bin/bash to enter the docker container.
2. The network configuration has been changed, the solution: restart the network
Use the command: source /etc/profile
3. Configuration file problem, solution: modify the configuration file
Example: An error occurred in the configuration file change in mysql, the operation steps are as follows:
1. Copy the configuration file from the container to the local
docker cp container id:/etc/mysql/my.cnf /opt
2. Modify the configuration file locally and save it
Use the command: vi /opt/my.cnf
3. Copy the changed configuration file to the docker container
docker cp /opt/my.cnf container id:/etc/mysql
4. Restart the container
docker restart container id
5. View the process started in the docker container
docker ps -a