Running Containers
Managing Docker containers is a fundamental skill for containerization. Below is a guide to the most common commands for listing, managing, and inspecting your containers.
1. Listing Containers
To see which containers are on your system, you can use the following commands:
- List running containers:
docker ps - List all containers (including stopped ones):
docker ps -a
2. Lifecycle Management
Use these commands to control the state of your containers. You can refer to a container by its Container ID or Name.
- Start a stopped container:
docker start <container_id_or_name> - Stop a running container:
docker stop <container_id_or_name> - Restart a container:
docker restart <container_id_or_name> - Remove a container:
docker rm <container_id_or_name>(Note: The container must be stopped first.)
3. Inspection and Debugging
When you need to look inside a container or monitor its health:
- Get detailed information:
docker inspect <container_id_or_name> - View container logs:
docker logs -f <container_id_or_name> - Run a command inside a running container:
docker exec -it <container_id_or_name> /bin/bash - Monitor resource usage:
docker stats <container_id_or_name>