docker

Docker

Use this skill when the user wants to manage containers, images, or compose stacks.

Containers

docker ps                              # list running containers
docker ps -a                           # list all containers
docker start <name|id>
docker stop <name|id>
docker restart <name|id>
docker rm <name|id>
docker logs <name|id> --tail 100 -f
docker exec -it <name|id> bash
docker inspect <name|id>
docker stats --no-stream

Images

docker images
docker pull image:tag
docker build -t name:tag .
docker rmi image:tag
docker image prune -f

Docker Compose

docker compose up -d
docker compose down
docker compose ps
docker compose logs -f service
docker compose restart service
docker compose pull
docker compose exec service bash

Volumes & Networks

docker volume ls
docker volume inspect vol_name
docker network ls
docker network inspect net_name

Cleanup

docker system prune -f             # remove stopped containers, dangling images
docker system prune -af            # also remove unused images (destructive)
docker volume prune -f

Safety notes

• Always confirm before docker system prune -af or removing named volumes.
• Prefer docker compose down over docker rm -f for compose stacks.
• Check container logs before forceful removal to capture error context.