Docker Manager Skill

Manage Docker containers, images, and infrastructure directly from chat.

When to Use

✅ USE this skill when:

• "Show me running containers"
• "Restart the nginx container"
• "Check logs for my app"
• "How much memory is docker using?"
• "Remove unused images"
• "What ports are exposed?"
• "Pull the latest postgres image"

Core Commands

List & Status

# All containers (running + stopped)
docker ps -a --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"

# Container resource usage (live)
docker stats --no-stream --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}"

# Disk usage summary
docker system df

Container Control

docker start <name>
docker stop <name>
docker restart <name>
docker rm <name>         # remove stopped container
docker rm -f <name>      # force remove running container

Logs

docker logs <name> --tail 100
docker logs <name> --tail 50 --follow   # live tail
docker logs <name> --since 1h           # last 1 hour

Images

docker images --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}"
docker pull <image>:<tag>
docker rmi <image>
docker image prune -f    # remove dangling images

Cleanup

docker system prune -f          # remove stopped containers + dangling images
docker system prune -af         # aggressive: remove ALL unused images too
docker volume prune -f          # remove unused volumes

Inspect

docker inspect <name>
docker exec -it <name> sh        # shell into container
docker exec <name> <command>     # run command in container

Networks

docker network ls
docker network inspect <name>

Response Format

When listing containers, always show: Name, Status, Image, Ports in a clean table. When showing logs, show the last 50 lines by default unless asked for more. When cleaning up, always show what was removed and how much space was freed.

Safety Rules

• NEVER remove volumes without explicit confirmation
• NEVER remove running containers unless asked to force-remove
• ALWAYS confirm before system prune -af as it removes all unused images
• Show container names, not just IDs

Source: amirtechai/xclaw — distributed by TomeVault.