Docker Commands Cheat Sheet

• Images
  • docker build -t app:1.0 .
  • docker pull nginx:alpine
  • docker images: list local images
  • docker rmi <image>: remove an image
• Containers
  • docker run -d -p 8080:80 --name web nginx
  • docker ps: running containers
  • docker ps -a: include stopped ones
  • docker stop web && docker rm web
  • docker exec -it web sh: shell inside
• Debugging
  • docker logs -f web: follow output
  • docker inspect web: full config dump
  • docker stats: live CPU and memory
• Volumes
  • -v /host/path:/container/path: bind mount
  • docker volume create data: named volume
  • Volumes survive container deletion
• Cleanup
  • docker system df: disk usage overview
  • docker system prune: remove unused data
  • prune -a also deletes unused images, be careful