Docker [Container|Image] 백업 및 복원

출처 : http://tuhrig.de/flatten-a-docker-container-or-image

Docker Image tar 백업 및 복원(History 포함)

• image에서 tar로 백업
  • docker save docker_image_name > /home/docker_backup.tar
• tar에서 image로 복원
  • docker load < /home/docker_backup.tar

Docker Container를 tar로 백업(History 미포함)

• container에서 tar로 백업
  • docker export docker_container_(id|name) > /home/docker_export.tar
  • docker export docker_container_(id|name) | gzip > /home/docker_export.tar.gz
• tar에서 image로 복원
  • cat /home/docker_export.tar | docker import - docker_image_name:tag_name
  • zcat /home/docker_export.tar.gz | docker import - docker_image_name:tag_name

Docker Container 용량 줄이기

• docker export docker_container_id | docker import - docker_image_name:tag_name