1. Storage-y things
Brian
Goff
Core Engineer
@cpuguy83

2. Agenda
Container & Image Storage
Persistent Storage

3. Image & Container Storage

4. What storage driver should I choose?

5. Container & Image Storage
What driver should I choose?
AUFS
BTRFS
DeviceMapper
Overlay
Overlay2 (new in 1.12!!!)
ZFS

6. Persistent Storage

7. “Docker is for stateless applications!”
— Uninformed

8. How do I do X with Docker?

9. Docker does not change computing fundamentals
Docker moves point of interaction higher up
Docker lets you focus more on your application and less on infrastructure

12. Storage is hard!

13. Share state by communicating
Go idiom

14. We never lot anyone’s data – but we had some data take some very, very long vacations
— Bryan Cantrill
Go idiom

15. Create a volume $ docker volume create --name important_data
$ docker run –d –v important_data:/var/lib/postgresql/data –-name pgdb postgres
$ docker rm –f pgdb
$ # Oh no! I removed my database!... But I didn’t lose my data

16. Create a volume - NFS
$ docker volume create --name important_data --opt type=nfs --opt device= :/export/path
important_data
$ docker run –d –v important_data:/var/lib/postgresql/data –-name pgdb postgres
$ docker rm –f pgdb
$ # Oh no! I removed my database!... But I didn’t lose my data

17. Create a volume - BTRFS
$ docker volume create --name important_data --opt type=btrfs --opt device=/dev/sdb
important_data
$ docker run –d –v important_data:/var/lib/postgresql/data –-name pgdb postgres
$ docker rm –f pgdb
$ # Oh no! I removed my database!... But I didn’t lose my data

18. Create a volume - Gluster
$ docker volume create --name important_data --driver glusterfs
important_data
$ docker run –d –v important_data:/var/lib/postgresql/data –-name pgdb postgres
$ docker rm –f pgdb
$ # Oh no! I removed my database!... But I didn’t lose my data

19. Storage-y things
Brian
Goff
Core Engineer
@cpuguy83