This document discusses container storage challenges and how StorageOS provides a software defined storage solution for OpenShift. It begins by outlining why container storage is difficult, as containers are ephemeral and data needs to persist across their lifecycles. It then provides a quick introduction to Kubernetes and OpenShift, explaining how they manage container orchestration and scheduling. The document demonstrates OpenShift's storage model using persistent volumes (PVs) and persistent volume claims (PVCs), and how dynamic provisioning with storage classes works. Finally, it introduces StorageOS as a software defined, scale out storage platform that provides high availability for running containerized applications in production on OpenShift.

1. StorageOS: a Software Defined
Storage Solution for OpenShift
Cheryl Hung (@oicheryl)
Product Manager, StorageOS
May 10, 2018

2. Objectives
● Why is container storage so tricky?
● How does storage work with OpenShift?
● Demo

3. Cheryl Hung
@oicheryl
● Ex-Google software engineer
● Product at StorageOS
● CNCF ambassador
● Cloud Native London

4. Why is container storage so tricky?

5. Why do I need storage?

6. Why do I need storage?

7. First challenge: No storage pets

8. Second challenge: Data needs to follow

9. Third challenge: Humans are fallible

10. How does storage work with OpenShift?

11. Quick intro to Kubernetes & OpenShift
● An open source container orchestrator for running
containers at scale, Google-style.
● One of the fastest moving projects in open source; the
“Linux of the cloud”.
● OpenShift adds security, networking, authentication,
build/test/deploy tools...

12. Quick intro to Kubernetes & OpenShift
“Always run my application (packaged as a pod/container) with
four replicas”

13. Quick intro to Kubernetes & OpenShift

14. OpenShift Storage Model: PV and PVCs
Registers PVs in the pool
Pool of Persistent Volumes
NFS
PV
iSCSI
PV
NFS
PV
GCE
PV
Administrator

15. OpenShift Storage Model: PV and PVCs
Registers PVs in the pool
Claims a PV from the pool
claim
Pool of Persistent Volumes
NFS
PV
iSCSI
PV
NFS
PV
GCE
PV
Administrator
Developer

16. OpenShift Storage Model: PV and PVCs
claim
Registers PVs in the pool
Claims a PV from the pool
References claim in pod
claim
Pool of Persistent Volumes
NFS
PV
iSCSI
PV
NFS
PV
Pod
GCE
PV
Administrator
Developer

17. Dynamic provisioning with storage classes
Registers Storage Classes
Storage Classes
NS
PVstandardfast
Administrator

18. Dynamic provisioning with storage classes
Registers Storage Classes
claim
Storage Classes
NS
PVstandardfast
Administrator
Developer
Claims a PV from the pool

19. Dynamic provisioning with storage classes
claim
Registers Storage Classes
References claim in pod
claim
Storage Classes
NS
PV
Pod
standardfast
Administrator
Developer
Claims a PV from the pool
fast
PV

20. Demo

21. StorageOS
A software defined, scale out storage platform for running enterprise containerized
applications in production

22. High availability with StorageOS

23. Thank you
Slides at oicheryl.com