An overview about the openATTIC open source storage management system and the state of the Ceph support. Presented by Lenz Grimmer at the Vault Conference 2016 in Raleigh, NC.

1. openATTIC Technology
Overview - Ceph Management
Lenz Grimmer <lenz.grimmer@it-novum.com>
Vault Conference 2016, Raleigh (NC), USA

2. 2
openATTIC – History / Motivation / Background
─ Development started ~5 years ago
─ Develop a free alternative to commercial / traditional
storage management systems
─ Based on Linux / OSS tools
─ Development sponsored by it-novum
─ „Traditional Storage“ and Scale-out

3. 3
─ Modern Web UI
─ Software-Defined Storage:
RESTful API
─ Unified Storage
─ NAS (NFS, CIFS)
─ SAN (iSCSI, FC)
─ LVM, XFS, ZFS, Btrfs,
ext3/4
─ Ceph Support: CRUSH
map, Pool/RBD
management (WIP)
─ Mirroring (DRBD®)
─ Clustering
(Pacemaker/Corosync)
─ Monitoring (Nagios) built-in
─ Open Source & commercial
Support
openATTIC – Open Source Storage Management

4. 4
openATTIC Components – Backend
─ Django (Python)
─ Django REST Framework (RESTful API)
─ Various Linux tools for storage management, e.g. LVM, LIO,
filesystem utilities, DRBD, etc.
─ Nagios/Icinga & PNP4Nagios (Monitoring and Graphing)

5. 5
openATTIC Components – Frontend
─ AngularJS (JS framework)
─ Bootstrap (HTML, CSS, and JS framework)
─ Uses REST API exclusively
─ Bower (JS package manager, NodeJS)
─ Grunt (Automation, NodeJS)
─ Protractor / Jasmine (UI Test framework)

6. 6
Django REST
Framework
Backend/Models
(Django)
 Client (GUI)
oA-systemd
REST API
D-Bus
Node 1
OS Commands
Django REST
Framework
Backend/Models
(Django)
 Custom App
oA-systemd
REST API
D-Bus
Node 2
OS Commands
Multinode
Interconnect
openATTIC – Architecture

DB
(PostgreSQL)

7. 7
openATTIC – Ceph Management Challenges
─ How to find the best approach for managing Ceph
─ An ISV‘s view
─ Distributed systems vs. storing configuration data in a local
database
─ Allow external modifications / administration of the Cluster
─ How to maintain consistency of a local configuration DB?

8. 8
openATTIC – Choosing the right Ceph API
─ Option 1: Calling CLI tools and parsing output (JSON-
format)
─ Option 2: Use existing APIs and libs, e.g.
─ librados (Python bindings)
─ Ceph-REST-API
─ Calamari Server
─ API documentation
─ Redundancy / Scalability / Dependencies
─ Which is the best choice?

9. 9
openATTIC – Other Ceph Management Tools
─ How are others doing this?
─ Calamari Server / Romana
─ Intel VSM
─ Inkscope / Kraken / Ceph-Dash

10. 10
openATTIC - Ceph Management Implementation
─ Based on librados Python bindings
─ Low overhead
─ Implemented “NoDB” Django Models
─ All benefits of Django models (e.g. relations, methods, pagination)
─ REST API viewsets
─ Query Ceph for the model state instead of local DB
─ Use Salt for remote execution on nodes

11. 11
Django REST
Framework
Django Models
 Client (GUI)
REST API
openATTIC – “nodb” Django models
DB
(PostgreSQL)
nodb
Python librados django.db.models

12. 12
openATTIC - Current Development Status
─ “Nodb” Architecture / Framework in place
─ Pool Management REST API
─ List Pools, view Pool details
─ Create/Delete/Update (WIP)
─ Pool Management Web UI (table view)

13. 13
openATTIC – Future/ongoing Development Work
─ Ceph Cluster Status Dashboard
─ Extend Pool Management (Wizard)
─ OSD Monitoring/Management
─ RBD Management
─ CephFS Management
─ RGW Management (users, buckets keys)

14. 14
openATTIC – Dashboard

15. 15
openATTIC – Ceph Pool List

16. 16
openATTIC – Ceph CRUSH map editing

17. 17
openATTIC – Wizards

18. 18
openATTIC - Volume View

19. 19
openATTIC - Volume View (Performance)

20. 20
openATTIC – API Recorder

21. 21
 www.openattic.org
 demo.openattic.org
 blog.openattic.org
 docs.openattic.org
 bitbucket.org/openattic
 tracker.openattic.org
 @openATTIC
 openATTIC
openATTIC – Resources

22. 22
Questions / Discussion

23. 23
Thank you!