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Tweaking openstack
- 1. © 2013 Nebula, Inc. All rights reserved. Vishvananda Ishaya, Director of Open Source, Nebula Inc.
- 2. © 2013 Nebula, Inc. All rights reserved. 2 • OpenStack Technical Committee Member • Started at NASA the day Nova was created • Nova Technical Lead for the first two years of its existence • Designed and deployed multiple private clouds with OpenStack
- 3. © 2013 Nebula, Inc. All rights reserved.
- 4. © 2013 Nebula, Inc. All rights reserved. 4 $ _
- 5. © 2013 Nebula, Inc. All rights reserved. 5 $ (apt-get|yum) install openstack
- 6. © 2013 Nebula, Inc. All rights reserved. 6 $ (apt-get|yum) install openstack ...
- 7. © 2013 Nebula, Inc. All rights reserved. 7 $ (apt-get|yum) install openstack ... openstack installed successfully! $ _
- 8. © 2013 Nebula, Inc. All rights reserved. 8 $ _
- 9. © 2013 Nebula, Inc. All rights reserved. 9 $ (apt-get|yum) install openstack
- 10. © 2013 Nebula, Inc. All rights reserved. 10 $ (apt-get|yum) install openstack unknown command $ _
- 11. © 2013 Nebula, Inc. All rights reserved. 11 $ (apt-get|yum) install openstack unknown command $ _
- 12. © 2013 Nebula, Inc. All rights reserved. 12 $ (apt-get|yum) install openstack unknown command $ _
- 13. © 2013 Nebula, Inc. All rights reserved. 13 $ (apt-get|yum) install openstack unknown command $ _
- 14. © 2013 Nebula, Inc. All rights reserved. 14 $ _
- 15. © 2013 Nebula, Inc. All rights reserved. 15 $ git clone git::/github.com... ... $ cd devstack $ ./stack.sh
- 16. © 2013 Nebula, Inc. All rights reserved. 16 $ git clone git::/github.com... ... $ cd devstack $ ./stack.sh
- 17. © 2013 Nebula, Inc. All rights reserved. 17 • Tiny to very large scale • Pluggable backends • Multiple components
- 18. © 2013 Nebula, Inc. All rights reserved. 18 • Tiny to very large scale • Pluggable backends • Multiple components WAT!?
- 19. © 2013 Nebula, Inc. All rights reserved.
- 20. © 2013 Nebula, Inc. All rights reserved. 20 • Neutron OVS • Neutron Vendor • Nova-network vlan • Nova-network flat
- 21. © 2013 Nebula, Inc. All rights reserved. 21 • KVM • Xen • Hyper-V • ESX • Other
- 22. © 2013 Nebula, Inc. All rights reserved. 22 • Swift • Ceph
- 23. © 2013 Nebula, Inc. All rights reserved. 23 • Default LVM • Ceph • Solidfire • Netapp
- 24. © 2013 Nebula, Inc. All rights reserved. 24 • Compute (nova) • Object Storage (swift) • Image Service (glance) • Identity (keystone) • Dashboard (horizon) • Networking (neutron) • Block Storage (cinder) • Metering (ceilometer) • Orchestration (heat)
- 25. © 2013 Nebula, Inc. All rights reserved. 25 • Compute (nova) • Object Storage (swift) • Image Service (glance) • Identity (keystone) • Dashboard (horizon) • Networking (neutron) • Block Storage (cinder) • Metering (ceilometer) • Orchestration (heat)
- 26. © 2013 Nebula, Inc. All rights reserved.
- 27. © 2013 Nebula, Inc. All rights reserved. 27 • force_dhcp_release=true • defer_iptables_apply=true • multi_host=true • share_dhcp_address=true • dnsmasq_config_file=/path/to/file (configure dnsmasq to pass external gateway)
- 28. © 2013 Nebula, Inc. All rights reserved. 28 • force_raw_images=False • use_cow_images=False • resume_guests_state_on_host_boot=True • running_deleted_instance_action=reap
- 29. © 2013 Nebula, Inc. All rights reserved. 29 • Turn on jumbo frames • Increase tx queue length • Tweak guest tcp settings • http://buriedlede.blogspot.com/2012/11/driving-100-gigabit-network- with.html
- 30. © 2013 Nebula, Inc. All rights reserved.
- 31. © 2013 Nebula, Inc. All rights reserved. 31 • Normal linux hardening applies • Control access to the host machines • Keep software up-to-date • Don’t have services listen on 0.0.0.0 • Separate mgmt and guest traffic • http://aa4698cc2bf4ab7e5907- ed3df21bb39de4e57eec9a20aa0b8711.r41.cf2.rackcdn.com/Ope nStackSecurityGuide.epub
- 32. © 2013 Nebula, Inc. All rights reserved. 32 • Only enable api extensions your users need • Only enable scheduler filters your users need • Customize policy for administrative actions • Use HTTPS in front of api services • Consider disabling instance migration
- 33. © 2013 Nebula, Inc. All rights reserved.
- 34. © 2013 Nebula, Inc. All rights reserved. Thank you.Thank you.
Notas del editor
- Swift has some great characteristics, but its hard to argue against the two for the price of one (object and block storage) that ceph provides.
- Once again the two-for-one is valuable unless you have existing investment in a storage solution.
- Ceilometer requires quite a bit of manual configuration and coding to be useful. It doesn’t yet provide a lot out-of-the-box.
- Swift has proved its value at really large scale and the default neutron backend still has a few performance and HA drawbacks.