"Session ID: HKG18-401 Session Name: HKG18-401 - The OpenStack on Aarch64 journey Speaker: Marcin Juszkiewicz,Sameer Goel,Gema Gomez-Solano Track: Enterprise ★ Session Summary ★ In this session we will explain all the work the Software Defined Infrastructure team has gone through to make OpenStack run as it does today on Aarch64. We will talk about the good, the bad and the ugly with emphasis on our experience working with OpenStack upstream and setting up CI on Arm. We went from being outsiders to being part of the project almost without realising, and the journey has been filled with evangelization and engineers amazed at the fact that Aarch64 is ready to run infrastructure software such as OpenStack. --------------------------------------------------- ★ Resources ★ Event Page: http://connect.linaro.org/resource/hkg18/hkg18-401/ Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-401.pdf Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-401.mp4 --------------------------------------------------- ★ Event Details ★ Linaro Connect Hong Kong 2018 (HKG18) 19-23 March 2018 Regal Airport Hotel Hong Kong --------------------------------------------------- Keyword: Enterprise 'http://www.linaro.org' 'http://connect.linaro.org' --------------------------------------------------- Follow us on Social Media https://www.facebook.com/LinaroOrg https://www.youtube.com/user/linaroorg?sub_confirmation=1 https://www.linkedin.com/company/1026961"

1. The OpenStack on AArch64 journey
Marcin Juszkiewicz (Red Hat)
Gema Gomez (Linaro)
Sameer Goel (Qualcomm)

2. Table of content
● Who are we
● OpenStack Goals
● The Journey
○ Liberty
○ Mitaka
○ Newton
○ Pike
○ Queens
● Future plans

3. Who are we
Software Defined Infrastructure is a lead project in the Linaro
Enterprise group.
Our main goal is to make as many open source infrastructure
projects as we can run smoothly on ARM64.
Currently focussing on:
● OpenStack
● Ceph
● DPDK

4. LEG’s OpenStack Goals
● OpenStack supports ARM64 out of the box
● OpenStack on ARM64 is fully tested upstream
● Have an ARM64 OpenStack cloud in production for
ecosystem enablement
○ Linaro Developer Cloud

5. OpenStack Liberty
● First version used to deploy the Developer Cloud
○ Started with downstream packages
○ Later moved to virtualenvs per component
● Hacks were required
○ Didn’t run official test suite (tempest) on it
○ Unable to give users access to the API, just to individual VMs
○ No UEFI support, required configuring kernel+initrd per instance

6. OpenStack Mitaka
● Linaro ERP 16.06
○ Testing: install upstream version using DevStack on Debian and RDO
on CentOS
○ Didn’t run official test suite (tempest) on it
○ UEFI support added by upstream
○ Neutron based networking replaced earlier hacks
● Deployability
○ Created an ansible repo for deploying Linaro’s Reference
Architecture
○ This included Ceph as a storage solution for OpenStack

7. OpenStack Newton
● Linaro ERP 16.12 and 17.06
○ tar files built from upstream repos -> later became deb files
○ started running some tempest tests on it
○ CentOS and Debian installable via ansible
○ libvirt testing
○ US1, UK1 cloud zones deployed with ERP and ansible
● IBM Interop challenge (OpenStack Summit Barcelona
2016)
○ We were the only non-x86 platform o/

8. OpenStack Pike
● Added Arm64 support into Kolla
○ So we have container images with OpenStack components
● Libvirt 3.x made life simpler
○ PCIe being default instead of MMIO
● Official test suite (tempest) run on it

9. OpenStack Queens
● Kolla images fully tested (including Ceph Luminous)
● Fully automated deployment on ARM64 with kolla-ansible
● New functionality added
○ Graphical console
○ New image defaults for ARM64
○ Nova os-traits
○ ...
● Arm64 resources provided for OpenStack infra team
○ So there can be automated tests in their gates (CI)

10. OpenStack Queens (Downstream)
Qualcomm Centriq 2400
● Evaluating pre-Queens OpenStack deployments
● Queens release
○ Deployment has become very predictable and less cumbersome
(Kolla)
○ Other new features
● Enable in-production workload testing

11. Future plans
● Live migration
● Solving PCIe hotplug issue (in progress)
● VM Lifecycle improvements
● Add more capacity to OpenStack Infra for gate testing
● Help other projects start testing on Arm64

12. Questions?

13. Thank You
#HKG18
HKG18 keynotes and videos on: connect.linaro.org
For further information: www.linaro.org