SFO15-403: Current state of the LAVA dispatcher Refactoring

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SFO15-403: Current state of the LAVA dispatcher Refactoring Speaker: Neil Williams Date: September 24, 2015 ★ Session Description ★ Due to team size and dynamics, the LAVA dispatcher refactoring has been a slow and gradual push to replace the original device communication logic and we are starting to get closer to completion. Join us for a update and discussion on the current state of the effort, see how current use cases will migrate and how new use cases can be adopted. ★ Resources ★ Video: https://www.youtube.com/watch?v=aqdcHx80UsM Presentation: http://www.slideshare.net/linaroorg/sfo15403-current-state-of-the-lava-dispatcher-refactoring Etherpad: pad.linaro.org/p/sfo15-403 Pathable: https://sfo15.pathable.com/meetings/303074 ★ Event Details ★ Linaro Connect San Francisco 2015 - #SFO15 September 21-25, 2015 Hyatt Regency Hotel http://www.linaro.org http://connect.linaro.org

Technology

Presented by
Date
Event
SFO15-403: LAVA
Dispatcher Refactoring
Neil WilliamsNeil Williams
Thursday 24 September 2015
SFO15

Current status
● Infrastructure redesign
○ ZMQ control, XMLRPC submission
● Scheduler changes
○ pre-scheduling validation
● tftp, u-boot & multinode support
○ primary & secondary ssh
● Initial Query support
○ live result handling

Next steps
● Wider device support (ongoing)
● Permissions and restrictions
● UEFI (menu & shell)
● Extending Query support
● ADB & LXC
● Installer support
● Migration

Availability
● Example instance:
○ playground.validation.linaro.org -
sometimes running code in review.
○ Not ready for production or migration.
● Submission syntax is evolving
● All code merges directly into
master
● Pipeline results not visible on

Support
● QEMU
● beaglebone-black
● cubietruck
● panda
● mustang
● SSH
● image
○ (qemu only)
● ramdisk
● NFS
● secondary media
● secondary
connections

In development
● Job visibility
● ADB protocol
○ using LXC
○ ADB shell
● Results & Reports
● Job overrides
● Persistent NFS
● fastmodels
● vexpress
● UEFI menus
● Alternative test
methods
○ beyond POSIX

User Forum (Documentation)
● Structural
○ Indexing
○ Links from job
definitions
○ Subdivide for
different users
○ Obvious entry points
● Content
○ Use cases &
walkthroughs
○ Adding new devices
○ CTS
○ Functional tests
○ QA tests

Using the pipeline
● YAML definitions
○ some changes to the existing job files are pending.
○ git.linaro.org/lava-team/refactoring.git
● Method support
○ New ways to test but tests need to be redesigned
● Implementation support
○ Device configuration in the database
○ Ongoing changes in Results app.

Migration Outline
● Add pipeline support to existing devices
○ Functional tests
○ Development of new test definitions
○ Migrate a cohesive set of tests & repeat
● Devices become exclusive to the pipeline
once all sets have migrated. (end 2016?)
● Remove old codebase once all devices
migrated. (end 2017?)

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SFO15-403: Current state of the LAVA dispatcher Refactoring

1. Presented by Date Event SFO15-403: LAVA Dispatcher Refactoring Neil WilliamsNeil Williams Thursday 24 September 2015 SFO15

2. Current status ● Infrastructure redesign ○ ZMQ control, XMLRPC submission ● Scheduler changes ○ pre-scheduling validation ● tftp, u-boot & multinode support ○ primary & secondary ssh ● Initial Query support ○ live result handling

3. Next steps ● Wider device support (ongoing) ● Permissions and restrictions ● UEFI (menu & shell) ● Extending Query support ● ADB & LXC ● Installer support ● Migration

4. Availability ● Example instance: ○ playground.validation.linaro.org - sometimes running code in review. ○ Not ready for production or migration. ● Submission syntax is evolving ● All code merges directly into master ● Pipeline results not visible on

5. Support ● QEMU ● beaglebone-black ● cubietruck ● panda ● mustang ● SSH ● image ○ (qemu only) ● ramdisk ● NFS ● secondary media ● secondary connections

6. In development ● Job visibility ● ADB protocol ○ using LXC ○ ADB shell ● Results & Reports ● Job overrides ● Persistent NFS ● fastmodels ● vexpress ● UEFI menus ● Alternative test methods ○ beyond POSIX

7. User Forum (Documentation) ● Structural ○ Indexing ○ Links from job definitions ○ Subdivide for different users ○ Obvious entry points ● Content ○ Use cases & walkthroughs ○ Adding new devices ○ CTS ○ Functional tests ○ QA tests

8. Using the pipeline ● YAML definitions ○ some changes to the existing job files are pending. ○ git.linaro.org/lava-team/refactoring.git ● Method support ○ New ways to test but tests need to be redesigned ● Implementation support ○ Device configuration in the database ○ Ongoing changes in Results app.

9. Migration Outline ● Add pipeline support to existing devices ○ Functional tests ○ Development of new test definitions ○ Migrate a cohesive set of tests & repeat ● Devices become exclusive to the pipeline once all sets have migrated. (end 2016?) ● Remove old codebase once all devices migrated. (end 2017?)

10. Q&A Questions...

SFO15-403: Current state of the LAVA dispatcher Refactoring

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