Ubuntu Wiki

Kernel SRU Workflow (proposed)

The kernel release tracking bug is going to be changed to facilitate better communication between the responsible parties and clearer handoffs as the release progresses.

We are taking advantage of existing Launchpad capabilities.

When a kernel release tracking bug is created, it is created against the relevant kernel source package and nominated for the related Ubuntu series. The new process will target the bug against an additional project, the "Kernel SRU Workflow" project and nominate it for all the series that are defined for that project.

The "Kernel SRU Workflow" project has a number of custom "series" created for it that represent the different stages of the kernel cadence. A "series" represents a task to be accomplished by a team/person. The different tasks will be assigned to the team/person responsible for that stage. The assignee will set the status of the tasks they are working.

An automated script will run periodicaly to monitor the current state of the different tasks and change status when necessary. This script will be referred to below as the Workflow Mgr. The kernel team will develop this bot.

An example:

1. The kernel team creates a tracking bug, all tasks will be set to their initial state (status: Incomplete) and be assigned to the appropriate team.

2. The kernel team sets the Create-upload-and-build-source-package task to the in-progress state (status: In Progress)

3. The kernel team builds and uploads the source package to the kernel team ppa. Once the source package successfully builds and is ready to be copied to proposed the task state is changed to completed (status: Fix Released).

4. Workflow Mgr. detects that the state of the Create-upload-and-build-source-package task has completed and changes the Promote-to-proposed task to it's ready-to-start state (status: Confirmed).

5. An archive admin sets the Promote-to-proposed task to in-progress (status: In Progress) and copies the package to the proposed pocket in the archive.

6. Once the package has been copied an archive admin sets the Promote-to-proposed task to completed (status: Fix Released).

7. Workflow Mgr. detects that the state of the Promote-to-proposed task is now completed and changes the state of the Verification-testing task to the in-progress state (status: In Progress).

8. Once all the bugs, not fixed by stable upstream releases, listed in the changlog have been marked verification-done, the Workflow Mgr. changes the state of the Certification-testing and Regression-testing tasks to the ready-to-start state (status: Confirmed).

9. When the HW Certification team detects that the Certification-testing task is in the ready-to-start state (status: Confirmed) and they start testing, they change the tasks state to in-progress (status: In Progress).

10. When the QA team detects that the Regression-testing task is in the ready-to-start state (status: Confirmed) and they start testing, they change the tasks state to in-progress (status: In Progress).

11. Once certification testing completes, the HW certification team changes the state of the Certification-testing task to completed (status: Fix Released).

12. Once regression testing completes, the QA test changes the state of the Regression-testing task to completed (status:Fix Released).

13. When both the Certification-testing and Regression-testing tasks have been set to completed states (status: Fix Released) and both the certification-testing-completed-successfully and regression-testing-completed-successfully tags have been added by the appropriate team, the Workflow Mgr. changes the state of the Promote-to-updates task to the ready-to-start state (status:Confirmed).

14. An archive admin copies the package from proposed to the updates pocket in the archive and sets the Promote-to-updates task to completed (status: Fix Released).

15. If there were CVEs and if the Promote-to-security task is set to ready-to-start (status: Confirmed), the security team takes care of any tasks they deem necessary prior to having an archive admin copy the release to the security pocket.

16. Once the Promote-to-security task is set to completed (status: Fix Released) the security team copies it to the security pocket.

Note: Some tasks can move from Confirmed straight to Fix Released depending on the amount of time/effort involved in the task.

An example: