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dheidler, 2022-10-20 14:11

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# Introduction
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This is the organisation wiki for the **openQA Project**.
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The source code is hosted in the [os-autoinst github project](http://github.com/os-autoinst/), especially [openQA itself](http://github.com/os-autoinst/openQA) and the main backend [os-autoinst](http://github.com/os-autoinst/os-autoinst)
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If you are interested in the tests for SUSE/openSUSE products take a look into the [openqatests](https://progress.opensuse.org/projects/openqatests) project.
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If you are looking for entry level issues to contribute to please look into the section [[Wiki#Where-to-contribute|Where to contribute]]
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{{toc}}
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# Organisational
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## ticket workflow
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The following ticket statuses are used together and their meaning is explained:
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* *New*: No one has worked on the ticket (e.g. the ticket has not been properly refined) or no one is feeling responsible for the work on this ticket.
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* *Workable*: The ticket has been refined and is ready to be picked.
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* *In Progress*: Assignee is actively working on the ticket.
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* *Resolved*: The complete work on this issue is done and the according issue is supposed to be fixed as observed (Should be updated together with a link to a merged pull request or also a link to an production openQA showing the effect)
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* *Feedback*: Further work on the ticket is blocked by open points or is awaiting for the feedback to proceed. Sometimes also used to ask Assignee about progress on inactivity.
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* *Blocked*: Further work on the ticket is blocked by some external dependency (e.g. bugs, not implemented features). There should be a link to another ticket, bug, trello card, etc. where it can be seen what the ticket is blocked by.
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* *Rejected*: The issue is considered invalid, should not be done, is considered out of scope.
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* *Closed*: As this can be set only by administrators it is suggested to not use this status.
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It is good practice to update the status together with a comment about it, e.g. a link to a pull request or a reason for reject.
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## ticket categories
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* *Concrete Bugs*: Regressions, crashes, error messages
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* *Feature requests*: Ideas or wishes for extension, enhancement, improvement
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* *Organisational*: Organisational tasks within the project(s), not directly code related
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* *Support*: Support of users, usage problems, questions
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Please avoid the use of other, deprecated categories
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Suggestion by *okurz*: I recommend to avoid the word "bug" in our categories because of the usual "is it a bug or a feature" struggle. Instead I suggest to strictly define "Regressions & Crashes" to clearly separate "it used to work in before" from "this was never part of requirements" for Features. Any ticket of this category also means that our project processes missed something so we have points for improvements, e.g. extend things to look out for in code review.
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## Epics and Sagas
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[epic]s and [saga]s belong to the "coordination" tracker, project contributors are not required to follow this convention but the tracker may be changed automagically in the future: http://mailman.suse.de/mailman/private/qa-sle/2020-October/002722.html 
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## ticket templates
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You can use these templates to fill in tickets and further improve them with more detail over time. Copy the code block, paste it into a new issue, replace every block marked with "<…>" with your content or delete if not appropriate.
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### Defects
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Subject: `<Short description, example: "openQA dies when triggering any Windows ME tests">`
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```
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## Observation
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<description of what can be observed and what the symptoms are, provide links to failing test results and/or put short blocks from the log output here to visualize what is happening>
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## Steps to reproduce
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* <do this>
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* <do that>
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* <observe result>
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## Impact
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<clearly state the impact of issues to make sure according prioritization is applied and rollbacks/downgrades can be applied>
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## Problem
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<problem investigation, can also include different hypotheses, should be labeled as "H1" for first hypothesis, etc.>
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## Suggestion
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* <what to do as a first step>
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* <Fix the actual problem>
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* <Consider fixing the design>
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* <Consider fixing the team's process>
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* <Consider to explore further>
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## Workaround
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<example: retrigger job>
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```
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example ticket: #10526
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For tickets referencing "auto_review" see
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https://github.com/os-autoinst/scripts/blob/master/README.md#auto-review---automatically-detect-known-issues-in-openqa-jobs-label-openqa-jobs-with-ticket-references-and-optionally-retrigger
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for a suggested template snippet.
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### Feature requests
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Subject: `<Short description, example: "grub3 btrfs support" (feature)>`
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```
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## User story
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<As a <role>, I want to <do an action>, to <achieve which goal> >
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## Acceptance criteria
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* <**AC1:** the first acceptance criterion that needs to be fulfilled to do this, example: Clicking "restart button" causes restart of the job>
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* <**AC2:** also think about the "not-actions", example: other jobs are not affected>
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## Tasks
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* <first task to do as an easy starting point>
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* <what do do next, all tasks optionally with an effort estimation in hours, e.g. "(0.5-2h)">
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* <optional: mark "optional" tasks>
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## Further details
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<everything that does not fit into above sections>
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```
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example ticket: #10212
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## Further decision steps working on test issues
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Test issues could be one of the following sources. Feel free to use the following template in tickets as well
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```
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## Problem
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* **H1** The product has changed
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 * **H1.1** product changed slightly but in an acceptable way without the need for communication with DEV+RM --> adapt test
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 * **H1.2** product changed slightly but in an acceptable way found after feedback from RM --> adapt test
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 * **H1.3** product changed significantly --> after approval by RM adapt test
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* **H2** Fails because of changes in test setup
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 * **H2.1** Our test hardware equipment behaves different
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 * **H2.2** The network behaves different
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* **H3** Fails because of changes in test infrastructure software, e.g. os-autoinst, openQA
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* **H4** Fails because of changes in test management configuration, e.g. openQA database settings
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* **H5** Fails because of changes in the test software itself (the test plan in source code as well as needles)
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* **H6** Sporadic issue, i.e. the root problem is already hidden in the system for a long time but does not show symptoms every time
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```
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## Additional details needed for non-qemu issues
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As the automatic integration tests of os-autoinst and openQA are based on qemu virtualization, for any non-qemu related requests please provide detailed manual reproduction steps, otherwise it is unlikely that any issue or feature request can be implemented.
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## pull request handling on github
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As a reviewer of pull requests on github for all related repositories, e.g. https://github.com/os-autoinst/os-autoinst-distri-opensuse/pulls, apply labels in case PRs are open for a longer time and can not be merged so that we keep our backlog clean and know why PRs are blocked.
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* **notready**: Triaged as not ready yet for merging, no (immediate) reaction by the reviewee, e.g. when tests are missing, other scenarios break, only tested for one of SLE/TW
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* **wip**: Marked by the reviewee itself as "[WIP]" or "[DO-NOT-MERGE]" or similar
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* **question**: Questions to the reviewee, not answered yet
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## Where to contribute?
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If you want to help openQA development you can take a look into the existing [issues](https://progress.opensuse.org/projects/openqav3/issues).
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You can start with
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* [entrance level issues](https://progress.opensuse.org/projects/openqav3/search?q=entrance+level+issue&open_issues=1)
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* issues tagged as [easy](https://progress.opensuse.org/projects/openqav3/issues?utf8=%E2%9C%93&set_filter=1&sort=id%3Adesc&f%5B%5D=status_id&op%5Bstatus_id%5D=o&f%5B%5D=issue_tags&op%5Bissue_tags%5D=%3D&v%5Bissue_tags%5D%5B%5D=easy&f%5B%5D=&c%5B%5D=subject&c%5B%5D=project&c%5B%5D=status&c%5B%5D=assigned_to&c%5B%5D=fixed_version&c%5B%5D=is_private&c%5B%5D=due_date&c%5B%5D=relations&group_by=&t%5B%5D=)
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* issues tagged as [beginner](https://progress.opensuse.org/projects/openqav3/issues?utf8=%E2%9C%93&set_filter=1&sort=id%3Adesc&f%5B%5D=status_id&op%5Bstatus_id%5D=o&f%5B%5D=issue_tags&op%5Bissue_tags%5D=%3D&v%5Bissue_tags%5D%5B%5D=beginner&f%5B%5D=&c%5B%5D=subject&c%5B%5D=project&c%5B%5D=status&c%5B%5D=assigned_to&c%5B%5D=fixed_version&c%5B%5D=is_private&c%5B%5D=due_date&c%5B%5D=relations&group_by=&t%5B%5D=) - not necessarily "easy" but more suitable for someone coming to a project with little or no domain specific knowledge
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* ideas from #65271
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There are also some "always valid" tasks to be working on:
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* *improve test coverage*:
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 * *user story*: As openqa backend as well as test developer I want better test coverage of our projects to reduce technical debt
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 * *acceptance criteria*: test coverage is significantly higher than before
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 * *suggestions*: check current coverage in each individual project (os-autoinst/openQA/os-autoinst-distri-opensuse) and add tests as necessary
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# Use cases
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The following use cases 1-6 have been defined within a SUSE workshop (others have been defined later) to clarify how different actors work with openQA. Some of them are covered already within openQA quite well, some others are stated as motivation for further feature development.
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## Use case 1
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**User:** QA-Project Managment
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**primary actor:** QA Project Manager, QA Team Leads
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**stakeholder:** Directors, VP
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**trigger:** product milestones, providing a daily status
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**user story:** „As a QA project manager I want to check on a daily basis the „openQA Dashboard“ to get a summary/an overall status of the „reviewers results“ in order to take the right actions and prioritize tasks in QA accordingly.“
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## Use case 2
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**User:** openQA-Admin
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**primary actor:** Backend-Team
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**stakeholder:** Qa-Prjmgr, QA-TL, openQA Tech-Lead
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**trigger:** Bugs, features, new testcases
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**user story:** „As an openQA admin I constantly check in the web-UI the system health and I manage its configuration to ensure smooth operation of the tool.“
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## Use case 3
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**User:** QA-Reviewer
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**primary actor:** QA-Team
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**stakeholder:** QA-Prjmgr, Release-Mgmt, openQA-Admin
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**trigger:** every new build
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**user story:** „As an openQA-Reviewer at any point in time I review on the webpage of openQA the overall status of a build in order to track and find bugs, because I want to find bugs as early as possible and report them.“
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## Use case 4
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**User:** Testcase-Contributor
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**primary actor:** All development teams, Maintenance QA
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**stakeholder:** QA-Reviewer, openQA-Admin, openQA Tech-Lead
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**trigger:** features, new functionality, bugs, new product/package
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**user story:** „As developer when there are new features, new functionality, bugs, new product/package in git I contribute my testcases because I want to ensure good quality submissions and smooth product integration.“
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## Use case 5
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**User:** Release-Mgmt
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**primary actor:** Release Manager
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**stakeholder:** Directors, VP, PM, TAMs, Partners
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**trigger:** Milestones
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**user story:** „As a Release-Manager on a daily basis I check on a dashboard for the product health/build status in order to act early in case of failures and have concrete and current reports.“
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## Use case 6
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**User:** Staging-Admin
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**primary actor:** Staging-Manager for the products
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**stakeholder:** Release-Mgmt, Build-Team
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**trigger:** every single submission to projects
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**user story:** „As a Staging-Manager I review the build status of packages with every staged submission to the „staging projects“ in the „staging dashboard“ and the test-status of the pre-integrated fixes, because I want to identify major breakage before integration to the products and provide fast feedback back to the development.“
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## Use case 7
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**User:** Bug investigator
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**primary actor:** Any bug assignee for openQA observed bugs
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**stakeholder:** Developer
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**trigger:** bugs
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**user story:** „As a developer that has been assigned a bug which has been observed in openQA I can review referenced tests, find a newer and the most recent job in the same scenario, understand what changed since the last successful job, what other jobs show same symptoms to investigate the root cause fast and use openQA for verification of a bug fix.“
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# Thoughts about categorizing test results, issues, states within openQA
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by okurz
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When reviewing test results it is important to distinguish between different causes of "failed tests"
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## Nomenclature
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### Test status categories
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A common definition about the status of a test regarding the product it tests: "false|true positive|negative" as described on https://en.wikipedia.org/wiki/False_positives_and_false_negatives. "positive|negative" describes the outcome of a test ("positive": test signals presence of issue; "negative": no signal) whereas "false|true" describes the conclusion of the test regarding the presence of issues in the SUT or product in our case ("true": correct reporting; "false": incorrect reporting), e.g. "true negative", test successful, no issues detected and there are no issues, product is working as expected by customer. Another example: Think of testing as of a fire alarm. An alarm (event detector) should only go off (be "positive") *if* there is a fire (event to detect) --> "true positive" whereas *if* there is *no* fire there should be *no* alarm --> "true negative".
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Another common but potentially ambiguous categorization:
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* *broken*: the test is not behaving as expected (Ambiguity: "as expected" by whom?) --> commonly a "false positive", can also be "false negative" but hard to detect
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* *failing*: the test is behaving as expected, but the test output is a fail --> "true positive"
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* *working*: the test is behaving as expected (with no comment regarding the result, though some might ambiguously imply 'result is negative')
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* *passing*: the test is behaving as expected, but the result is a success --> "true negative"
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If in doubt declare a test as "broken". We should review the test and examine if it is behaving as expected.
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Be careful about "positive/negative" as some might also use "positive" to incorrectly denote a passing test (and "negative" for failing test) as an indicator of "working product" not an indicator about "issue present". If you argue what is "used in common speech" think about how "false positive" is used as in "false alarm" --> "positive" == "alarm raised", also see https://narainko.wordpress.com/2012/08/26/understanding-false-positive-and-false-negative/
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### Priorization of work regarding categories
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In this sense development+QA want to accomplish a "true negative" state whenever possible (no issues present, therefore none detected). As QA and test developers we want to prevent "false positives" ("false alarms" declaring a product as broken when it is not but the test failed for other reasons), also known as "type I error" and "false negatives" (a product issue is not catched by tests and might "slip through" QA and at worst is only found by an external outside customer) also known as "type II error". Also see https://en.wikipedia.org/wiki/Type_I_and_type_II_errors. In the context of openQA and system testing paired with screen matching a "false positive" is much more likely as the tests are very susceptible to subtle variations and changes even if they should be accepted. So when in doubt, create an issue in progress, look at it again, and find that it was a false alarm, rather than wasting more peoples time with INVALID bug reports by believing the product to be broken when it isn't. To quote Richard Brown: "I […] believe this is the route to ongoing improvement - if we have tests which produce such false alarms, then that is a clear indicator that the test needs to be reworked to be less ambiguous, and that IS our job as openQA developers to deal with".
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## Further categorization of statuses, issues and such in testing, especially automatic tests
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By okurz
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This categorization scheme is meant to help in communication in either written or spoken discussions being simple, concise, easy to remember while unambiguous in every case.
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While used for naming it should also be used as a decision tree and can be followed from the top following each branch.
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### Categorization scheme
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To keep it simple I will try to go in steps of deciding if a potential issue is of one of two categories in every step (maybe three) and go further down from there. The degree of further detailing is not limited, i.e. it can be further extended. Naming scheme should follow arabic number (for two levels just 1 and 2) counting schemes added from the right for every additional level of decision step and detail without any separation between the digits, e.g. "1111" for the first type in every level of detail up to level four. Also, I am thinking of giving the fully written form phonetic name to unambiguously identify each on every level as long as not more individual levels are necessary. The alphabet should be reserved for higher levels and higher priority types.
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Every leaf of the tree must have an action assigned to it.
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1 **failed** (ZULU)
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11 new (passed->failed) (YANKEE)
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111 product issue ("true positive") (WHISKEY)
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1111 unfiled issue (SIERRA)
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11111 hard issue (openqa *fail*) (KILO)
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111121 critical / potential ship stopper (INDIA) --> immediately file bug report with "ship_stopper?" flag; opt. inform RM directly
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111122 non-critical hard issue (HOTEL) --> file bug report
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11112 soft issue (openqa *softfail* on job level, not on module level) (JULIETT) --> file bug report on failing test module
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1112 bugzilla bug exists (ROMEO)
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11121 bug was known to openqa / openqa developer --> cross-reference (bug->test, test->bug) AND raise review process issue, improve openqa process
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11122 bug was filed by other sources (e.g. beta-tester) --> cross-reference (bug->test, test->bug)
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112 test issue ("false positive") (VICTOR)
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1121 progress issue exists (QUEBEC) --> cross-reference (issue->test, test->issue)
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1122 unfiled test issue (PAPA)
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11221 easy to do w/o progress issue
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112211 need needles update --> re-needle if sure, TODO how to notify?
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112212 pot. flaky, timeout
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1122121 retrigger yields PASS --> comment in progress about flaky issue fixed
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1122122 reproducible on retrigger --> file progress issue
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11222 needs progress issue filed --> file progress issue
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12 existing / still failing (failed->failed) (XRAY)
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121 product issue (UNIFORM)
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1211 unfiled issue (OSCAR) --> file bug report AND raise review process issue (why has it not been found and filed?)
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1212 bugzilla bug exists (NOVEMBER) --> ensure cross-reference, also see rules for 1112 ROMEO
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122 test issue (TANGO)
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1221 progress issue exists (MIKE) --> monitor, if persisting reprioritize test development work
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1222 needs progress issue filed (LIMA) --> file progress issue AND raise review process issue, see 1211 OSCAR
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2 **passed** (ALFA)
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21 stable (passed->passed) (BRAVO)
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211 existing "true negative" (DELTA) --> monitor, maybe can be made stricter
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212 existing "false negative" (ECHO) --> needs test improvement
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22 fixed (failed->passed) (CHARLIE)
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222 fixed "true negative" (FOXTROTT) --> TODO split monitor, see 211 DELTA
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2221 was test issue --> close progress issue
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2222 was product issue
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22221 no bug report exists --> raise review process issue (why was it not filed?)
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22222 bug report exists
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222221 was marked as RESOLVED FIXED
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221 fixed but "false negative" (GOLF) --> potentially revert test fix, also see 212 ECHO
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Priority from high to low: INDIA->OSCAR->HOTEL->JULIETT->…
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# Important ticket queries
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* All auto-review tickets: https://progress.opensuse.org/projects/openqav3/issues?query_id=697 , see https://github.com/os-autoinst/scripts/blob/master/README.md#auto-review---automatically-detect-known-issues-in-openqa-jobs-label-openqa-jobs-with-ticket-references-and-optionally-retrigger for further information regarding auto-review
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* All auto-review+force-result tickets: https://progress.opensuse.org/projects/openqav3/issues?query_id=700
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# Proposals for uses of labels
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With [Show bug or label icon on overview if labeled (gh#550)](https://github.com/os-autoinst/openQA/pull/550) it is possible to add custom labels just by writing them. Nevertheless, a convention should be found for a common benefit. <del>Beware that labels are also automatically carried over with (Carry over labels from previous jobs in same scenario if still failing [gh#564])(https://github.com/os-autoinst/openQA/pull/564) which might make consistent test failures less visible when reviewers only look for test results without labels or bugrefs.</del> Labels are not anymore automatically carried over ([gh#1071](https://github.com/os-autoinst/openQA/pull/1071)).
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List of proposed labels with their meaning and where they could be applied.
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* ***`fixed_<build_ref>`***: If a test failure is already fixed in a more recent build and no bug reference is known, use this label together with a reference to a more recent passed test run in the same scenario. Useful for reviewing older builds. Example (https://openqa.suse.de/tests/382518#comments):
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```
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label:fixed_Build1501
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t#382919
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```
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* ***`needles_added`***: In case needles were missing for test changes or expected product changes caused needle matching to fail, use this label with a reference to the test PR or a proper reasoning why the needles were missing and how you added them. Example (https://openqa.suse.de/tests/388521#comments):
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```
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label:needles_added
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needles for https://github.com/os-autoinst/os-autoinst-distri-opensuse/pull/1353 were missing, added by jpupava in the meantime.
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```
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# s390x Test Organisation
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See the following picture for a graphical overview of the current s390x test infrastructure at SUSE:
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![SUSE s390x test infrastructure](qa_sle_openqa_s390x_test_infrastructure.jpg)
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## Upgrades
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### on z/VM 
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#### special Requirements
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Due to the lack of proper use of hdd-images on zVM, we need to workaround this with having a dedicated worker_class aka a dedicated Host where we run two jobs with START_AFTER_TEST,
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the first one which installs the basesystem we want to have upgraded and a second one which is doing the actually upgrade (e.g migration_offline_sle12sp2_zVM_preparation and migration_offline_sle12sp2_zVM)
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Since we encountered issues with randomly other preparation jobs are started in between there, we need to ensure that we have one complete chain for all migration jobs running on one worker, that means for example:
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1. migration_offline_sle12sp2_zVM_preparation 
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1. migration_offline_sle12sp2_zVM (START_AFTER_TEST=#1) 
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1. migration_offline_sle12sp2_allpatterns_zVM_preparation (START_AFTER_TEST=#2) 
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1. migration_offline_sle12sp2_allpatterns_zVM 
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1. ...
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This scheme ensures that all actual Upgrade jobs are finding the prepared system and are able to upgrade it
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### on z/KVM
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No special requirements anymore, see details in #18016
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## Automated z/VM LPAR installation with openQA using qnipl
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There is an ongoing effort to automate the LPAR creation and installation on z/VM. A first idea resulted in the creation of [qnipl](https://github.com/openSUSE/dracut-qnipl). `qnipl` enables one to boot a very slim initramfs from a shared medium (e.g. shared SCSI-disks) and supply it with the needed parameters to chainload a "normal SLES installation" using kexec.
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This method is required for z/VM because snipl (Simple network initial program loader) can only load/boot LPARs from specific disks, not network resources.
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### Setup
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1. Get a shared disk for all your LPARs
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  * Normally this can easily done by infra/gschlotter
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  * Disks needs to be connected to all guests which should be able to network-boot
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1. Boot a fully installed SLES on one of the LPARs to start preparing the shared-disk
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1. Put a DOS partition table on the disk and create one single, large partition on there
354
1. Put a FS on there. Our first test was on ext2 and it worked flawlessly in our attempts
355
1. Install `zipl` (The s390x bootloader from IBM) on this partition
356
  * A simple and sufficient config can be found in [poo#33682](https://progress.opensuse.org/issues/33682)
357
1. clone [`qnipl`](https://github.com/nicksinger/dracut-qnipl) to your dracut modules (e.g. /usr/lib/dracut/modules.d/95qnipl)
358
1. Include the module named `qnipl` to your dracut modules for initramfs generation
359
  * e.g. in /etc/dracut.conf.d/99-qnipl.conf add: `add_dracutmodules+=qnipl`
360
1. Generate your initramfs (e.g. `dracut -f -a "url-lib qnipl" --no-hostonly-cmdline /tmp/custom_initramfs`)
361
  * Put the initramfs next to your kernel binary on the partition you want to prepare
362
1. From now on you can use `snipl` to boot any LPAR connected with this shared disk from network
363
  * example: `snipl -f ./snipl.conf -s P0069A27-LP3 -A fa00 --wwpn_scsiload 500507630713d3b3 --lun_scsiload 4001401100000000 --ossparms_scsiload "install=http://openqa.suse.de/assets/repo/SLE-15-Installer-DVD-s390x-Build533.2-Media1 hostip=10.161.159.3/20 gateway=10.161.159.254 Nameserver=10.160.0.1 Domain=suse.de ssh=1 regurl=http://all-533.2.proxy.scc.suse.de"`
364
  * `--ossparms_scsiload` is then evaluated and used by `qnipl` to kexec into the installer with the (for the installer) needed parameters
365
366
### Further details
367
368 78 nicksinger
Further details can also be found in the [github repo](https://github.com/openSUSE/dracut-qnipl/blob/master/README.md). Pull requests, questions and ideas always welcome!
369 84 okurz
370 109 okurz
# Infrastructure setup for o3 (openqa.opensuse.org) and osd (openqa.suse.de)
371 1 alarrosa
372 194 okurz
Both o3 and osd are hosted in SUSE data centers, mostly Nuremberg, Germany, and Prague, Czech Republic.
373
374
Interesting monitoring link referring to both (SUSE internal):
375 199 okurz
* https://bs-monitor.nue.suse.com:3000/d/paTR0FXnz/temperature-and-humidity-in-nuremberg-server-rooms?orgId=1&viewPanel=4&from=now-24h&to=now (SUSE internal) for climate control in SUSE Nuremberg Maxtorhof hosting, also http://srv2mgmt:3000/ with "monitor:monitor"
376 194 okurz
377 109 okurz
## o3 (openqa.opensuse.org)
378
379 113 okurz
o3 consists of a VM running the web UI and physical worker machines. The VM for o3 has netapp backed storage on rotating disk so less performant than SSD but cheaper. So eventually we might have the possibility to use SSD based storage. Currently there are four virtual storage devices provided to o3 totalling to 10 TB.
380 88 okurz
381 185 okurz
The o3 infrastructure is in detail described on https://github.com/os-autoinst/sync-and-trigger/blob/main/openqa-opensuse.md
382
383 141 okurz
### Accessing the o3 infrastructure
384
385 180 okurz
The o3 webui host as well the workers within the o3 infrastructure can be accessed over ssh by using `ssh -p 2213 gate.opensuse.org`. Ask one of the existing admins within https://app.element.io/#/room/#openqa:opensuse.org or irc://irc.libera.chat/opensuse-factory (so that I know you can be reached over those channels when people have questions to you what you did with the ssh access) to put your ssh key on the o3 webui host to be able to login. 
386 141 okurz
387
To give access for a new user an existing admin can do the following:
388
389
```
390
sudo useradd -G users,trusted --create-home $user
391
echo "$ssh_key_from_user" | sudo tee -a /home/$user/.ssh/authorized_keys
392
```
393
394
#### SSH configuration
395
396 207 mkittler
To easily access all hosts behind the jump host you can use the following config for your ssh client (`~/.ssh/config`):
397 141 okurz
398
```
399
Host ariel
400
  HostName gate.opensuse.org
401
  Port 2213
402
403
# Note that %h as understood by -W needs the real host, aliases won't work:
404
# kex_exchange_identification: Connection closed by remote host
405
# Connection closed by UNKNOWN port 65535`
406
Host *.opensuse.org
407
  ProxyCommand ssh -q -A -x ariel -W %h:%p
408
```
409
410
**A word of warning:** be aware that this enables agent-forwarding to at least the jumphost. Please read up for yourself if and how bad you consider the security implications of doing so.
411
412
The workers can only be accessed from "ariel", not directly. One can use password authentication on the workers using the root account. Ask existing admins for the root password. It is suggested that you use key-based authentication. For this put your ssh keys on all the workers, e.g. using the above configuration and `ssh-copy-id`.
413
414
**Notice:** Some machines are connected to the o3 openQA host from other networks and might need different ways of access, at time of writing:
415
416
* Remote (owner: @ggardet_arm):
417
 * ip-10-0-0-58
418
 * oss-cobbler-03
419
 * siodtw01 (for tests on Raspberry Pi 2,3,4)
420
421
### Manual command execution on o3 workers
422
423
To execute commands manually on all workers within the o3 infrastructure one can do for example the following:
424
425
```
426 208 okurz
for i in aarch64 openqaworker1 openqaworker4 openqaworker7 openqaworker19 power8 rebel; do echo $i && ssh root@$i "zypper -n dup && reboot" ; done
427 141 okurz
```
428
429 181 mkittler
```
430 208 okurz
for i in aarch64 openqaworker1 openqaworker4 openqaworker7 openqaworker19 power8 rebel; do echo $i && ssh root@$i " echo 'ssh-rsa … …' >> /root/.ssh/authorized_keys " ; done
431 181 mkittler
```
432
433 1 alarrosa
mind the correct list of machines.
434 193 okurz
435
Formerly for true transactional servers we used:
436
437
```
438
for i in $hosts; do echo $i && ssh root@$i "(transactional-update -n dup || zypper -n dup) && reboot" ; done
439
```
440 141 okurz
441 91 okurz
### Automatic update of o3
442 92 okurz
443
o3 is automatically deployed on a daily base, that includes both the webUI host as well as the workers.
444 111 okurz
445
#### Automatic update of o3 webUI host
446
447 184 okurz
openqa.opensuse.org applies continuous updates of openQA related packages, conducts nightly updates of system packages and reboots automatically as required, see
448
http://open.qa/docs/#_automatic_system_upgrades_and_reboots_of_openqa_hosts
449
for details
450 111 okurz
451
#### Recurring automatic update of openQA workers
452
453 186 okurz
Same as the o3 webUI all o3 workers all apply continuous updates of openQA related packages. Additionally most apply a daily automatic system update and are "Transactional Servers" running openSUSE Leap. power8 is non-transactional with a weekly update of the system every Sunday.
454 111 okurz
455
This was for a number of reasons including:
456 109 okurz
457 96 okurz
* Getting all the machines consistent after a few years of drift
458
* Making it easier to keep them consistent by leveraging a read only root filesystem
459
* Guaranteeing rollbackability by using transactional updates
460 102 okurz
461 1 alarrosa
This was done by rbrown also to fulfill the prerequisite to getting them viable for multi-machine testing
462 102 okurz
463
These systems currently patch themselves and reboot automatically in the default maintenance window of 0330-0500 CET/CEST.
464 112 okurz
465 102 okurz
On problems this could be changed in the following way:
466
467 109 okurz
* Edit the maintenance window in /etc/rebootmgr.conf
468 105 nicksinger
* Disable the automatic reboot by "systemctl disable rebootmgr.service"
469
* Disable the automatic patching by "systemctl disable transactional-update.timer"
470
471 192 okurz
EDIT: 2022-07-11: All o3 machines are effectively not "transactional-workers" anymore as openqa-continuous-update.service is doing a complete `zypper dup` every couple of minutes. With `rebootmgr` triggered for reboot still automatic nightly reboots happen as necessary. See #111989 for details
472
473 105 nicksinger
SUSE employees have access to the bootmenu for the openQA worker machines, e.g. openqaworker1 and openqaworker4 via openqaworker1- ipmi.suse.de and openqaworker4-ipmi.suse.de which are both connected to the r&d network. For imagetester one would need to go through SUSE-IT in an unlikely event of a boot-preventing update. "snapper rollback" can be executed from a booted, functionally operative machine which one can ssh into.
474
475
For manual investigation https://github.com/kubic-project/microos-toolbox can be helpful
476
477
#### Rollback of updates
478 140 livdywan
479
Updates on workers can be rolled back using `transactional-update` affecting the transactional workers (others are likely not updated that often):
480
481 105 nicksinger
```
482
for i in aarch64 openqaworker1 openqaworker4 openqaworker7 power8 imagetester rebel; do echo $i && ssh root@$i "transactional-update rollback last && reboot"; done
483
```
484
485
Updates on the central webUI host openqa.opensuse.org can be rolled back by using either older variants of packages that receive maintenance updates or using the locally cached packages in e.g. /var/cache/zypp/packages/devel_openQA/noarch using `zypper in --oldpackage`, similar to https://github.com/os-autoinst/openQA/blob/master/script/openqa-rollback#L39
486 108 SLindoMansilla
487
#### Debugging qemu SUTs in openqa.opensuse.org
488
489
SUT: System Under Test
490
491
os-autoinst starts qemu with network type that doesn't allow access from the outside, so ssh is not possible. But, qemu is started with a VNC channel available from the host (the openQA-worker).
492
Running vncviewer inside a headless server is useless, but it is possible to use gate.opensuse.org as a jump host and SSH port forwarding to start vncviewer client from your desktop environment and connect to the VNC channel of the qemu SUT.
493
494
```
495
ssh -p 2213 -L LOCAL_PORT:WORKER_HOSTNAME:QEMU_VNC_PORT USERNAME@gate.opensuse.org
496
```
497
498
For example, if user **bernhard**, wants to connect to openqaworker7:11, and wants to use local port **43043**
499
Being the IP of openqaworker7 **192.168.112.12**
500
And the VNC channel port of openqa-worker@11 **6001** (5990 + 11)
501
502
##### 1. Create SSH tunnel with port forwarding
503
* on laptop shell 1: ssh -p 2213 -L 43043:192.168.112.12:6001 bernhard@gate.opensuse.org
504 1 alarrosa
* Keep shell open to keep the tunnel open and the port forwarding
505 108 SLindoMansilla
506 1 alarrosa
##### 2. Open vncviewer
507
* on laptop shell 2: vncviewer -Shared localhost:43043
508
* `-shared` is needed to not kick the VNC connection of os-autoinst. If it is kicked, the job will terminate and the qemu process will be killed.
509
510 109 okurz
### AArch64 specific configurations on o3
511 1 alarrosa
512 109 okurz
On o3, the aarch64 workers need additional configuration.
513
514 127 dheidler
#### Setup HugePages
515
516
You need to setup HugePages support to improve performances with qemu VM and to match current aarch64 `MACHINE` configuration.
517
For the D05 machine, the configuration is: `40` pages with a size of `1G`.
518
If there are some permissions issues on `/dev/hugepages/`, check https://progress.opensuse.org/issues/53234
519
520 126 dheidler
### o3 s390 workers
521
522
The s390 workers for openQA are running within podman containers on openqaworker1.
523
The containers are started using systemd but the unit files are specific to the containers and will end up in a restart-loop if this fact is ignored. Whenever the containers are recreated, the systemd files have to be recreated.
524
525
The containers are started like this (for i=101…104):
526
527
```
528
i=101
529 209 mkittler
podman run -d -h openqaworker1_container --name openqaworker1_container_$i -p $(python3 -c"p=${i}*10+20003;print(f'{p}:{p}')") -e OPENQA_WORKER_INSTANCE=$i -v /opt/s390x_rebel_replacement:/etc/openqa -v /var/lib/openqa/share:/var/lib/openqa/share registry.opensuse.org/devel/openqa/containers15.4/openqa_worker:latest
530 216 dheidler
(cd /etc/systemd/system/; podman generate systemd -f -n --new openqaworker1_container_$i --restart-policy always)
531 109 okurz
systemctl daemon-reload
532 1 alarrosa
systemctl enable container-openqaworker1_container_$i
533 209 mkittler
```
534
535
To restart and permanently enable all workers at once:
536
```
537 217 dheidler
for i in {101..104} ; do systemctl stop container-openqaworker1_container_$i ; done
538 209 mkittler
podman rm -f openqaworker1_container_{101..104}
539
for i in {101..104} ; do podman run -d -h openqaworker1_container --name openqaworker1_container_$i -p $(python3 -c"p=${i}*10+20003;print(f'{p}:{p}')") -e OPENQA_WORKER_INSTANCE=$i -v /opt/s390x_rebel_replacement:/etc/openqa -v /var/lib/openqa/share:/var/lib/openqa/share registry.opensuse.org/devel/openqa/containers15.4/openqa_worker:latest ; done
540 216 dheidler
for i in {101..104} ; do (cd /etc/systemd/system/; podman generate systemd -f -n --new openqaworker1_container_$i --restart-policy always) ; done
541 209 mkittler
systemctl daemon-reload
542
for i in {101..104} ; systemctl enable container-openqaworker1_container_$i && systemctl restart container-openqaworker1_container_$i ; done
543 109 okurz
```
544
545 210 mkittler
Initial ticket when the setup was created: https://progress.opensuse.org/issues/97751
546
547 133 okurz
As alternative s390x workers can run on the host "rebel" as well. Be aware that openQA workers accessing the same s390x instances must not run in parallel so only enable one worker instance per s390x instance at a time (See https://progress.opensuse.org/issues/97658 for details).
548
549 121 okurz
### Monitoring
550
551
There is an internal munin instance on o3. Anyone wanting to look at the HTML pages, do this:
552
```
553
rsync -a o3:/srv/www/htdocs/munin ~/o3-munin/ 
554
```
555
(where "o3" is configured in your ssh config of course)
556
557 183 okurz
## Hotfixing
558
559
Applying hotfixes, e.g. patches from an os-autoinst pull requests to O3 workers can be applied like this for a pull request <pr_id>:
560
561
```
562
for i in openqaworker1 openqaworker4 openqaworker7 imagetester rebel; do echo $i && ssh root@$i "(transactional-update run /bin/sh -c \"curl -sS https://patch-diff.githubusercontent.com/raw/os-autoinst/os-autoinst/pull/${pr_id}.patch | patch -p1 --directory=/usr/lib/os-autoinst\" && reboot) || curl -sS https://patch-diff.githubusercontent.com/raw/os-autoinst/os-autoinst/pull/${pr_id}.patch | patch -p1 --directory=/usr/lib/os-autoinst" ; done
563
```
564
565
Hotpatching on all OSD workers with the same <pr_id> as above with something like
566
567
```
568
sudo salt --no-color --state-output=changes -C 'G@roles:worker' cmd.run 'curl -sS https://patch-diff.githubusercontent.com/raw/os-autoinst/os-autoinst/pull/${pr_id}.patch | patch -p1 --directory=/usr/lib/os-autoinst'
569
```
570
571 89 ggardet_arm
## Mitigation of boot failure or disk issues
572
573
### Worker stuck in recovery
574
575
Check disk health and consider manual fixup of mount points, e.g.:
576
577
```
578
test -e /dev/md/openqa || lsblk -n | grep -v nvme | grep "/$" && mdadm --create /dev/md/openqa --level=0 --force --raid-devices=$(ls /dev/nvme?n1 | wc -l) --run /dev/nvme?n1 || mdadm --create /dev/md/openqa --level=0 --force --raid-devices=1 --run /dev/nvme0n1p3
579
```
580
581 106 okurz
## PPC specific configurations
582
583 214 okurz
In one case it was necessary to disable snapshots for petitboot with `nvram -p default --update-config "petitboot,snapshots?=false"` to prevent a race condition between dm_raid and btrfs trying to discover bootable devices (#68053#note-25). In another case https://bugzilla.opensuse.org/show_bug.cgi?id=1174166 caused the boot entries to be not properly discovered and it was necessary to prevent grub from trying to update the according sections (#68053#note-31).
584 89 ggardet_arm
585 84 okurz
## Moving worker from osd to o3
586
587
* Ensure system management, e.g. over IPMI works. This is untouched by the following steps and can be used during the process for recovery and setup
588
* Ensure network is configured for DHCP
589
* Instruct SUSE-IT to change VLAN for machine from 2 to 662 (example: https://infra.nue.suse.com/SelfService/Display.html?id=16458)
590
* Remove from osd:
591
592
```
593
salt-key -y -d openqaworker7.suse.de
594
```
595
596
* Add entry on o3 to `/etc/dnsmasq.d/openqa.conf` with MAC address, e.g.
597
598
```
599
dhcp-host=54:ab:3a:24:34:b8,openqaworker7
600
```
601
602
* Add entry to `/etc/hosts` which dnsmasq picks up to give out a DHCP lease, e.g.
603
604
```
605
192.168.112.12   openqaworker7.openqanet.opensuse.org openqaworker7
606
```
607
608 85 okurz
* Adapt NFS mount point
609
610
```
611
sed -i '/openqa\.suse\.de/d' /etc/fstab && echo 'openqa1-opensuse:/ /var/lib/openqa/share nfs4 ro,fsc 0 0' >> /etc/fstab
612
```
613
614 84 okurz
* Reload dnsmasq with `systemctl restart dnsmasq`
615
* Restart network on machine (over IMPI) using `systemctl restart network` and monitor in o3:`journalctl -f -u dnsmasq` until address is assigned, e.g.:
616
617
```
618
Feb 29 10:48:30 ariel dnsmasq[28105]: read /etc/hosts - 30 addresses
619
Feb 29 10:48:54 ariel dnsmasq-dhcp[28105]: DHCPREQUEST(eth1) 10.160.1.101 54:ab:3a:24:34:b8
620
Feb 29 10:48:54 ariel dnsmasq-dhcp[28105]: DHCPNAK(eth1) 10.160.1.101 54:ab:3a:24:34:b8 wrong network
621
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPDISCOVER(eth1) 54:ab:3a:24:34:b8
622
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPOFFER(eth1) 192.168.112.12 54:ab:3a:24:34:b8
623
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPREQUEST(eth1) 192.168.112.12 54:ab:3a:24:34:b8
624
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPACK(eth1) 192.168.112.12 54:ab:3a:24:34:b8 openqaworker7
625 85 okurz
```
626
627
* Ensure all mountpoints up
628
629
```
630
mount -a
631 84 okurz
```
632
633
* Change root password to o3 one
634 86 okurz
* Allow ssh password authentication: `sed -i 's/^PasswordAuthentication/#&/' /etc/ssh/sshd_config && systemctl restart sshd`
635 84 okurz
* Add personal ssh key to machine, e.g. openqaworker7:/root/.ssh/authorized_keys
636
* Update /etc/openqa/client.conf with the same key as used on other workers for "openqa1-opensuse"
637
* Update /etc/openqa/workers.ini with similar config as used on other workers, e.g. based on openqaworker4, example:
638
639
```
640
# diff -Naur /etc/openqa/workers.ini{.osd,}
641
--- /etc/openqa/workers.ini.osd 2020-02-29 15:21:47.737998821 +0100
642
+++ /etc/openqa/workers.ini     2020-02-29 15:22:53.334464958 +0100
643
@@ -1,17 +1,10 @@
644
-# This file is generated by salt - don't touch
645
-# Hosted on https://gitlab.suse.de/openqa/salt-pillars-openqa
646
-# numofworkers: 10
647
-
648
 [global]
649
-HOST=openqa.suse.de
650
-CACHEDIRECTORY=/var/lib/openqa/cache
651
-LOG_LEVEL=debug
652
-WORKER_CLASS=qemu_x86_64,qemu_x86_64_staging,tap,openqaworker7
653
-WORKER_HOSTNAME=10.160.1.101
654
-
655
-[1]
656
-WORKER_CLASS=qemu_x86_64,qemu_x86_64_staging,tap,qemu_x86_64_ibft,openqaworker7
657
+HOST=http://openqa1-opensuse
658
+WORKER_HOSTNAME=192.168.112.12
659
+CACHEDIRECTORY = /var/lib/openqa/cache
660
+CACHELIMIT = 50
661
+WORKER_CLASS = openqaworker7,qemu_x86_64
662
663
-[openqa.suse.de]
664
-TESTPOOLSERVER = rsync://openqa.suse.de/tests
665
+[http://openqa1-opensuse]
666
+TESTPOOLSERVER = rsync://openqa1-opensuse/tests
667
```
668
669
* Remove OSD specifics
670
671
```
672
systemctl disable --now auto-update.timer salt-minion telegraf
673
for i in  NPI SUSE_CA telegraf-monitoring; do zypper rr $i; done
674
zypper -n dup --force-resolution --allow-vendor-change
675
```
676
677
* If the machine is not a transactional-server one has the following options: Keep as is and handle like power8 (also not transactional), enable transactional updates w/o root being r/o, change to root being r/o on-the-fly, reinstall as transactional. At least option 2 is suggested, enable transactional updates:
678
679
```
680
zypper -n in transactional-update
681
systemctl enable --now transactional-update.timer rebootmgr
682
```
683
684
* Enable apparmor
685
686
```
687
zypper -n in apparmor-utils
688
systemctl unmask apparmor
689
systemctl enable --now apparmor
690
```
691
692
* Switch firewall from SuSEfirewall2 to firewalld
693
694
```
695
zypper -n in firewalld && zypper -n rm SuSEfirewall2
696
systemctl enable --now firewalld
697
firewall-cmd --zone=trusted --add-interface=br1
698
firewall-cmd --set-default-zone trusted
699
firewall-cmd --zone=trusted --add-masquerade
700
```
701
702
* Copy over special openSUSE UEFI staging images, see #63382
703
* Check operation with a single openQA worker instance:
704
705
```
706
systemctl enable --now openqa-worker.target openqa-worker@1
707
```
708
709
* Test with an openQA job cloned from a production job, e.g. for openqaworker7
710
711
```
712
openqa-clone-job --within-instance https://openqa.opensuse.org/t${id} WORKER_CLASS=openqaworker7
713
```
714
715
* After the latest openQA job could successfully finish enable more worker instances
716
717
```
718
systemctl unmask openqa-worker@{2..14} && systemctl enable --now openqa-worker@{2..14}
719
```
720
721
* Monitor if nightly update works, e.g. look for journal entry:
722
723
```
724
Mar 01 00:08:26 openqaworker7 transactional-update[10933]: Calling zypper up
725
726
Mar 01 00:08:51 openqaworker7 transactional-update[10933]: transactional-update finished - informed rebootmgr
727
Mar 01 00:08:51 openqaworker7 systemd[1]: Started Update the system.
728
729
Mar 01 03:30:00 openqaworker7 rebootmgrd[40760]: rebootmgr: reboot triggered now!
730
731
Mar 01 03:36:32 openqaworker7 systemd[1]: Reached target openQA Worker.
732
```
733 93 okurz
734 95 okurz
## Distribution upgrades
735
736 131 livdywan
**Note:** Performing the upgrade differs slightly depending on the host setup:
737 138 okurz
* On hosts with a writeable `/` you need to enter a root shell i.e. `sudo bash`
738
* Transactional hosts require that you use `transactional-update shell` thereby creating a snapshot which is applied after a reboot, optionally using `--continue` if you want to make further changes to an existing snapshot
739
* Depending on available space it might be necessary to cleanup space before conducting the upgrade, e.g. use `snapper rm <N..M>` to delete older root btrfs snapshots, cleanup unneeded packages, e.g. with https://github.com/okurz/scripts/blob/master/zypper-rm-orphaned and https://github.com/okurz/scripts/blob/master/zypper-rm-unneeded
740 196 okurz
* Upgrades might pull in too many new packages so better crosscheck with `zypper … dup … --no-recommends`
741 138 okurz
* Consider using https://github.com/okurz/auto-upgrade/blob/master/auto-upgrade or manual (*Tip**: Run this in `screen -d -r || screen` and use e.g. `sudo bash`):
742 101 okurz
743 95 okurz
```
744 137 okurz
new_version=15.3 # Specify the target release
745 1 alarrosa
746 98 livdywan
# Change the release via the special $releasever
747 1 alarrosa
. /etc/os-release
748
sed -i -e "s/${VERSION_ID}/\$releasever/g" /etc/zypp/repos.d/*
749
zypper --releasever=$new_version ref
750
test -f /etc/openqa/openqa.ini && sudo -u geekotest /opt/openqa-scripts/dump-psql
751 195 mkittler
systemctl stop openqa-continuous-update.timer  # it would interfere, e.g. revert the previous zypper ref call
752 1 alarrosa
zypper -n --releasever=$new_version dup --auto-agree-with-licenses --replacefiles --download-in-advance
753
754
# Check config files for relevant changes
755 95 okurz
rpmconfigcheck
756
for i in $(cat /var/adm/rpmconfigcheck) ; do vimdiff ${i%.rpm*} $i ; done
757
rm $(cat /var/adm/rpmconfigcheck)
758
759 1 alarrosa
reboot
760
systemctl --failed
761 98 livdywan
```
762
763 138 okurz
* Ensure that the upgrade was really successful, e.g. /etc/os-release should show the new version, the above `zypper dup` command should show no more pending actions
764
* Crosscheck for any obvious alerts, pipelines failing, user reports, etc.
765 201 okurz
* On any severe problems consider a complete rollback of the upgrade or also partial downgrade of packages, e.g. force-install older version of packages and zypper locks until an issue is fixed
766 138 okurz
* Monitor for successful openQA jobs on the host
767 132 livdywan
768 213 okurz
## Remote management with IPMI and BMC tools
769 95 okurz
770 119 livdywan
o3 and osd worker machines are controllable over IPMI from within the SUSE network, see [openqa/workerconf.sls](https://gitlab.suse.de/openqa/salt-pillars-openqa/-/blob/master/openqa/workerconf.sls) for the commands.
771
It is recommended to use [shell aliases](https://gitlab.suse.de/openqa/salt-pillars-openqa#get-ipmi-definition-aliases) for convenience.
772 109 okurz
773
`ipmitool` can sometimes behave unreliably. It seems (to okurz) as if ipmitool version ipmitool-1.8.18+git20200916.1245aaa387dc from openSUSE Tumbleweed or Factory or the "systemsmanagement" OBS repo is more reliable than the version supplied with openSUSE Leap 15.2 (See #80544#note-14) and given a stable internet connection it is certainly possible to have a consistent serial console experience.
774
775 110 okurz
To ensure that remotely controlled machines power on automatically after a power loss ensure to set the power restory policy to "previous", especially for new machines. Using https://gitlab.suse.de/openqa/salt-pillars-openqa/#get-ipmi-definition-aliases :
776
777
```
778
IFS=$'\n'; for i in $(sed 's/^alias .*="\(.*\)"/\1/' ~/.openqa_ipmi_aliases); do eval "$i" chassis policy previous; done
779
```
780
781 212 okurz
### Accessing old BMCs with "Java iKVM Viewer" when ipmitool does not work, e.g. imagetester
782 213 okurz
Imagetester can't output anything over SOL. (Likely the problem is a too old BMC version. On another system, qamaster, in 2022-10 we upgraded the BMC version (#117679#note-14) which allowed us to use ipmitool.) Therefore it is necessary to access it over the integrated iKVM console. Unfortunately java-webstart is somewhat broken and requires some extra steps to work:
783 129 nicksinger
784 163 mkittler
1. Access the web interface of the BMC at http://imagetester-ipmi.suse.de and login via the IPMI credentials mentioned in the salt pillars repository.
785
2. Click on the preview image of the "Remote Console Preview" and download the according "launch.jnlp" webstart script.
786 129 nicksinger
3. Grab the required dependencies with curl and place them in a local directory:
787
788
```
789
mkdir /tmp/ikvm
790 163 mkittler
curl -k https://imagetester-ipmi.suse.de:443/liblinux_x86_64__V1.0.3.jar.pack.gz > /tmp/ikvm/liblinux_x86_64__V1.0.3.jar.pack.gz
791
curl -k https://imagetester-ipmi.suse.de:443/iKVM__V1.69.13.0x0.jar.pack.gz > /tmp/ikvm/iKVM__V1.69.13.0x0.jar.pack.gz
792 129 nicksinger
```
793
794 163 mkittler
4. Open the previous downloaded "launch.jnlp" and replace the IP in the first line from e.g. `<jnlp spec="1.0+" codebase="https://10.160.65.195:443/">` to `<jnlp spec="1.0+" codebase="http://127.0.0.1:8080/">`
795
5. Launch some kind of web server which can serve the previously downloaded dependencies for javaws (from /tmp/ikvm). In this example we use python: `python3 -m http.server 8080`
796 129 nicksinger
6. Now you can finally launch the webstart application from your modifies "launch.jnlp" file in a second console: `javaws -nosecurity -jnlp ~/Downloads/launch.jnlp`
797
  * It will ask you how to run the application. You can run it in a sandbox and everything still works
798
7. You should see the monitor output of imagetester now. "Virtual Storage" is also working which allows you to mount an ISO over this remote connection. 
799
800
*Also check https://progress.opensuse.org/issues/96719#note-27 where this was discovered. If you have questions or remarks you can ping @nicksinger*
801 128 okurz
802 187 okurz
### Accessing java based remote control clients
803
804
We also managed to start the java based remote control client from pages like
805 1 alarrosa
https://openqaworker4-ipmi.suse.de/ with `javaws.itweb jviewer.jnlp` from icedtea-web which offers virtual media redirection so one can select a local ISO file as installation medium.
806 187 okurz
807 213 okurz
Disclaimer: https://openwebstart.com/ explains that "Java Web Start (JWS) was deprecated in Java 9, and starting with Java 11, Oracle removed JWS from their JDK distributions". So an alternative to the outdated icedtea-web with openwebstart can be used. okurz managed the following way downloading the openwebstart .deb file from https://openwebstart.com/download/ and converted with alien:
808 1 alarrosa
809 213 okurz
```
810
wget https://github.com/karakun/OpenWebStart/releases/download/v1.6.0/OpenWebStart_linux_1_6_0.deb
811
sudo zypper in https://download.opensuse.org/repositories/home:/phoenix.os:/dup/15.4/noarch/alien-8.95-lp154.3.1.noarch.rpm
812
sudo alien --to-rpm --verbose ./OpenWebStart_linux_1_6_0.deb
813
sudo zypper in ./openwebstart-1.6.0-2.noarch.rpm
814
/opt/OpenWebStart/javaws ~/Downloads/launch.jnlp
815
```
816
817
In some cases we hit an error message "no iKVM64 in java.library.path" (see #117679#note-15 for details, same problem regardless of JDK version). For a local archive one can do `LD_LIBRARY_PATH=. ./iKVM`, for a webstart application there is no known solution. As workaround it is suggested to use downloaded applications from supermicro. Download "IPMIView" from https://www.supermicro.com/en/support/resources/downloadcenter/smsdownload, extract the archive, call `./IPMIView20` and connect to the desired system.
818
819
If you use your system provided JRE then you might hit the error "Certificates do not conform to algorithm constraints". Running in a terminal will tell provide more details, e.g. about SHA/RSA key lengths. Removing the line starting with `jdk.certpath.disabledAlgorithms` in /etc/crypto-policies/back-ends/java.config can fix that.
820
821
An alternative to "IPMIView" is "SMCIPMITool" from https://www.supermicro.com/en/support/resources/downloadcenter/smsdownload . This also allows to connect to systems and also use something like mounting virtual media, example:
822
823
```
824
$ jre/bin/java -jar ./SMCIPMITool.jar 10.162.0.4 … shell
825
826
10.162.0.4 X9DR3-LN4F+ (S0/G0,172w) 13:42 SIM(WA)>vmwa dev2iso /home/okurz/local/os-autoinst/os-autoinst/t/data/Core-7.2.iso
827
Mounting ISO file: /home/okurz/local/os-autoinst/os-autoinst/t/data/Core-7.2.iso
828
Device 2 :VM Plug-In OK!!
829
```
830 187 okurz
831 109 okurz
## openQA infrastructure needs (o3 + osd)
832
833 115 okurz
TL;DR: new OSD ARM workers needed, missing redundancy for o3-ppc, rest is needing replacement as nearly all current hardware is out of vendor provided maintenance (as of 2021-05), SSD storage for o3 would be good
834 93 okurz
835
2020-03: SUSE IT (EngInfra) provided us more space for O3 but we have only slow rotating-disk storage. Performance could be improved by providing SSD storage.
836
837
The most time and effort we currently struggle with storage space for OSD (openqa.suse.de) ~~both OSD (openqa.suse.de) as well as O3 (openqa.opensuse.org) (2020-03: Situation on o3 resolved with more storage provided by SUSE IT)~~. Both instances (OSD + O3) are using precious netapp-storage but there is currently no better approach to use different, external storage. An increase of the available space would be appreciated, ~~o3 being more important right now than osd,~~ see https://progress.opensuse.org/issues/57494 for details. Graphs like 
838
https://stats.openqa-monitor.qa.suse.de/d/nRDab3Jiz/openqa-jobs-test?orgId=1&from=1578343509900&to=1578653794173&fullscreen&panelId=12 show how usual test backlogs are worked on within OSD by architecture. It can be seen that both the ppc64le and aarch64 backlogs are reduced fast so we do not need more ppc64le or aarch64 machines. However, we have a stability problem with all three aarch64 workers. Potentially new machine(s) could help, see https://progress.opensuse.org/issues/41882 for details.
839 107 okurz
840 125 okurz
With number of workers and parallel processed tests as well as with the increased number of products tested on OSD and users using the system the workload on OSD constantly increases. CPU load alerts had been seen recently in #96713 and the higher load is visible in https://monitor.qa.suse.de/d/WebuiDb/webui-summary?viewPanel=25 . From time to time should increase the number of CPU cores on the OSD VM due to the higher usage.
841
842 117 okurz
## Setup guide for new machines
843
844 1 alarrosa
* Change IPMI/BMC passwords to use our common passwords instead of default IPMI
845 188 okurz
* OSD: Make sure to set /etc/salt/minion_id to the FQDN (see #90875#note-2 for reference)
846
* OSD: Add to salt using https://gitlab.suse.de/openqa/salt-states-openqa
847 203 mkittler
* o3: Install with transactional-update role, then
848 188 okurz
849
```
850 189 okurz
echo "requires:openQA-worker" > /etc/zypp/systemCheck.d/openqa.check
851 188 okurz
sed -i 's@/ btrfs ro@/ btrfs rw@' /etc/fstab
852
mount -o rw,remount /
853 1 alarrosa
btrfs property set -ts / ro false
854 203 mkittler
855 205 favogt
zypper -n in openQA-worker openQA-continuous-update os-autoinst-distri-opensuse-deps swtpm # openQA worker services plus dependencies for openSUSE distri
856 203 mkittler
zypper -n in ffmpeg  # for using external video encoder as it is already configured on some machines like ow19, ow20 and power8
857 206 favogt
zypper -n in nfs-client  # For /var/lib/openqa/share
858 203 mkittler
zypper -n in bash-completion vim htop strace systemd-coredump iputils ping tcpdump host  # for general tinkering
859 206 favogt
860
echo "openqa1-opensuse:/ /var/lib/openqa/share nfs4 noauto,nofail,retry=30,ro,x-systemd.automount,x-systemd.device-timeout=10m,x-systemd.mount-timeout=30m 0 0" >> /etc/fstab
861 203 mkittler
862
# configure /etc/openqa/client.conf and /etc/openqa/workers.ini, then enable the desired number of worker slots, e.g.:
863
systemctl enable --now openqa-worker-auto-restart@{1..30}.service openqa-reload-worker-auto-restart@{1..30}.path openqa-auto-update.timer openqa-continuous-update.timer openqa-worker-cacheservice.service openqa-worker-cacheservice-minion.service
864 1 alarrosa
```
865 205 favogt
866
Also copy the OVMF images for staging tests (`/usr/share/qemu/*staging*`) from other workers. Those files are from the `devel` flavor of the OVMF package built in stagings and rings, e.g. https://build.opensuse.org/package/show/openSUSE:Factory:Rings:1-MinimalX/ovmf, just renamed.
867 117 okurz
868 202 mkittler
### UEFI boot via iPXE from o3 workers
869
Before going into iPXE-specifics, note that the MAC address of new o3 workers generally needs to be added to `/etc/dnsmasq.d/openqa.conf` and an IP address needs to be configured in `/etc/hosts` (both files are on ariel).
870
871
---
872
873
There's a PXE setup as part of `dnsmasq.service` running on ariel. It is currently configured to serve a legacy-only boot menu utilized by some tests. After following these steps, please restore this setup so tests can continue to use it.
874
875
First, make a file that contains the iPXE commands to boot available via some HTTP server. Here's how the file could look like for installing Leap 15.4 with AutoYaST:
876
```
877
#!ipxe
878
kernel http://download.opensuse.org/distribution/leap/15.4/repo/oss/boot/x86_64/loader/linux initrd=initrd console=tty0 console=ttyS1,115200 install=http://download.opensuse.org/distribution/leap/15.4/repo/oss/ autoyast=http://martchus.no-ip.biz/ipxe/ay-openqa-worker.xml rootpassword=…
879 204 mkittler
initrd http://download.opensuse.org/distribution/leap/15.4/repo/oss/boot/x86_64/loader/initrd
880 202 mkittler
boot
881
```
882
883
Then, setup the build of an iPXE UEFI image like explained on https://en.opensuse.org/SDB:IPXE_booting#Setup:
884
```
885
git clone https://github.com/ipxe/ipxe.git
886
cd ipxe
887
echo "#!ipxe
888
dhcp
889
chain http://martchus.no-ip.biz/ipxe/leap-15.4" > myscript.ipxe
890
```
891
892
As you can see, this build script contains the URL to the previously setup file. Of course commands could be built directly into the image but then you'd need to rebuild/redeploy the image all the time you want to make a change (instead of just editing a file on your HTTP server).
893
894
To conduct the build of the image, run:
895
```
896
cd src
897
make EMBED=../myscript.ipxe NO_WERROR=1 bin/ipxe.lkrn bin/ipxe.pxe bin-i386-efi/ipxe.efi bin-x86_64-efi/ipxe.efi
898
```
899
900
Note that these build options are taken from https://github.com/archlinux/svntogit-community/blob/packages/ipxe/trunk/PKGBUILD#L58 because when attempting to build on Tumbleweed I've otherwise ran into build errors.
901
902
Then you can copy the files to ariel and move them to a location somewhere under `/srv/tftpboot`:
903
```
904
# on build host
905
rsync bin-x86_64-efi/ipxe.efi openqa.opensuse.org:/home/martchus/ipxe.efi
906
# on ariel
907
sudo cp /home/martchus/ipxe.efi /srv/tftpboot/ipxe-own-build/ipxe.efi
908
```
909
910
Then configure the use of the image in `/etc/dnsmasq.d/pxeboot.conf` on ariel. Temporarily comment-out possibly disturbing lines and make sure the following lines are present:
911
```
912
enable-tftp
913
tftp-root=/srv/tftpboot
914
pxe-prompt="Press F8 for menu. foobar", 10
915
dhcp-match=set:efi-x86_64,option:client-arch,7
916
dhcp-match=set:efi-x86_64,option:client-arch,9
917
dhcp-match=set:efi-x86,option:client-arch,6
918
dhcp-match=set:bios,option:client-arch,0
919
dhcp-boot=tag:efi-x86_64,ipxe-own-build/ipxe.efi
920
```
921
922
Then run `systemctl restart dnsmasq.service` to apply and `journalctl -fu dnsmasq.service` to see what's going on.
923
924 215 okurz
### Installation of machines being able to run kexec
925
926
If it is possible to directly execute "kexec" on a machine, e.g. on ppc64le machines running petitboot, it is possible to start a remote network installation following https://en.opensuse.org/SDB:Network_installation#Start_the_Installation . See #119008#note-6 for an example.
927
928
929 120 okurz
## Take machines out of salt-controlled production
930
931
E.g. for investigation or development or manual maintenance work
932 118 okurz
933
```
934
ssh osd "sudo salt-key -y -d $hostname"
935 179 nicksinger
ssh $hostname "sudo systemctl disable --now telegraf $(systemctl list-units | grep openqa-worker-auto-restart | cut -d "." -f 1 | xargs)"
936 118 okurz
```
937
938 174 mkittler
Checkout [salt-states-openqa's examples](https://gitlab.suse.de/openqa/salt-states-openqa/-/blob/master/README.md#examples) for systemd commands to start and stop workers.
939
940 173 mkittler
## Bring back machines into salt-controlled production
941 118 okurz
942
```
943 124 dheidler
ssh osd "sudo salt-key -a $hostname && sudo salt --state-output=changes $hostname state.apply"
944 118 okurz
```
945
946
Depending on your actions further manual cleanup might be necessary, e.g. `ssh $hostname "sudo systemctl unmask telegraf salt-minion"`
947 117 okurz
948 175 okurz
## Use a production host for testing backend changes locally, e.g. svirt, powerVM, IPMI bare-metal, s390x, etc.
949 172 mkittler
950 177 mkittler
0. Find out which type of worker slot you need for the specific job you want to run, e.g. by checking which worker slots were used for previous runs of the job on OSD or by looking for the job's worker class in the [workers table](https://openqa.suse.de/admin/workers).
951 172 mkittler
1. Configure an additional worker slot in your local `workers.ini` using worker settings from the corresponding production worker. The production worker config can be found in [workerconf.sls](https://gitlab.suse.de/openqa/salt-pillars-openqa/-/blob/master/openqa/workerconf.sls) or on the hosts themselves.
952 1 alarrosa
2. Take out the corresponding worker slot from production using the systemd commands mentioned in [salt-states-openqa's examples](https://gitlab.suse.de/openqa/salt-states-openqa/-/blob/master/README.md#examples). This is important to prevent multiple jobs from using the same svirt host.
953 176 mkittler
3. Start the locally configured worker slot and clone/run some jobs.
954 172 mkittler
4. When you're done, bring back the production worker slots using the systemd commands mentioned in [salt-states-openqa's examples](https://gitlab.suse.de/openqa/salt-states-openqa/-/blob/master/README.md#examples).
955
956 178 mkittler
### Alternatives
957
It is also possible to test svirt backend changes fully locally, at least when running tests via KVM is sufficient. Checkout [os-autoinst's documentation](https://github.com/os-autoinst/os-autoinst/blob/master/doc/backends.md#svirt=) for further details.
958
959 122 okurz
## Backup
960
961 134 okurz
Both openqa.opensuse.org and openqa.suse.de run on virtual machine clusters that provide redundancy and differential backup using snapshotting of the involved storage. SUSE-IT currently provides backups going back up to 3 days with two daily backups conducted at 23:10Z and 11:00Z. With this it is possible in cases of catastrophic data loss to recover (raise ticket over https://sd.suse.com in that case). Additionally automatic backup for the o3 webui host introduced with https://gitlab.suse.de/okurz/backup-server-salt/tree/master/rsnapshot covering so far /etc and the SQL database dumps. Fixed assets and testresults are backed up on storage.qa.suse.de (see https://gitlab.suse.de/openqa/salt-states-openqa/-/merge_requests/612)
962 122 okurz
963 139 okurz
### openQA database backups
964
965
Database backups of o3+osd are available on backup.qa.suse.de, acessible over ssh, same credentials as for the OSD infrastructure
966
967 144 livdywan
### Fallback deployment on AWS
968
969
To get an instance running from a backup in case of a disaster, one can be created on AWS with this configuration:
970 149 tinita
971
#### Launch instance
972
973 155 tinita
##### Web Interface, from scratch (only if necessary, otherwise just use the template below)
974 149 tinita
975 144 livdywan
- Ensure your region is **Frankfurt, Germany**
976
- Pick a **t3.large** with `openSUSE Leap` on AWS Marketplace
977 146 mkittler
- Add two disks
978
    - 10 GiB for the root filesystem should be sufficient (can be easily extended later if needed)
979
    - The OSD database alone needs > 30 GiB and results plus assets will also need a lot (e.g. > 4 GiB for TW snapshot ISO) so take at least 100 GiB for the 2nd drive
980 144 livdywan
- The security group needs to include ssh and http
981
- Add `openqa_created_by`, `openqa_ttl` and `team:qa-tools` tags
982 149 tinita
983
##### Launch from a template
984
985 151 tinita
Note: When you modify the template (creating a new version), be sure to set the new version as the default.
986
987 155 tinita
- Go to the [openQA-webUI-openSUSE-Leap](https://eu-central-1.console.aws.amazon.com/ec2/v2/home?region=eu-central-1#LaunchTemplateDetails:launchTemplateId=lt-002dfbcbd2f818e4c) Template
988 154 tinita
- Select "Actions - Launch instance from template"
989 149 tinita
- Choose your key pair
990
- Click "Launch instance"
991 1 alarrosa
992
###### Command line
993 151 tinita
994 156 tinita
For configuring aws cli, see [below](https://progress.opensuse.org/projects/openqav3/wiki/Wiki#Configure-aws-cli)
995
996
[aws run-instances docs](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-launch-templates.html)
997 149 tinita
998
    aws ec2 run-instances --launch-template LaunchTemplateId=lt-002dfbcbd2f818e4c --key-name <your-keyname>
999 150 tinita
    # or
1000
    aws ec2 run-instances --launch-template LaunchTemplateName=openQA-webUI-openSUSE-Leap --key-name <your-keyname>
1001 149 tinita
1002
For this you have to create a key pair first, if you haven't done so.
1003
Save the result and look for the `InstanceId`.
1004 144 livdywan
1005
#### Transfer keys
1006
1007
Since an instance is always created with a single key, public keys of all users need to be deployed by whoever owns that key.
1008
1009
**Note**: `osd2` refers to the instance created above. Replace with the instance IP or add an alias to your SSH config.
1010
1011
    ssh openqa.suse.de "sudo su -c 'cat /home/*/.ssh/authorized_keys'" | ssh ec2-user@osd2 "cat - >> ~/.ssh/authorized_keys"
1012
1013
#### Bootstrapping
1014
1015
```
1016
ssh osd2
1017 169 osukup
sudo su
1018 145 mkittler
parted --script /dev/nvme1n1 mklabel gpt && parted --script /dev/nvme1n1 mkpart ext4 4096s 100%
1019
mkfs.ext4 /dev/nvme1n1p1
1020 160 osukup
vim /etc/fstab # add mount to fstab
1021 145 mkittler
mkdir /space && mount /dev/nvme1n1p1 /space
1022 158 okurz
mkdir -p /space/pgsql/data
1023
mkdir -p /var/lib/pgsql
1024
ln -s /space/pgsql/data /var/lib/pgsql/data
1025 169 osukup
zypper in postgresql-server # needed for user.group
1026
chown -R postgres.postgres /space/pgsql # without correct group postgresql.service fails
1027
mkdir -p /space/openqa
1028
mkdir -p /var/lib/openqa
1029 171 osukup
mount /space/openqa /var/lib/openqa -o bind # open also requires a lot of space 
1030 161 osukup
curl -s https://raw.githubusercontent.com/os-autoinst/openQA/master/script/openqa-bootstrap | bash -x
1031 152 tinita
1032
ssh -A backup.qa.suse.de
1033 145 mkittler
rsync --progress /home/rsnapshot/alpha.0/openqa.suse.de/var/lib/openqa/SQL-DUMPS/2022-02-08.dump ec2-user@osd2:/tmp
1034 1 alarrosa
1035
ssh osd2
1036 147 mkittler
sudo -u postgres createdb -O geekotest openqa-osd # create pristine db for OSD import (to avoid conflicts with existing data)
1037 1 alarrosa
sudo -u geekotest pg_restore -d openqa-osd /tmp/2022-02-08.dump # import data, will take a while (22m is a realistic time)
1038 153 tinita
vim /etc/openqa/openqa.ini # change auth from Fake to OpenID
1039 1 alarrosa
vim /etc/openqa/database.ini # change database to openqa-osd
1040 170 osukup
vim /etc/openqa/client.conf # change key and secret to correct one
1041 158 okurz
systemctl restart openqa-webui
1042 1 alarrosa
```
1043 155 tinita
1044
##### Configure aws cli
1045
1046
You can use the command
1047
1048
    aws configure
1049
1050
but it doesn't actually help you with the possible values, so you can just create the file yourself like this:
1051
1052
    % cat ~/.aws/config
1053
    [default]
1054
    region = eu-central-1
1055
    output = json
1056 157 tinita
    % cat ~/.aws/credentials
1057
    [default]
1058
    aws_access_key_id = ABCDE
1059 155 tinita
    aws_secret_access_key = FGHIJ
1060 144 livdywan
1061 109 okurz
## Best practices for infrastructure work
1062 107 okurz
1063
* Same as in OSD deployment we should look for failed grafana alerts if users report something suspicious
1064
* Collect all the information between "last good" and "first bad" and then also find the git diff in openqa/salt-states-openqa
1065
* Apply proper "scientific method" with written down hypotheses, experiments and conclusions in tickets, follow https://progress.opensuse.org/projects/openqav3/wiki#Further-decision-steps-working-on-test-issues
1066
* Keep salt states to describe what should *not* be there
1067
* Try out older btrfs snapshots in systems for crosschecking and boot with disabled salt. In the kernel cmdline append `systemd.mask=salt-minion.service`
1068
* Team should conduct a work backlog check on a daily base, e.g. look for urgent tickets related to infrastructure problems
1069 190 okurz
* For hardware component replacement, create EngInfra ticket for coordination, order replacement on private expenses and get reimbursed using https://intra.suse.net/company/company-news/department/finance/claim-expenses/claim-expenses/ or have order placed with the help of line managers, let the components be delivered to the according place, e.g. SUSE Nuremberg datacenter and inform EngInfra in ticket to have them conduct the physical component replacement
1070 191 okurz
* For ordering new machines follow https://mysuse.sharepoint.com/sites/SUSEBusinessCriticalLinux/Shared%20Documents/Hardware%20Order/E&I%20Hardware.pdf (get quotes from vendor, create ticket with procurement, CC osd-admins+mgriessmeier, wait for purchase order (PO) approval, order with vendor and ask them to include PO number in invoice)
1071 148 livdywan
* Prefer `reload` over `restart` where available e.g. `systemctl reload postgres` - in general `systemctl cat postgres` will show available commands for any service
1072 116 okurz
* Test reboot stability of machines with commands like in https://progress.opensuse.org/issues/78010#note-31 e.g.
1073
1074
```
1075
for run in {01..30}; do for host in $host; do echo -n "run: $run, $host: ping .. " && timeout -k 5 600 sh -c "until ping -c30 $host >/dev/null; do :; done" && echo -n "ok, ssh .. " && timeout -k 5 600 sh -c "until nc -z -w 1 $host 22; do :; done" && echo -n "ok, uptime/reboot: " && ssh $host "uptime && sudo reboot" && sleep 120 || break; done || break; done
1076
```