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okurz, 2023-08-01 11:22
Add workaround instructions for https://bugzilla.opensuse.org/show_bug.cgi?id=1212816 , unresponsive salt-minion

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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 needs clarification of open points within the ticket or is awaiting feedback from others or other systems (e.g. automated tests) 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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* *Regressions/Crashes*: 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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This is following the [scientific method](https://en.wikipedia.org/wiki/Scientific_method). It is suggested to use the characters *H* (hypothesis), *E* (experiment), *O* (observation), e.g. like this
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```
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* **H3** Fails because of changes in test infrastructure software, e.g. os-autoinst, openQA
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  * **H3.1** **REJECTED** Fails because of changes in openQA itself
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    * **E3.1-1** (First experiment for hypothesis 3.1) test on an openQA server with the openQA version of "last good"
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      * **O3.1-1-1** (First observation for first experiment for hypothesis 3) the test failed in the same way, reject *H3.1*
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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
352
353 78 nicksinger
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.
354 77 nicksinger
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.
355
356
### Setup
357
358
1. Get a shared disk for all your LPARs
359
  * Normally this can easily done by infra/gschlotter
360
  * Disks needs to be connected to all guests which should be able to network-boot
361
1. Boot a fully installed SLES on one of the LPARs to start preparing the shared-disk
362
1. Put a DOS partition table on the disk and create one single, large partition on there
363
1. Put a FS on there. Our first test was on ext2 and it worked flawlessly in our attempts
364
1. Install `zipl` (The s390x bootloader from IBM) on this partition
365
  * A simple and sufficient config can be found in [poo#33682](https://progress.opensuse.org/issues/33682)
366
1. clone [`qnipl`](https://github.com/nicksinger/dracut-qnipl) to your dracut modules (e.g. /usr/lib/dracut/modules.d/95qnipl)
367
1. Include the module named `qnipl` to your dracut modules for initramfs generation
368
  * e.g. in /etc/dracut.conf.d/99-qnipl.conf add: `add_dracutmodules+=qnipl`
369
1. Generate your initramfs (e.g. `dracut -f -a "url-lib qnipl" --no-hostonly-cmdline /tmp/custom_initramfs`)
370
  * Put the initramfs next to your kernel binary on the partition you want to prepare
371
1. From now on you can use `snipl` to boot any LPAR connected with this shared disk from network
372 263 okurz
  * 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=10.0.0.1/20 gateway=10.0.0.254 Nameserver=10.0.0.1 Domain=suse.de ssh=1"`
373 77 nicksinger
  * `--ossparms_scsiload` is then evaluated and used by `qnipl` to kexec into the installer with the (for the installer) needed parameters
374
375
### Further details
376
377 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!
378 84 okurz
379 109 okurz
# Infrastructure setup for o3 (openqa.opensuse.org) and osd (openqa.suse.de)
380 1 alarrosa
381 194 okurz
Both o3 and osd are hosted in SUSE data centers, mostly Nuremberg, Germany, and Prague, Czech Republic.
382 199 okurz
383 1 alarrosa
384 194 okurz
## o3 (openqa.opensuse.org)
385 109 okurz
386 263 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 more than 10 TB.
387 88 okurz
388 185 okurz
The o3 infrastructure is in detail described on https://github.com/os-autoinst/sync-and-trigger/blob/main/openqa-opensuse.md
389
390 141 okurz
### Accessing the o3 infrastructure
391
392 262 okurz
The o3 webui host as well the workers within the o3 infrastructure can be accessed over ssh by using `ssh -p 2214 gate.opensuse.org` (and `ssh -p 2213 gate.opensuse.org` for old-ariel). 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. 
393 141 okurz
394
To give access for a new user an existing admin can do the following:
395
396
```
397
sudo useradd -G users,trusted --create-home $user
398
echo "$ssh_key_from_user" | sudo tee -a /home/$user/.ssh/authorized_keys
399
```
400
401
#### SSH configuration
402
403 207 mkittler
To easily access all hosts behind the jump host you can use the following config for your ssh client (`~/.ssh/config`):
404 141 okurz
405
```
406
Host ariel
407
  HostName gate.opensuse.org
408 262 okurz
  Port 2214
409 141 okurz
410
# Note that %h as understood by -W needs the real host, aliases won't work:
411
# kex_exchange_identification: Connection closed by remote host
412
# Connection closed by UNKNOWN port 65535`
413
Host *.opensuse.org
414
  ProxyCommand ssh -q -A -x ariel -W %h:%p
415
```
416
417
**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.
418
419
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`.
420
421
**Notice:** Some machines are connected to the o3 openQA host from other networks and might need different ways of access, at time of writing:
422
423
* Remote (owner: @ggardet_arm):
424
 * ip-10-0-0-58
425
 * oss-cobbler-03
426
 * siodtw01 (for tests on Raspberry Pi 2,3,4)
427
428
### Manual command execution on o3 workers
429
430
To execute commands manually on all workers within the o3 infrastructure one can do for example the following:
431
432
```
433 264 okurz
hosts="aarch64 openqaworker4 openqaworker6 openqaworker7 openqaworker19 openqaworker20 openqaworker21 openqaworker22 openqaworker23 openqaworker24 openqaworker25 openqaworker26 openqaworker27 openqaworker28 openqaworker-arm21 openqaworker-arm22 qa-power8-3 rebel"
434
for i in $hosts; do echo $i && ssh root@$i "zypper -n dup && reboot" ; done
435 141 okurz
```
436 1 alarrosa
437 181 mkittler
```
438 264 okurz
for i in $hosts; do echo $i && ssh root@$i " echo 'ssh-rsa … …' >> /root/.ssh/authorized_keys " ; done
439 181 mkittler
```
440
441 1 alarrosa
mind the correct list of machines.
442 193 okurz
443
Formerly for true transactional servers we used:
444
445
```
446
for i in $hosts; do echo $i && ssh root@$i "(transactional-update -n dup || zypper -n dup) && reboot" ; done
447
```
448 141 okurz
449 91 okurz
### Automatic update of o3
450 92 okurz
451
o3 is automatically deployed on a daily base, that includes both the webUI host as well as the workers.
452 111 okurz
453
#### Automatic update of o3 webUI host
454
455 184 okurz
openqa.opensuse.org applies continuous updates of openQA related packages, conducts nightly updates of system packages and reboots automatically as required, see
456
http://open.qa/docs/#_automatic_system_upgrades_and_reboots_of_openqa_hosts
457
for details
458 111 okurz
459
#### Recurring automatic update of openQA workers
460
461 186 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.
462 111 okurz
463
This was for a number of reasons including:
464 109 okurz
465 96 okurz
* Getting all the machines consistent after a few years of drift
466
* Making it easier to keep them consistent by leveraging a read only root filesystem
467
* Guaranteeing rollbackability by using transactional updates
468 102 okurz
469 1 alarrosa
This was done by rbrown also to fulfill the prerequisite to getting them viable for multi-machine testing
470 102 okurz
471
These systems currently patch themselves and reboot automatically in the default maintenance window of 0330-0500 CET/CEST.
472 112 okurz
473 102 okurz
On problems this could be changed in the following way:
474
475 109 okurz
* Edit the maintenance window in /etc/rebootmgr.conf
476 105 nicksinger
* Disable the automatic reboot by "systemctl disable rebootmgr.service"
477
* Disable the automatic patching by "systemctl disable transactional-update.timer"
478
479 192 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
480
481 105 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.
482
483
For manual investigation https://github.com/kubic-project/microos-toolbox can be helpful
484
485
#### Rollback of updates
486 1 alarrosa
487 140 livdywan
Updates on workers can be rolled back using `transactional-update` affecting the transactional workers (others are likely not updated that often):
488
489 105 nicksinger
```
490 263 okurz
for i in $hosts; do echo $i && ssh root@$i "transactional-update rollback last && reboot"; done
491 105 nicksinger
```
492
493
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
494 108 SLindoMansilla
495
#### Debugging qemu SUTs in openqa.opensuse.org
496
497
SUT: System Under Test
498 1 alarrosa
499 108 SLindoMansilla
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).
500
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.
501
502
```
503 263 okurz
ssh -p 2214 -L LOCAL_PORT:WORKER_HOSTNAME:QEMU_VNC_PORT USERNAME@gate.opensuse.org
504 108 SLindoMansilla
```
505
506
For example, if user **bernhard**, wants to connect to openqaworker7:11, and wants to use local port **43043**
507
Being the IP of openqaworker7 **192.168.112.12**
508
And the VNC channel port of openqa-worker@11 **6001** (5990 + 11)
509
510
##### 1. Create SSH tunnel with port forwarding
511
* on laptop shell 1: ssh -p 2213 -L 43043:192.168.112.12:6001 bernhard@gate.opensuse.org
512 1 alarrosa
* Keep shell open to keep the tunnel open and the port forwarding
513 108 SLindoMansilla
514 1 alarrosa
##### 2. Open vncviewer
515
* on laptop shell 2: vncviewer -Shared localhost:43043
516
* `-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.
517
518 109 okurz
### AArch64 specific configurations on o3
519 1 alarrosa
520 109 okurz
On o3, the aarch64 workers need additional configuration.
521
522 127 dheidler
#### Setup HugePages
523
524
You need to setup HugePages support to improve performances with qemu VM and to match current aarch64 `MACHINE` configuration.
525
For the D05 machine, the configuration is: `40` pages with a size of `1G`.
526
If there are some permissions issues on `/dev/hugepages/`, check https://progress.opensuse.org/issues/53234
527
528 126 dheidler
### o3 s390 workers
529
530 223 dheidler
`workers.ini`
531
```
532
[global]
533
HOST=http://openqa1-opensuse
534
WORKER_HOSTNAME = 192.168.112.6
535
CACHEDIRECTORY=/var/lib/openqa/cache
536
CACHESERVICEURL=http://10.88.0.1:9530/
537
[101]
538
WORKER_CLASS=s390x-zVM-vswitch-l2,s390x-rebel-1-linux144
539
BACKEND=s390x
540
ZVM_HOST=192.168.112.9
541
ZVM_GUEST=linux144
542
ZVM_PASSWORD=lin390
543
S390_HOST=144
544
[102]
545
WORKER_CLASS=s390x-zVM-vswitch-l2,s390x-rebel-2-linux145
546
BACKEND=s390x
547
ZVM_HOST=192.168.112.9
548
ZVM_GUEST=linux145
549
ZVM_PASSWORD=lin390
550
S390_HOST=145
551
[103]
552
WORKER_CLASS=s390x-zVM-vswitch-l2,s390x-rebel-3-linux146
553
BACKEND=s390x
554
ZVM_HOST=192.168.112.9
555
ZVM_GUEST=linux146
556
ZVM_PASSWORD=lin390
557
S390_HOST=146
558
[104]
559
WORKER_CLASS=s390x-zVM-vswitch-l2,s390x-rebel-4-linux147
560
BACKEND=s390x
561
ZVM_HOST=192.168.112.9
562
ZVM_GUEST=linux147
563
ZVM_PASSWORD=lin390
564
S390_HOST=147
565
[105]
566
WORKER_CLASS=64bit-ipmi,64bit-ipmi-large-mem,64bit-ipmi-amd,blackbauhinia
567
IPMI_HOSTNAME=blackbauhinia-ipmi.openqanet.opensuse.org
568
IPMI_USER=ADMIN
569
IPMI_PASSWORD=ADMIN
570
SUT_IP=blackbauhinia.openqanet.opensuse.org
571
SUT_NETDEVICE=em1
572
IPMI_SOL_PERSISTENT_CONSOLE=1
573
IPMI_BACKEND_MC_RESET=1
574
[http://openqa1-opensuse]
575
TESTPOOLSERVER=rsync://openqa1-opensuse/tests
576
```
577
578 227 okurz
Allow containers to access cache service (`systemctl edit openqa-worker-cacheservice.service`):
579 221 dheidler
```
580
# /etc/systemd/system/openqa-worker-cacheservice.service.d/override.conf
581
[Service]
582
Environment="MOJO_LISTEN=http://0.0.0.0:9530"
583
```
584
585 126 dheidler
The s390 workers for openQA are running within podman containers on openqaworker1.
586
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.
587
588
The containers are started like this (for i=101…104):
589
590
```
591
i=101
592 226 dheidler
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=$i -v /opt/s390x_rebel_replacement:/etc/openqa -v /var/lib/openqa/share:/var/lib/openqa/share -v /var/lib/openqa/cache:/var/lib/openqa/cache registry.opensuse.org/devel/openqa/containers15.4/openqa_worker_os_autoinst_distri_opensuse:latest
593 216 dheidler
(cd /etc/systemd/system/; podman generate systemd -f -n --new openqaworker1_container_$i --restart-policy always)
594 109 okurz
systemctl daemon-reload
595 1 alarrosa
systemctl enable container-openqaworker1_container_$i
596 209 mkittler
```
597
598
To restart and permanently enable all workers at once:
599
```
600 217 dheidler
for i in {101..104} ; do systemctl stop container-openqaworker1_container_$i ; done
601 209 mkittler
podman rm -f openqaworker1_container_{101..104}
602 226 dheidler
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=$i -v /opt/s390x_rebel_replacement:/etc/openqa -v /var/lib/openqa/share:/var/lib/openqa/share -v /var/lib/openqa/cache:/var/lib/openqa/cache registry.opensuse.org/devel/openqa/containers15.4/openqa_worker_os_autoinst_distri_opensuse:latest ; done
603 216 dheidler
for i in {101..104} ; do (cd /etc/systemd/system/; podman generate systemd -f -n --new openqaworker1_container_$i --restart-policy always) ; done
604 209 mkittler
systemctl daemon-reload
605 220 dheidler
podman rm -f openqaworker1_container_{101..104}
606 219 dheidler
for i in {101..104} ; do systemctl reenable container-openqaworker1_container_$i && systemctl restart container-openqaworker1_container_$i ; done
607 109 okurz
```
608
609 210 mkittler
Initial ticket when the setup was created: https://progress.opensuse.org/issues/97751
610
611 133 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).
612
613 121 okurz
### Monitoring
614
615 233 okurz
openqa.opensuse.org is monitored by SUSE over https://zabbix.suse.de/. There is a user group "Owners/O3" to which SUSE employees can be added.
616
617
There is also an internal munin instance on o3. Anyone wanting to look at the HTML pages, do this:
618 121 okurz
```
619
rsync -a o3:/srv/www/htdocs/munin ~/o3-munin/ 
620
```
621
(where "o3" is configured in your ssh config of course)
622
623 241 tinita
It's also possible to view the munin page via an ssh tunnel:
624
```
625 252 tinita
ssh  -L 8080:127.0.0.1:80 o3
626 241 tinita
```
627
and then go to http://127.0.0.1:8080/munin/
628
629 247 tinita
Configuration of alerts is done in `/etc/munin/munin.conf`
630 1 alarrosa
631 247 tinita
## Hotfixing
632 183 okurz
633
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>:
634
635
```
636 263 okurz
for i in $hosts; 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
637 183 okurz
```
638
639
Hotpatching on all OSD workers with the same <pr_id> as above with something like
640
641
```
642
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/${pr_id}.patch | patch -p1 --directory=/usr/lib/os-autoinst'
643
```
644
645 89 ggardet_arm
## Mitigation of boot failure or disk issues
646
647
### Worker stuck in recovery
648
649
Check disk health and consider manual fixup of mount points, e.g.:
650
651
```
652
test -e /dev/md/openqa || lsblk -n | grep -v nvme | grep "/$" && 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
653
```
654
655 106 okurz
## PPC specific configurations
656
657 214 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).
658 89 ggardet_arm
659 84 okurz
## Moving worker from osd to o3
660
661
* 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
662
* Ensure network is configured for DHCP
663 242 okurz
* Instruct SUSE-IT to change VLAN for machine from oqa.suse.de VLAN to 662 (example: https://sd.suse.com/servicedesk/customer/portal/1/SD-124055, ~~https://infra.nue.suse.com/SelfService/Display.html?id=16458 (not available anymore)~~)
664 84 okurz
* Remove from osd:
665
666
```
667 242 okurz
salt-key -y -d worker7.oqa.suse.de
668 84 okurz
```
669 1 alarrosa
670 245 okurz
* On the worker * Change root password to o3 one
671
* Allow ssh password authentication: `sed -i 's/^PasswordAuthentication/#&/' /etc/ssh/sshd_config && systemctl restart sshd`
672
* Ensure ssh based root login works with `zypper -n in openssh-server-config-rootlogin` or if that is not available change 'PermitRootLogin' to 'yes' in sshd_config
673
* Add personal ssh key to machine, e.g. openqaworker7:/root/.ssh/authorized_keys
674
675
676
677 84 okurz
* Add entry on o3 to `/etc/dnsmasq.d/openqa.conf` with MAC address, e.g.
678
679
```
680
dhcp-host=54:ab:3a:24:34:b8,openqaworker7
681
```
682
683
* Add entry to `/etc/hosts` which dnsmasq picks up to give out a DHCP lease, e.g.
684
685
```
686
192.168.112.12   openqaworker7.openqanet.opensuse.org openqaworker7
687
```
688
689 243 livdywan
* Reload dnsmasq with `systemctl restart dnsmasq`
690 1 alarrosa
691 243 livdywan
* Adapt NFS mount point on the worker
692
693 85 okurz
```
694 246 okurz
sed -i '/openqa\.suse\.de/d' /etc/fstab && 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
695 85 okurz
```
696 84 okurz
697
* Restart network on machine (over IMPI) using `systemctl restart network` and monitor in o3:`journalctl -f -u dnsmasq` until address is assigned, e.g.:
698
699
```
700
Feb 29 10:48:30 ariel dnsmasq[28105]: read /etc/hosts - 30 addresses
701
Feb 29 10:48:54 ariel dnsmasq-dhcp[28105]: DHCPREQUEST(eth1) 10.160.1.101 54:ab:3a:24:34:b8
702
Feb 29 10:48:54 ariel dnsmasq-dhcp[28105]: DHCPNAK(eth1) 10.160.1.101 54:ab:3a:24:34:b8 wrong network
703
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPDISCOVER(eth1) 54:ab:3a:24:34:b8
704
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPOFFER(eth1) 192.168.112.12 54:ab:3a:24:34:b8
705
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPREQUEST(eth1) 192.168.112.12 54:ab:3a:24:34:b8
706
Feb 29 10:49:10 ariel dnsmasq-dhcp[28105]: DHCPACK(eth1) 192.168.112.12 54:ab:3a:24:34:b8 openqaworker7
707 85 okurz
```
708
709
* Ensure all mountpoints up
710 84 okurz
711
```
712
mount -a
713 86 okurz
```
714 84 okurz
715
* Update /etc/openqa/client.conf with the same key as used on other workers for "openqa1-opensuse"
716
* Update /etc/openqa/workers.ini with similar config as used on other workers, e.g. based on openqaworker4, example:
717
718
```
719
# diff -Naur /etc/openqa/workers.ini{.osd,}
720
--- /etc/openqa/workers.ini.osd 2020-02-29 15:21:47.737998821 +0100
721
+++ /etc/openqa/workers.ini     2020-02-29 15:22:53.334464958 +0100
722
@@ -1,17 +1,10 @@
723
-# This file is generated by salt - don't touch
724
-# Hosted on https://gitlab.suse.de/openqa/salt-pillars-openqa
725 1 alarrosa
-# numofworkers: 10
726 84 okurz
-
727
 [global]
728
-HOST=openqa.suse.de
729
-CACHEDIRECTORY=/var/lib/openqa/cache
730
-LOG_LEVEL=debug
731
-WORKER_CLASS=qemu_x86_64,qemu_x86_64_staging,tap,openqaworker7
732 263 okurz
-WORKER_HOSTNAME=10.X.X.101
733 84 okurz
-
734
-[1]
735
-WORKER_CLASS=qemu_x86_64,qemu_x86_64_staging,tap,qemu_x86_64_ibft,openqaworker7
736
+HOST=http://openqa1-opensuse
737
+WORKER_HOSTNAME=192.168.112.12
738
+CACHEDIRECTORY = /var/lib/openqa/cache
739
+CACHELIMIT = 50
740
+WORKER_CLASS = openqaworker7,qemu_x86_64
741
742
-[openqa.suse.de]
743
-TESTPOOLSERVER = rsync://openqa.suse.de/tests
744
+[http://openqa1-opensuse]
745
+TESTPOOLSERVER = rsync://openqa1-opensuse/tests
746
```
747
748
* Remove OSD specifics
749
750
```
751
systemctl disable --now auto-update.timer salt-minion telegraf
752
for i in  NPI SUSE_CA telegraf-monitoring; do zypper rr $i; done
753
zypper -n dup --force-resolution --allow-vendor-change
754
```
755
756
* If the machine is not a transactional-server one has the following options: Keep as is and handle like power8 (also not transactional), enable transactional updates w/o root being r/o, change to root being r/o on-the-fly, reinstall as transactional. At least option 2 is suggested, enable transactional updates:
757
758
```
759
zypper -n in transactional-update
760
systemctl enable --now transactional-update.timer rebootmgr
761
```
762
763
* Enable apparmor
764
765
```
766
zypper -n in apparmor-utils
767
systemctl unmask apparmor
768
systemctl enable --now apparmor
769
```
770
771
* Switch firewall from SuSEfirewall2 to firewalld
772
773
```
774
zypper -n in firewalld && zypper -n rm SuSEfirewall2
775
systemctl enable --now firewalld
776
firewall-cmd --zone=trusted --add-interface=br1
777
firewall-cmd --set-default-zone trusted
778
firewall-cmd --zone=trusted --add-masquerade
779
```
780
781
* Copy over special openSUSE UEFI staging images, see #63382
782 248 okurz
* For multi-machine configured workers make sure to have updated IPv4 entries in /etc/wicked/scripts/gre_tunnel_preup.sh
783 84 okurz
* Check operation with a single openQA worker instance:
784
785
```
786
systemctl enable --now openqa-worker.target openqa-worker@1
787
```
788
789
* Test with an openQA job cloned from a production job, e.g. for openqaworker7
790
791
```
792
openqa-clone-job --within-instance https://openqa.opensuse.org/t${id} WORKER_CLASS=openqaworker7
793
```
794
795
* After the latest openQA job could successfully finish enable more worker instances
796
797
```
798
systemctl unmask openqa-worker@{2..14} && systemctl enable --now openqa-worker@{2..14}
799
```
800
801
* Monitor if nightly update works, e.g. look for journal entry:
802
803
```
804
Mar 01 00:08:26 openqaworker7 transactional-update[10933]: Calling zypper up
805
806
Mar 01 00:08:51 openqaworker7 transactional-update[10933]: transactional-update finished - informed rebootmgr
807
Mar 01 00:08:51 openqaworker7 systemd[1]: Started Update the system.
808
809
Mar 01 03:30:00 openqaworker7 rebootmgrd[40760]: rebootmgr: reboot triggered now!
810
811
Mar 01 03:36:32 openqaworker7 systemd[1]: Reached target openQA Worker.
812
```
813 93 okurz
814 95 okurz
## Distribution upgrades
815
816 1 alarrosa
**Note:** Performing the upgrade differs slightly depending on the host setup:
817 131 livdywan
* On hosts with a writeable `/` you need to enter a root shell i.e. `sudo bash`
818 138 okurz
* 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
819
* 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
820 196 okurz
* Upgrades might pull in too many new packages so better crosscheck with `zypper … dup … --no-recommends`
821 138 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`):
822 101 okurz
823 95 okurz
```
824 263 okurz
new_version=15.5 # Specify the target release
825 1 alarrosa
826 98 livdywan
# Change the release via the special $releasever
827 1 alarrosa
. /etc/os-release
828
sed -i -e "s/${VERSION_ID}/\$releasever/g" /etc/zypp/repos.d/*
829
zypper --releasever=$new_version ref
830
test -f /etc/openqa/openqa.ini && sudo -u geekotest /opt/openqa-scripts/dump-psql
831 195 mkittler
systemctl stop openqa-continuous-update.timer  # it would interfere, e.g. revert the previous zypper ref call
832 1 alarrosa
zypper -n --releasever=$new_version dup --auto-agree-with-licenses --replacefiles --download-in-advance
833
834
# Check config files for relevant changes
835 95 okurz
rpmconfigcheck
836
for i in $(cat /var/adm/rpmconfigcheck) ; do vimdiff ${i%.rpm*} $i ; done
837
rm $(cat /var/adm/rpmconfigcheck)
838
839 1 alarrosa
reboot
840
systemctl --failed
841 213 okurz
```
842
843
* 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
844
* Crosscheck for any obvious alerts, pipelines failing, user reports, etc.
845
* 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
846
* Monitor for successful openQA jobs on the host
847
848 187 okurz
849 109 okurz
## openQA infrastructure needs (o3 + osd)
850
851 115 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
852 93 okurz
853
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.
854
855
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 
856
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.
857 107 okurz
858 125 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.
859
860 117 okurz
## Setup guide for new machines
861 250 mkittler
* Ensure the host has a proper DNS entry
862
    * 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).
863
    * Hosts located at Frankencampus need a DNS entry via the OPS-Service repo, e.g. https://gitlab.suse.de/OPS-Service/salt/-/merge_requests/3687.
864 1 alarrosa
* Change IPMI/BMC passwords to use our common passwords instead of default IPMI
865
* OSD: Add to salt using https://gitlab.suse.de/openqa/salt-states-openqa
866 250 mkittler
    * Make sure to set /etc/salt/minion_id to the FQDN (see #90875#note-2 for reference)
867
    * Checkout the next section for details
868
* o3: Setup the worker manually, see "Manual worker setup" section below
869 1 alarrosa
870 265 okurz
### Network (legacy) boot via PXE and OS/worker setup
871 250 mkittler
One can make use of our existing PXE infrastructure (which only supports legacy boot) following these steps:
872
873
1. Ensure the boot mode allows legacy boot, e.g. select it in the machine's setup menu manually.
874
2. Connect via IPMI and select "Leap -> HTTP -> Console" in our PXE menu, append ` console=ttyS0,115200 autoyast=http://s.qa.suse.de/oqa-ay-lp rootpassword=…` to the command line and wait until the installation has finished.
875 255 mkittler
    * Use https://w3.nue.suse.com/~okurz/ay-openqa-worker-leap.xml if the URL shortener is not available.
876
    * Alternatively, there's also https://raw.githubusercontent.com/os-autoinst/openQA/master/contrib/ay-openqa-worker.xml.
877 250 mkittler
    * If nothing shows up in the serial console, try a different console parameter, e.g. `console=ttyS1,115200`.
878
3. Configure repos, e.g. via the line of the scriptlet in http://s.qa.suse.de/oqa-ay-lp.
879
    * The scriptlet cannot be executed in the context of AutoYaST so this is a manual step at this point.
880
4. Enable SSH access via `systemctl enable --now sshd` and continue via SSH.
881 254 mkittler
5. Install some basic software, e.g. `zypper in htop vim systemd-coredump`.
882 253 mkittler
6. For OSD workers, setup `salt-minion` following the [documentation in our Salt states repository](https://github.com/os-autoinst/salt-states-openqa#setup-production-machine); otherwise setup the worker manually as explained in the next section.
883 1 alarrosa
7. Check whether the config looks good on the workers and whether jobs look good on the web UI host.
884 265 okurz
8. As long as [boo#1212816](https://bugzilla.opensuse.org/show_bug.cgi?id=1212816) is open apply a workaround for salt-minion:
885
886
```
887
arch=$(uname -m)
888
sudo zypper -n in --oldpackage --allow-downgrade http://download.opensuse.org/update/leap/15.4/sle/$arch/salt-3004-150400.8.25.1.$arch.rpm http://download.opensuse.org/update/leap/15.4/sle/$arch/salt-minion-3004-150400.8.25.1.$arch.rpm http://download.opensuse.org/update/leap/15.4/sle/$arch/python3-salt-3004-150400.8.25.1.$arch.rpm && sudo zypper al --comment "poo#131249 - potential salt regression, unresponsive salt-minion" salt salt-minion salt-bash-completion python3-salt
889
```
890
891
892 250 mkittler
893
### Manual worker setup
894 258 okurz
You likely want to configure the [openQA development repository](https://open.qa/docs/#_development_version_repository).
895 250 mkittler
Then setup the worker like this:
896
897 249 mkittler
```
898
echo "requires:openQA-worker" > /etc/zypp/systemCheck.d/openqa.check
899 259 okurz
zypper -n in openQA-worker openQA-auto-update openQA-continuous-update os-autoinst-distri-opensuse-deps swtpm # openQA worker services plus dependencies for openSUSE distri or development repo if added previously
900 258 okurz
zypper -n in ffmpeg-4  # for using external video encoder as it is already configured on some machines like ow19, ow20 and power8
901 249 mkittler
zypper -n in nfs-client  # For /var/lib/openqa/share
902 259 okurz
zypper -n in bash-completion vim htop strace systemd-coredump iputils tcpdump bind-utils  # for general tinkering
903 249 mkittler
904
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
905
sed -i 's/\(solver.dupAllowVendorChange = \)false/\1true/' /etc/zypp/zypp.conf
906 1 alarrosa
907
# configure /etc/openqa/client.conf and /etc/openqa/workers.ini, then enable the desired number of worker slots, e.g.:
908
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
909
```
910
911
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.
912 258 okurz
913
#### Optional: Transactional-server
914
You may chose the transaction server role but a normal server will do as well:
915
916
```
917
sed -i 's@/ btrfs ro@/ btrfs rw@' /etc/fstab
918
mount -o rw,remount /
919
btrfs property set -ts / ro false
920
```
921 249 mkittler
922
### UEFI boot via iPXE
923 250 mkittler
The following steps are for the o3 environment but can likely also be adapted for setting up OSD workers. This section skips the setup of the OS as it doesn't differ when using UEFI/iPXE. Checkout the previous sections for the OS/worker setup.
924 202 mkittler
925
---
926
927
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.
928
929
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:
930
```
931
#!ipxe
932 204 mkittler
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=…
933 202 mkittler
initrd http://download.opensuse.org/distribution/leap/15.4/repo/oss/boot/x86_64/loader/initrd
934
boot
935
```
936
937
Then, setup the build of an iPXE UEFI image like explained on https://en.opensuse.org/SDB:IPXE_booting#Setup:
938
```
939
git clone https://github.com/ipxe/ipxe.git
940
cd ipxe
941
echo "#!ipxe
942
dhcp
943
chain http://martchus.no-ip.biz/ipxe/leap-15.4" > myscript.ipxe
944
```
945
946
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).
947
948
To conduct the build of the image, run:
949
```
950
cd src
951
make EMBED=../myscript.ipxe NO_WERROR=1 bin/ipxe.lkrn bin/ipxe.pxe bin-i386-efi/ipxe.efi bin-x86_64-efi/ipxe.efi
952
```
953
954
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.
955
956
Then you can copy the files to ariel and move them to a location somewhere under `/srv/tftpboot`:
957
```
958
# on build host
959
rsync bin-x86_64-efi/ipxe.efi openqa.opensuse.org:/home/martchus/ipxe.efi
960
# on ariel
961
sudo cp /home/martchus/ipxe.efi /srv/tftpboot/ipxe-own-build/ipxe.efi
962
```
963
964
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:
965
```
966
enable-tftp
967
tftp-root=/srv/tftpboot
968
pxe-prompt="Press F8 for menu. foobar", 10
969
dhcp-match=set:efi-x86_64,option:client-arch,7
970
dhcp-match=set:efi-x86_64,option:client-arch,9
971
dhcp-match=set:efi-x86,option:client-arch,6
972
dhcp-match=set:bios,option:client-arch,0
973
dhcp-boot=tag:efi-x86_64,ipxe-own-build/ipxe.efi
974
```
975
976
Then run `systemctl restart dnsmasq.service` to apply and `journalctl -fu dnsmasq.service` to see what's going on.
977 215 okurz
978
### Installation of machines being able to run kexec
979
980
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.
981 232 okurz
982 231 okurz
### Linux Endpoint Protection Agent
983 215 okurz
Ensure any non-test OS installations have the Linux Endpoint Protection Agent deployed, see https://progress.opensuse.org/issues/123094 and https://confluence.suse.com/display/CS/Sensor+-+Linux+Endpoint+Protection+Agent for details
984 120 okurz
985
## Take machines out of salt-controlled production
986
987 118 okurz
E.g. for investigation or development or manual maintenance work
988
989
```
990 179 nicksinger
ssh osd "sudo salt-key -y -d $hostname"
991 118 okurz
ssh $hostname "sudo systemctl disable --now telegraf $(systemctl list-units | grep openqa-worker-auto-restart | cut -d "." -f 1 | xargs)"
992
```
993 174 mkittler
994
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.
995 229 nicksinger
996
## How to use samba shares to mount ISOs as virtual CD drives with SuperMicro server/mainboards
997
998
SuperMicro based servers have the capabilities to mount smb shares containing ISOs as virtual CD drives to e.g. boot from them.
999
Install the samba package on any machine you control. This also works from your personal workstation if the server can access it (e.g. over VPN) and create the following `/etc/samba/smb.conf`:
1000
1001
~~~ text
1002
[global]
1003
   workgroup = MYGROUP
1004
   server string = Samba Server
1005
   log level = 3
1006
   client min protocol = core
1007
   server min protocol = core
1008
   guest ok = yes
1009 240 okurz
1010
## "Staging" test instances
1011
1012
SUSE internally we have two virtual machines that can be used for testing, developing, showcasing, reachable under convenient URLs:
1013
* https://openqa-staging-1.qe.nue2.suse.org
1014
* https://openqa-staging-2.qe.nue2.suse.org
1015
1016
You can use those machines and apply changes as desired over ssh.
1017 229 nicksinger
1018
#============================ Share Definitions ==============================
1019
[recovery]
1020
	comment = recovery
1021
	path = /home/you/recovery
1022
	public = yes
1023
~~~
1024
1025
Now start the samba service. Despite the share being accessible by everyone (be carful about this!), the SuperMicro machines still need a User on the Samba server as they don't support anonymous login. To create a user without requiring a local unix user, you can use the following command:
1026
1027
```samba-tool domain provision --use-rfc2307 --interactive```
1028
1029
afterwards create a user in the samba database with:
1030
1031
```smbpasswd -a smbtest```
1032
1033
Now it should be possible to access the share. Place an ISO file into your folder configured above and use the following settings in the webui of the SuperMicro server:
1034
1035
"Share Host": IP of your machine running samba
1036
"Path to Image": Path to your ISO inside the share, e.g. "\recovery\some_boot_medium.iso" (mind the backslashes!)
1037
"Users": The username from your just created user
1038
"Password": It's password - don't keep this empty as it will not work otherwise
1039
1040
After clicking on "mount" you should now see a connection to your samba server. The machine will try to mount the ISO and if everything goes well, will report "There is an iso file mounted." in the "Health Status" of the Devices.
1041 173 mkittler
1042 118 okurz
## Bring back machines into salt-controlled production
1043
1044 124 dheidler
```
1045 118 okurz
ssh osd "sudo salt-key -a $hostname && sudo salt --state-output=changes $hostname state.apply"
1046
```
1047
1048 117 okurz
Depending on your actions further manual cleanup might be necessary, e.g. `ssh $hostname "sudo systemctl unmask telegraf salt-minion"`
1049 230 nicksinger
1050
## Access the BMC of machines in the new security zone
1051
1052
One can use ssh portforwarding to access the services of a BMC (e.g. web interface) for a machine in the new security zone. The host "qe-jumpy" can be used for that like this:
1053
1054
~~~
1055
ssh -4 jumpy@qe-jumpy.suse.de -L 8443:openqaworker4-ipmi.qe-ipmi-ur:443 -L 8080:openqaworker4-ipmi.qe-ipmi-ur:80
1056
~~~
1057
1058
while the ssh-session is running you can then use your local browser to access the remote host by e.g. "http://localhost:8080" or "https://localhost:8443".
1059
1060
## Using the build-in java tools of BMCs to access machines in the security zone
1061
1062
*1.* Follow [Access the BMC of machines in the new security zone](#Access-the-BMC-of-machines-in-the-new-security-zone) to download the build-in java webstart file of the machine you want to control
1063
*2.* Use nmap on qe-jumpy to scan for all ports of a machines BMC. Example:
1064
1065
~~~
1066
jumpy@qe-jumpy:~> nmap openqaworker4-ipmi.qe-ipmi-ur -p-
1067
Starting Nmap 7.70 ( https://nmap.org ) at 2023-01-17 12:23 UTC
1068
Nmap scan report for openqaworker4-ipmi.qe-ipmi-ur (192.168.133.4)
1069
Host is up (0.0056s latency).
1070
Not shown: 65525 closed ports
1071
PORT     STATE SERVICE
1072
22/tcp   open  ssh
1073
80/tcp   open  http
1074
199/tcp  open  smux
1075
427/tcp  open  svrloc
1076
443/tcp  open  https
1077
623/tcp  open  oob-ws-http
1078
5120/tcp open  barracuda-bbs
1079
5122/tcp open  unknown
1080
5123/tcp open  unknown
1081
7578/tcp open  unknown
1082
~~~
1083
1084
*3.* Forward all ports relevant for the java applet to your local machine:
1085
1086
~~~
1087
sudo ssh -i /home/nicksinger/.ssh/id_rsa.SUSE -4 jumpy@qe-jumpy.suse.de -L 443:openqaworker4-ipmi.qe-ipmi-ur:443 -L 623:openqaworker4-ipmi.qe-ipmi-ur:623 -L 5120:openqaworker4-ipmi.qe-ipmi-ur:5120 -L 5122:openqaworker4-ipmi.qe-ipmi-ur:5122 -L 5123:openqaworker4-ipmi.qe-ipmi-ur:5123 -L 7578:openqaworker4-ipmi.qe-ipmi-ur:7578
1088
~~~
1089
1090
**Note 1:** You have to use the exact same ports as shown by the port scan because you cannot instruct the applet to use different ports
1091
**Note 2:** You have to execute your ssh client with root privileges for it to be able to bind to ports below 1024. These forwardings need to be present for the applet being able to download additional files from the BMC
1092
**Note 3:** Make sure to point to your right keyfile by using the -i parameter as ssh will scan different directories if run as root
1093
1094
*4.* Execute the previously downloaded applet. I use the following command to make it work with wayland:
1095
~~~
1096
LANG=C _JAVA_AWT_WM_NONREPARENTING=1 javaws -nosecurity -jnlp jviewer\ \(1\).jnlp
1097
~~~
1098
*5.* You should now be able to control the machine/BMC with all its features (e.g. mounting ISO images as virtual CD)
1099 175 okurz
1100 172 mkittler
## Use a production host for testing backend changes locally, e.g. svirt, powerVM, IPMI bare-metal, s390x, etc.
1101 177 mkittler
1102 172 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).
1103 1 alarrosa
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.
1104 176 mkittler
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.
1105 172 mkittler
3. Start the locally configured worker slot and clone/run some jobs.
1106
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).
1107 178 mkittler
1108
### Alternatives
1109
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.
1110 122 okurz
1111 257 mkittler
## Dealing with PowerEdge SAP servers from Dell
1112 256 mkittler
### Restoring access to the iDRAC web interface
1113
If iDRAC returns a 400 error it might be due to a wrong DNS setting. This is especially likely if you have just changed the DNS entry. Try to access iDRAC via its IP which should still work. Then goto iDRAC settings -> Network -> General settings and update the DNS iDRAC name to match the *not* fully qualified domain (e.g. `qesapworker-prg4-mgmt` for https://qesapworker-prg4-mgmt.qa.suse.cz).
1114
1115
### Acessing the management interface via SSH
1116
It is possible to access the management interface via SSH as well (using the same user name and password as for the web interface). Checkout further Wiki sections for useful commands or the [manual](https://dl.dell.com/content/manual65464730-integrated-dell-remote-access-controller-9-racadm-cli-guide.pdf?language=en-us).
1117
1118
### Recovering BIOS
1119 1 alarrosa
If the BIOS appears completely broken (e.g. after a firmware update) you may try to invoke `racadm systemerase bios` after accessing the management interface via SSH. This will take a while and afterwards you'll have to redo settings (e.g. the bootmode).
1120 257 mkittler
1121
### Cancel/delete stuck iDRAC jobs
1122
Invoke `racadm jobqueue delete -i JID_CLEARALL_FORCE` after accessing the management interface via SSH.
1123
1124
### Check status of BOSS-S2 NVMe disks
1125
Use the "MVCLI BOSS-S2" utility from Dell which you can download from their servers (see https://www.dell.com/support/manuals/de-de/poweredge-r6525/boss-s2_ug/run-boss-s2-cli-commands-on-poweredge-servers-running-the-linux-operating-system?guid=guid-c0f3bd0d-4725-4fed-8bc2-4aa872f3627f&lang=en-us).
1126
1127
### Firmware updates
1128
The easiest way is to download the *Windows* installer (a file that ends with `.EXE`) and upload and install that via the iDRAC web interface. This also works for updates of iDRAC but also for BIOS updates and firmware of various components. Uploading the GNU/Linux version (a file that ends with `.BIN`) is *not* possible this way. One can track the progress of those updates via the iDRAC job queue. It is possible to schedule two updates that require a reboot at the same time (e.g. BIOS update and SAS-RAID firmware) and do them this way in one go.
1129 256 mkittler
1130 122 okurz
## Backup
1131 134 okurz
1132 122 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)
1133 139 okurz
1134
### openQA database backups
1135
1136
Database backups of o3+osd are available on backup.qa.suse.de, acessible over ssh, same credentials as for the OSD infrastructure
1137 144 livdywan
1138
### Fallback deployment on AWS
1139
1140 149 tinita
To get an instance running from a backup in case of a disaster, one can be created on AWS with this configuration:
1141
1142
#### Launch instance
1143 155 tinita
1144 149 tinita
##### Web Interface, from scratch (only if necessary, otherwise just use the template below)
1145 144 livdywan
1146
- Ensure your region is **Frankfurt, Germany**
1147 146 mkittler
- Pick a **t3.large** with `openSUSE Leap` on AWS Marketplace
1148
- Add two disks
1149
    - 10 GiB for the root filesystem should be sufficient (can be easily extended later if needed)
1150 144 livdywan
    - 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
1151
- The security group needs to include ssh and http
1152 149 tinita
- Add `openqa_created_by`, `openqa_ttl` and `team:qa-tools` tags
1153
1154
##### Launch from a template
1155 151 tinita
1156
Note: When you modify the template (creating a new version), be sure to set the new version as the default.
1157 155 tinita
1158 154 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
1159 149 tinita
- Select "Actions - Launch instance from template"
1160
- Choose your key pair
1161 1 alarrosa
- Click "Launch instance"
1162
1163 151 tinita
###### Command line
1164 156 tinita
1165
For configuring aws cli, see [below](https://progress.opensuse.org/projects/openqav3/wiki/Wiki#Configure-aws-cli)
1166
1167 149 tinita
[aws run-instances docs](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-launch-templates.html)
1168
1169 150 tinita
    aws ec2 run-instances --launch-template LaunchTemplateId=lt-002dfbcbd2f818e4c --key-name <your-keyname>
1170
    # or
1171 149 tinita
    aws ec2 run-instances --launch-template LaunchTemplateName=openQA-webUI-openSUSE-Leap --key-name <your-keyname>
1172
1173
For this you have to create a key pair first, if you haven't done so.
1174 144 livdywan
Save the result and look for the `InstanceId`.
1175
1176
#### Transfer keys
1177
1178
Since an instance is always created with a single key, public keys of all users need to be deployed by whoever owns that key.
1179
1180
**Note**: `osd2` refers to the instance created above. Replace with the instance IP or add an alias to your SSH config.
1181
1182
    ssh openqa.suse.de "sudo su -c 'cat /home/*/.ssh/authorized_keys'" | ssh ec2-user@osd2 "cat - >> ~/.ssh/authorized_keys"
1183
1184
#### Bootstrapping
1185
1186
```
1187 169 osukup
ssh osd2
1188 145 mkittler
sudo su
1189
parted --script /dev/nvme1n1 mklabel gpt && parted --script /dev/nvme1n1 mkpart ext4 4096s 100%
1190 160 osukup
mkfs.ext4 /dev/nvme1n1p1
1191 145 mkittler
vim /etc/fstab # add mount to fstab
1192 158 okurz
mkdir /space && mount /dev/nvme1n1p1 /space
1193
mkdir -p /space/pgsql/data
1194
mkdir -p /var/lib/pgsql
1195 169 osukup
ln -s /space/pgsql/data /var/lib/pgsql/data
1196
zypper in postgresql-server # needed for user.group
1197
chown -R postgres.postgres /space/pgsql # without correct group postgresql.service fails
1198
mkdir -p /space/openqa
1199 171 osukup
mkdir -p /var/lib/openqa
1200 161 osukup
mount /space/openqa /var/lib/openqa -o bind # open also requires a lot of space 
1201 152 tinita
curl -s https://raw.githubusercontent.com/os-autoinst/openQA/master/script/openqa-bootstrap | bash -x
1202
1203 145 mkittler
ssh -A backup.qa.suse.de
1204 1 alarrosa
rsync --progress /home/rsnapshot/alpha.0/openqa.suse.de/var/lib/openqa/SQL-DUMPS/2022-02-08.dump ec2-user@osd2:/tmp
1205
1206 147 mkittler
ssh osd2
1207 1 alarrosa
sudo -u postgres createdb -O geekotest openqa-osd # create pristine db for OSD import (to avoid conflicts with existing data)
1208 153 tinita
sudo -u geekotest pg_restore -d openqa-osd /tmp/2022-02-08.dump # import data, will take a while (22m is a realistic time)
1209 1 alarrosa
vim /etc/openqa/openqa.ini # change auth from Fake to OpenID
1210 170 osukup
vim /etc/openqa/database.ini # change database to openqa-osd
1211 158 okurz
vim /etc/openqa/client.conf # change key and secret to correct one
1212 1 alarrosa
systemctl restart openqa-webui
1213 155 tinita
```
1214
1215
##### Configure aws cli
1216
1217
You can use the command
1218
1219
    aws configure
1220
1221
but it doesn't actually help you with the possible values, so you can just create the file yourself like this:
1222
1223
    % cat ~/.aws/config
1224
    [default]
1225
    region = eu-central-1
1226 157 tinita
    output = json
1227
    % cat ~/.aws/credentials
1228
    [default]
1229 155 tinita
    aws_access_key_id = ABCDE
1230 144 livdywan
    aws_secret_access_key = FGHIJ
1231 109 okurz
1232 107 okurz
## Best practices for infrastructure work
1233
1234
* Same as in OSD deployment we should look for failed grafana alerts if users report something suspicious
1235
* Collect all the information between "last good" and "first bad" and then also find the git diff in openqa/salt-states-openqa
1236
* 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
1237
* Keep salt states to describe what should *not* be there
1238
* Try out older btrfs snapshots in systems for crosschecking and boot with disabled salt. In the kernel cmdline append `systemd.mask=salt-minion.service`
1239 190 okurz
* Team should conduct a work backlog check on a daily base, e.g. look for urgent tickets related to infrastructure problems
1240 191 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
1241 148 livdywan
* 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)
1242 116 okurz
* Prefer `reload` over `restart` where available e.g. `systemctl reload postgres` - in general `systemctl cat postgres` will show available commands for any service
1243
* Test reboot stability of machines with commands like in https://progress.opensuse.org/issues/78010#note-31 e.g.
1244
1245
```
1246
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
1247 234 okurz
```
1248
1249
# Automatic submission of packages
1250 1 alarrosa
Every commit to the master branch of the git repositories of https://github.com/os-autoinst/os-autoinst and https://github.com/os-autoinst/openQA is considered a stable release and triggers package builds within https://build.opensuse.org/project/show/devel:openQA, in particular https://build.opensuse.org/package/show/devel:openQA/os-autoinst and https://build.opensuse.org/package/show/devel:openQA/openQA. http://jenkins.qa.suse.de/job/trigger-openQA_in_openQA-TW/ using https://github.com/os-autoinst/scripts/blob/master/trigger-openqa_in_openqa is monitoring the download repositories for new versions and triggers openQA-in-openQA tests as visible on https://openqa.opensuse.org/group_overview/24 . http://jenkins.qa.suse.de/job/monitor-openQA_in_openQA-TW/ monitors the test execution using https://github.com/os-autoinst/scripts/blob/master/monitor-openqa_job and on test success triggers http://jenkins.qa.suse.de/job/submit-openQA-TW-to-oS_Fctry/ periodically (with a build throttle as decided together with openSUSE reviewers) using https://github.com/os-autoinst/scripts/blob/master/os-autoinst-obs-auto-submit. This step prepares openQA related packages for automatic submission into openSUSE:Factory in https://build.opensuse.org/project/show/devel:openQA:tested, awaits build+check results and then creates automatic submissions to openSUSE:Factory for inclusion of packages into openSUSE Tumbleweed. This approach could also be extended for automatic submission to openSUSE Leap, SLE PackageHub or directly to SLE using maintenance updates based on a configurable schedule with additional check steps as applicable. Given that openQA are developed based on a rolling-release model with no maintenance branches any updates to base products supporting openQA would be new version updates along with dependency package updates as necessary.