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Kubernetes Documentation Survey
Author: Aimee Ukasick and SIG Docs
In September, SIG Docs conducted its first survey about the Kubernetes documentation. We'd like to thank the CNCF's Kim McMahon for helping us create the survey and access the results.
Respondents would like more example code, more detailed content, and more diagrams in the Concepts, Tasks, and Reference sections.
74% of respondents would like the Tutorials section to contain advanced content.
69.70% said the Kubernetes documentation is the first place they look for information about Kubernetes.
Survey methodology and respondents
We conducted the survey in English. The survey was only available for 4 days due to time constraints. We announced the survey on Kubernetes mailing lists, in Kubernetes Slack channels, on Twitter, and in Kube Weekly. There were 23 questions, and respondents took an average of 4 minutes to complete the survey.
Quick facts about respondents:
- 48.48% are experienced Kubernetes users, 26.26% expert, and 25.25% beginner
- 57.58% use Kubernetes in both administrator and developer roles
- 64.65% have been using the Kubernetes documentation for more than 12 months
- 95.96% read the documentation in English
Question and response highlights
Why people access the Kubernetes documentation
The majority of respondents stated that they access the documentation for the Concepts.
This deviates only slightly from what we see in Google Analytics: of the top 10 most viewed pages this year, #1 is the kubectl cheatsheet in the Reference section, followed overwhelmingly by pages in the Concepts section.
Satisfaction with the documentation
We asked respondents to record their level of satisfaction with the detail in the Concepts, Tasks, Reference, and Tutorials sections:
- Concepts: 47.96% Moderately Satisfied
- Tasks: 50.54% Moderately Satisfied
- Reference: 40.86% Very Satisfied
- Tutorial: 47.25% Moderately Satisfied
How SIG Docs can improve each documentation section
We asked how we could improve each section, providing respondents with selectable answers as well as a text field. The clear majority would like more example code, more detailed content, more diagrams, and advanced tutorials:
- Personally, would like to see more analogies to help further understanding. - Would be great if corresponding sections of code were explained too - Expand on the concepts to bring them together - they're a bucket of separate eels moving in different directions right now - More diagrams, and more example code
Respondents used the "Other" text box to record areas causing frustration:
- Keep concepts up to date and accurate - Keep task topics up to date and accurate. Human testing. - Overhaul the examples. Many times the output of commands shown is not actual. - I've never understood how to navigate or interpret the reference section - Keep the tutorials up to date, or remove them
How SIG Docs can improve the documentation overall
We asked respondents how we can improve the Kubernetes documentation overall. Some took the opportunity to tell us we are doing a good job:
- For me, it is the best documented open source project. - Keep going! - I find the documentation to be excellent. - You [are] doing a great job. For real.
Other respondents provided feedback on the content:
- ...But since we're talking about docs, more is always better. More advanced configuration examples would be, to me, the way to go. Like a Use Case page for each configuration topic with beginner to advanced example scenarios. Something like that would be awesome.... - More in-depth examples and use cases would be great. I often feel that the Kubernetes documentation scratches the surface of a topic, which might be great for new users, but it leaves more experienced users without much "official" guidance on how to implement certain things. - More production like examples in the resource sections (notably secrets) or links to production like examples - It would be great to see a very clear "Quick Start" A->Z up and running like many other tech projects. There are a handful of almost-quick-starts, but no single guidance. The result is information overkill.
A few respondents provided technical suggestions:
- Make table columns sortable and filterable using a ReactJS or Angular component. - For most, I think creating documentation with Hugo - a system for static site generation - is not appropriate. There are better systems for documenting large software project. Specifically, I would like to see k8s switch to Sphinx for documentation. It has an excellent built-in search, it is easy to learn if you know markdown, it is widely adopted by other projects (e.g. every software project in readthedocs.io, linux kernel, docs.python.org etc).
Overall, respondents provided constructive criticism focusing on the need for advanced use cases as well as more in-depth examples, guides, and walkthroughs.
Where to see more
Survey results summary, charts, and raw data are available in
kubernetes/community sig-docs survey directory.