Automatic merge from submit-queue (batch tested with PRs 39223, 40260, 40082, 40389) make kubectl generic commands work with unstructured objects part of making apply, edit, label, annotate, and patch work with third party resources fixes #35149 fixes #34413 prereq of: https://github.com/kubernetes/kubernetes/issues/35496 https://github.com/kubernetes/kubernetes/pull/40096 related to: https://github.com/kubernetes/kubernetes/issues/39906 https://github.com/kubernetes/kubernetes/issues/40119 kubectl is currently decoding any resource it doesn't have compiled-in to a ThirdPartyResourceData struct, which means it computes patches using that struct, and would try to send a ThirdPartyResourceData object to the API server when running `apply` This PR removes the behavior that decodes unknown objects into ThirdPartyResourceData structs internally, and fixes up the following generic commands to work with unstructured objects - [x] apply - [x] decode into runtime.Unstructured objects - [x] successfully use `--record` with unregistered objects - [x] patch - [x] decode into runtime.Unstructured objects - [x] successfully use `--record` with unregistered objects - [x] describe - [x] decode into runtime.Unstructured objects - [x] implement generic describer - [x] fix other generic kubectl commands to work with unstructured objects - [x] label - [x] annotate follow-ups for pre-existing issues: - [ ] `explain` doesn't work with unregistered resources - [ ] remove special casing of federation group in clientset lookups, etc - [ ] `patch` - [ ] doesn't honor output formats when persisting to server (`kubectl patch -f svc.json --type merge -p '{}' -o json` doesn't output json) - [ ] --local throws exception (`kubectl patch -f svc.json --type merge -p '{}' --local`) - [ ] `apply` - [ ] fall back to generic JSON patch computation if no go struct is registered for the target GVK (e.g. https://github.com/kubernetes/kubernetes/pull/40096) - [ ] ensure subkey deletion works in CreateThreeWayJSONMergePatch - [ ] ensure type stomping works in CreateThreeWayJSONMergePatch - [ ] lots of tests for generic json patch computation - [ ] prevent generic apply patch computation among different versions - [ ] reconcile treatment of nulls with https://github.com/kubernetes/kubernetes/pull/35496 - [ ] `edit` - [ ] decode into runtime.Unstructured objects - [ ] fall back to generic JSON patch computation if no go struct is registered for the target GVK |
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Kubernetes

Introduction
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications. Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF)
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Are you ...
- Interested in learning more about using Kubernetes?
- See our documentation on kubernetes.io
- Try our interactive tutorial
- Take a free course on Scalable Microservices with Kubernetes.
- Interested in developing the core Kubernetes code base, developing tools using the Kubernetes API or helping in anyway possible ? Keep reading!
Code of Conduct
The Kubernetes community abides by the CNCF code of conduct. Here is an excerpt:
As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
Community
Do you want to help "shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented? ". If you are a company, you should consider joining the CNCF. For details about who's involved in CNCF and how Kubernetes plays a role, read the announcement. For general information about our community see the website community page.
Join us on social media (Twitter, Google+) and read our blog
Ask questions and help answer them on Slack or Stack Overflow
Attend our key events (kubecon, cloudnativecon, weekly community meeting)
Join a Special Interest Group (SIG)
Contribute
If you're interested in being a contributor and want to get involved in developing Kubernetes, get started with this reading:
- The community expectations
- The contributor guidelines
- The Kubernetes Developer Guide
You will then most certainly gain a lot from joining a SIG, attending the regular hangouts as well as the community meeting.
If you have an idea for a new feature, see the Kubernetes Features repository for a list of features that are coming in new releases as well as details on how to propose one.
Building Kubernetes for the impatient
If you want to build Kubernetes right away there are two options:
- You have a working Go environment.
$ go get -d k8s.io/kubernetes
$ cd $GOPATH/src/k8s.io/kubernetes
$ make
- You have a working Docker environment.
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
If you are less impatient, head over to the developer's documentation.
Support
While there are many different channels that you can use to get hold of us (Slack, Stack Overflow, Issues, Forums/Mailing lists), you can help make sure that we are efficient in getting you the help that you need.
If you need support, start with the troubleshooting guide and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another. We don't bite!