This is the result of UPDATE_COMPATIBILITY_FIXTURE_DATA=true go test k8s.io/api after removing the ReadOnly field from the API. The test data for older releases must be updated because the current code no longer supports that field. The removal itself is okay because the struct was declared as alpha. Because EphemeralVolumeSource is embedded quite a lot, different types are affected. Here is one example: --- FAIL: TestCompatibility/extensions.v1beta1.DaemonSet/v1.20.0 (0.04s) compatibility.go:476: json differs compatibility.go:477: string{ ... // 12941 identical bytes 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7d, // | }| 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7d, // |. }| - 0x2c, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, // -|,. | - 0x22, 0x72, 0x65, 0x61, 0x64, 0x4f, 0x6e, 0x6c, 0x79, 0x22, 0x3a, 0x20, 0x74, 0x72, 0x75, 0x65, // -|"readOnly": true| 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7d, 0x0a, 0x20, // |. }. | 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7d, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, // | }. | ... // 31426 identical bytes } compatibility.go:482: yaml differs compatibility.go:483: string{ ... // 22893 identical bytes 0x34, 0x22, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x65, 0x70, 0x68, 0x65, 0x6d, // |4". ephem| 0x65, 0x72, 0x61, 0x6c, 0x3a, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, // |eral:. | - 0x72, 0x65, 0x61, 0x64, 0x4f, 0x6e, 0x6c, 0x79, 0x3a, 0x20, 0x74, 0x72, 0x75, 0x65, 0x0a, 0x20, // -|readOnly: true. | - 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, // -| | 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x43, 0x6c, 0x61, 0x69, 0x6d, 0x54, 0x65, 0x6d, 0x70, 0x6c, // |volumeClaimTempl| 0x61, 0x74, 0x65, 0x3a, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, // |ate:. | ... // 5965 identical bytes } compatibility.go:488: proto differs compatibility.go:490: ( """ ... // 459 identical lines } } - 2: 1 } } ... // 1083 identical lines """ ) compatibility.go:506: wrote expected compatibility data... verify, commit, and rerun tests |
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.github | ||
api | ||
build | ||
CHANGELOG | ||
cluster | ||
cmd | ||
docs | ||
hack | ||
LICENSES | ||
logo | ||
pkg | ||
plugin | ||
staging | ||
test | ||
third_party | ||
translations | ||
vendor | ||
.generated_files | ||
.gitattributes | ||
.gitignore | ||
CHANGELOG.md | ||
code-of-conduct.md | ||
CONTRIBUTING.md | ||
go.mod | ||
go.sum | ||
LICENSE | ||
Makefile | ||
Makefile.generated_files | ||
OWNERS | ||
OWNERS_ALIASES | ||
README.md | ||
SECURITY_CONTACTS | ||
SUPPORT.md |
Kubernetes (K8s)

Kubernetes, also known as K8s, is an open source system for managing containerized applications across multiple hosts. It provides basic mechanisms for deployment, maintenance, and scaling of applications.
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.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If your company wants to help shape the evolution of technologies that are container-packaged, dynamically scheduled, and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using K8s
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To use Kubernetes code as a library in other applications, see the list of published components.
Use of the k8s.io/kubernetes
module or k8s.io/kubernetes/...
packages as libraries is not supported.
To start developing K8s
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
mkdir -p $GOPATH/src/k8s.io
cd $GOPATH/src/k8s.io
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make
You have a working Docker environment.
git clone https://github.com/kubernetes/kubernetes
cd kubernetes
make quick-release
For the full story, head over to the developer's documentation.
Support
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.