Automatic merge from submit-queue (batch tested with PRs 49043, 49001, 49057, 49066, 48102) Always use gcr.io/google_containers for side-loaded Docker images **What this PR does / why we need it**: #45391 changed the behavior for what registry we use in the sideloaded docker images tarfiles shipped with releases. As a result of that change, if `KUBE_DOCKER_REGISTRY` is set to anything other than `gcr.io/google_containers`, clusters will fail to start on GCE (and other places where the side-loaded images are used). This PR reverts that change in behavior, which I believe was unintentional; we'll always use `gcr.io/google_containers` for the docker image tarfiles, but will tag the images with `$KUBE_DOCKER_REGISTRY` if different. Also, I'm fixing a small bug in variable names that I introduced in #47939. Note that with recent changes here and in the release repo, we don't even need to tag with `KUBE_DOCKER_REGISTRY` and `KUBE_DOCKER_IMAGE_TAG`, but that's a more extensive change, and this smaller fix is more suitable for cherry-picking to 1.7. **Release note**: ```release-note NONE ``` /release-note-none /sig release /assign @david-mcmahon |
||
---|---|---|
.github | ||
api | ||
build | ||
cluster | ||
cmd | ||
docs | ||
examples | ||
federation | ||
Godeps | ||
hack | ||
logo | ||
pkg | ||
plugin | ||
staging | ||
test | ||
third_party | ||
translations | ||
vendor | ||
.bazelrc | ||
.gazelcfg.json | ||
.generated_files | ||
.gitattributes | ||
.gitignore | ||
BUILD.bazel | ||
CHANGELOG.md | ||
code-of-conduct.md | ||
CONTRIBUTING.md | ||
labels.yaml | ||
LICENSE | ||
Makefile | ||
Makefile.generated_files | ||
OWNERS | ||
OWNERS_ALIASES | ||
README.md | ||
Vagrantfile | ||
WORKSPACE |
Kubernetes

Kubernetes is an open source system for managing containerized applications across multiple hosts, providing 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 you are a company that 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 Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
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.
$ 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
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.