3c2e6a9f4d
Automatic merge from submit-queue (batch tested with PRs 46299, 46309, 46311, 46303, 46150) Fix in-cluster kubectl --namespace override **What this PR does / why we need it**: Before this change, if the config was empty, ConfirmUsable() would return an "invalid configuration" error instead of examining and honoring the value of the --namespace flag. This change looks at the overrides first, and returns the overridden value if it exists before attempting to check if the config is usable. This is most applicable to in-cluster clients, where they don't have a kubeconfig but they do have a token and can use KUBERNETES_SERVICE_HOST/_PORT. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # **Special notes for your reviewer**: **Release note**: ```release-note The --namespace flag is now honored for in-cluster clients that have an empty configuration. ``` @kubernetes/sig-api-machinery-pr-reviews @fabianofranz @liggitt @deads2k @smarterclayton @caesarxuchao @soltysh |
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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
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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
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$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
If you are less impatient, head over to the developer's documentation.
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