mirror of https://github.com/k3s-io/k3s
94 lines
3.4 KiB
Markdown
94 lines
3.4 KiB
Markdown
<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
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<!-- BEGIN STRIP_FOR_RELEASE -->
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<h2>PLEASE NOTE: This document applies to the HEAD of the source tree</h2>
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If you are using a released version of Kubernetes, you should
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refer to the docs that go with that version.
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<strong>
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The latest release of this document can be found
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[here](http://releases.k8s.io/release-1.1/docs/user-guide/prereqs.md).
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Documentation for other releases can be found at
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[releases.k8s.io](http://releases.k8s.io).
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</strong>
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--
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<!-- END STRIP_FOR_RELEASE -->
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<!-- END MUNGE: UNVERSIONED_WARNING -->
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# Kubernetes User Guide: Managing Applications: Prerequisites
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To deploy and manage applications on Kubernetes, you’ll use the Kubernetes command-line tool, [kubectl](kubectl/kubectl.md). It lets you inspect your cluster resources, create, delete, and update components, and much more. You will use it to look at your new cluster and bring up example apps.
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## Installing kubectl
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If you downloaded a pre-compiled [release](https://github.com/kubernetes/kubernetes/releases), kubectl should be under `platforms/<os>/<arch>` from the tar bundle.
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If you built from source, kubectl should be either under `_output/local/bin/<os>/<arch>` or `_output/dockerized/bin/<os>/<arch>`.
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The kubectl binary doesn't have to be installed to be executable, but the rest of the walkthrough will assume that it's in your PATH.
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The simplest way to install is to copy or move kubectl into a dir already in PATH (e.g. `/usr/local/bin`). For example:
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```console
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# OS X
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$ sudo cp kubernetes/platforms/darwin/amd64/kubectl /usr/local/bin/kubectl
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# Linux
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$ sudo cp kubernetes/platforms/linux/amd64/kubectl /usr/local/bin/kubectl
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```
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You also need to ensure it's executable:
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```console
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$ sudo chmod +x /usr/local/bin/kubectl
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```
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If you prefer not to copy kubectl, you need to ensure the tool is in your path:
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```bash
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# OS X
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export PATH=<path/to/kubernetes-directory>/platforms/darwin/amd64:$PATH
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# Linux
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export PATH=<path/to/kubernetes-directory>/platforms/linux/amd64:$PATH
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```
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## Configuring kubectl
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In order for kubectl to find and access the Kubernetes cluster, it needs a [kubeconfig file](kubeconfig-file.md), which is created automatically when creating a cluster using kube-up.sh (see the [getting started guides](../../docs/getting-started-guides/) for more about creating clusters). If you need access to a cluster you didn’t create, see the [Sharing Cluster Access document](sharing-clusters.md).
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By default, kubectl configuration lives at `~/.kube/config`.
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#### Making sure you're ready
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Check that kubectl is properly configured by getting the cluster state:
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```console
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$ kubectl cluster-info
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```
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If you see a url response, you are ready to go.
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## What's next?
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[Learn how to launch and expose your application.](quick-start.md)
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<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
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[]()
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<!-- END MUNGE: GENERATED_ANALYTICS -->
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