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Install the Kubernetes Command Line Tool

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Install the Kubernetes Command Line Tool
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Install the Kubernetes Command Line Tool

Jamie Cawley
Jamie Cawley
January 22, 2021
Created by
Jamie Cawley
October 8, 2020
Beginner
15 min.
SAP Cloud Platform, Kyma runtime, SAP Cloud Platform, Tutorial, Beginner, Cloud
Download and install kubectl - the Kubernetes command line tool which allows access to the SAP Cloud Platform Kyma runtime via the command line.

You will learn

  • How to download kubectl - the Kubernetes command line tool
  • How to install kubectl and connect it to a Kyma runtime
  • How to explore a few basic kubectl commands
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The Kyma runtime is a Kubernetes cluster. To manage resources and configurations from the command line, the tool kubectl can be used. This tutorial provides the steps to configure the tool to access the Kyma runtime. In subsequent tutorials you will learn various commands provided by kubectl.

Step 1: Download and install kubectl

  1. Download the latest kubectl command line tool from the Kubernetes website. Use the following URL:

    https://kubernetes.io/docs/tasks/tools/install-kubectl

  2. On the Kubernetes website, follow the instructions listed for your operating system, for example: Install kubectl on macOS.

Done
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Step 2: Test the kubectl installation
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  1. Open a command prompt on your computer.

    On Windows, you can search for the cmd or command prompt applications in the Start menu.

    On macOS, use Spotlight to find the “terminal” application.

    On Linux/Unix, you know how this works - just open your favorite command shell.

  2. Test the kubectl command line tool to make sure it is installed correctly by running the following command in your CLI:

    kubectl version --client

This should return a list of version properties, for example:

'Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.0", GitCommit:"9e991415386e4cf155a24b1da15becaa390438d8", GitTreeState:"clean", BuildDate:"2020-03-26T06:16:15Z", GoVersion:"go1.14", Compiler:"gc", Platform:"darwin/amd64"}
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Step 3: Download the Kyma runtime kubeconfig

The kubectl tool relies on configuration file called the kubeconfig, to configure access to the cluster. This step details how this can be obtained for the Kyma runtime Console UI. Please note that the kubeconfig has an expiration of eight hours and will have to be re-download once it expires.

  1. Navigate to the Console UI of your Kyma runtime.

  2. Log onto the Kyma runtime.

  3. At the top-right of the Kyma runtime window, choose the user information dropdown.

    kubeconfig

  4. Choose the Get Kubeconfig option to download the file.

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Step 4: Set the KUBECONFIG environment variable
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  1. Open a command line prompt on your computer. In the command line screen, type in the following:

    export KUBECONFIG=<KUBECONFIG_FILE_PATH>

    Replace the <KUBECONFIG_FILE_PATH> section with the file path of the Kubeconfig you downloaded in the previous step.

  2. Test the configuration by running this command: 

    kubectl config get-contexts

    This should return a response similar to:

    CURRENT NAME CLUSTER AUTHINFO NAMESPACE
    * c-#######.kyma.shoot.live.k8s-hana.ondemand.com c--#######.kyma.shoot.live.k8s-hana.ondemand.com OIDCUser

  3. You are now set up to use the Kyma runtime on SAP Cloud Platform.

For more information on kubectl, visit the Kubernetes overview and kubectl-commands websites.

What is the kubeconfig file used for?
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