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vendor/k8s.io/client-go/examples/out-of-cluster-client-configuration/README.md
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vendor/k8s.io/client-go/examples/out-of-cluster-client-configuration/README.md
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# Authenticating outside the cluster
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This example shows you how to configure a client with client-go to authenticate
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to the Kubernetes API from an application running outside the Kubernetes
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cluster.
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You can use your kubeconfig file that contains the context information
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of your cluster to initialize a client. The kubeconfig file is also used
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by the `kubectl` command to authenticate to the clusters.
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## Running this example
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Make sure your `kubectl` is configured and pointed to a cluster. Run
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`kubectl get nodes` to confirm.
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Run this application with:
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cd out-of-cluster-client-configuration
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go build -o app .
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./app
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Running this application will use the kubeconfig file and then authenticate to the
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cluster, and print the number of nodes in the cluster every 10 seconds:
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$ ./app
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There are 3 pods in the cluster
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There are 3 pods in the cluster
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There are 3 pods in the cluster
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...
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Press <kbd>Ctrl</kbd>+<kbd>C</kbd> to quit this application.
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> **Note:** You can use the `-kubeconfig` option to use a different config file. By default
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this program picks up the default file used by kubectl (when `KUBECONFIG`
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environment variable is not set).
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