mirror of https://github.com/k3s-io/k3s
97 lines
2.9 KiB
Markdown
97 lines
2.9 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/secrets/README.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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# Secrets example
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Following this example, you will create a [secret](../secrets.md) and a [pod](../pods.md) that consumes that secret in a [volume](../volumes.md). See [Secrets design document](../../design/secrets.md) for more information.
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## Step Zero: Prerequisites
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This example assumes you have a Kubernetes cluster installed and running, and that you have
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installed the `kubectl` command line tool somewhere in your path. Please see the [getting
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started](../../../docs/getting-started-guides/) for installation instructions for your platform.
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## Step One: Create the secret
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A secret contains a set of named byte arrays.
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Use the [`examples/secrets/secret.yaml`](secret.yaml) file to create a secret:
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```console
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$ kubectl create -f docs/user-guide/secrets/secret.yaml
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```
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You can use `kubectl` to see information about the secret:
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```console
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$ kubectl get secrets
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NAME TYPE DATA
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test-secret Opaque 2
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$ kubectl describe secret test-secret
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Name: test-secret
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Labels: <none>
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Annotations: <none>
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Type: Opaque
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Data
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====
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data-1: 9 bytes
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data-2: 11 bytes
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```
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## Step Two: Create a pod that consumes a secret
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Pods consume secrets in volumes. Now that you have created a secret, you can create a pod that
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consumes it.
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Use the [`examples/secrets/secret-pod.yaml`](secret-pod.yaml) file to create a Pod that consumes the secret.
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```console
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$ kubectl create -f docs/user-guide/secrets/secret-pod.yaml
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```
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This pod runs a binary that displays the content of one of the pieces of secret data in the secret
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volume:
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```console
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$ kubectl logs secret-test-pod
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2015-04-29T21:17:24.712206409Z content of file "/etc/secret-volume/data-1": value-1
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```
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[]()
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