Addressed comments by pwittrock.
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@ -15,7 +15,7 @@ toc:
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- title: Configuring a Pod to Use a Volume for Storage
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path: /docs/tasks/configure-pod-container/configure-volume-storage/
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- title: Distributing Credentials Securely
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path: /docs/tasks/administer-cluster/distribute-credentials-secure/
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path: /docs/tasks/configure-pod-container/distribute-credentials-secure/
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- title: Accessing Applications in a Cluster
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section:
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@ -36,6 +36,7 @@ toc:
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section:
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- title: Assigning Pods to Nodes
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path: /docs/tasks/administer-cluster/assign-pods-nodes/
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- title: Autoscaling the DNS Service in a Cluster
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path: /docs/tasks/administer-cluster/dns-horizontal-autoscaling/
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- title: Safely Draining a Node while Respecting Application SLOs
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@ -2,7 +2,8 @@
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---
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{% capture overview %}
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This page shows how to create a Secret and a Pod that has access to the Secret.
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This page shows how to securely inject sensitive data, such as passwords and
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encryption keys, into Pods.
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{% endcapture %}
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{% capture prerequisites %}
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@ -37,6 +38,11 @@ username and password:
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kubectl create -f http://k8s.io/docs/tasks/administer-cluster/secret.yaml
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**Note:** If you want to skip the Base64 encoding step, you can create a Secret
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by using the `kubectl create secret` command:
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kubectl create secret generic test-secret --from-literal=username="my-app",password="39528$vdg7Jb"
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1. View information about the Secret:
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kubectl get secret test-secret
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@ -65,7 +71,7 @@ username and password:
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password: 13 bytes
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username: 7 bytes
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### Creating a Pod that has access to the secret data
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### Creating a Pod that has access to the secret data through a Volume
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Here is a configuration file you can use to create a Pod:
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@ -77,7 +83,7 @@ Here is a configuration file you can use to create a Pod:
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1. Verify that your Pod is running:
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kubectl get pods
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kubectl get pod secret-test-pod
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Output:
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@ -89,7 +95,9 @@ Here is a configuration file you can use to create a Pod:
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kubectl exec -it secret-test-pod -- /bin/bash
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1. In your shell, go to the directory where the secret data is exposed:
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1. The secret data is exposed to the Container through a Volume mounted under
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`/etc/secret-volume`. In your shell, go to the directory where the secret data
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is exposed:
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root@secret-test-pod:/# cd /etc/secret-volume
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@ -110,12 +118,52 @@ Here is a configuration file you can use to create a Pod:
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my-app
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39528$vdg7Jb
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### Creating a Pod that has access to the secret data through environment variables
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Here is a configuration file you can use to create a Pod:
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{% include code.html language="yaml" file="secret-envars-pod.yaml" ghlink="/docs/tasks/administer-cluster/secret-envars-pod.yaml" %}
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1. Create the Pod:
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kubectl create -f http://k8s.io/docs/tasks/administer-cluster/secret-envars-pod.yaml
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1. Verify that your Pod is running:
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kubectl get pod secret-envars-test-pod
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Output:
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NAME READY STATUS RESTARTS AGE
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secret-envars-test-pod 1/1 Running 0 4m
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1. Get a shell into the Container that is running in your Pod:
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kubectl exec -it secret-envars-test-pod -- /bin/bash
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1. In your shell, display the environment variables:
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root@secret-envars-test-pod:/# printenv
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The output includes your username and password:
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...
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SECRET_USERNAME=my-app
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...
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SECRET_PASSWORD=39528$vdg7Jb
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{% endcapture %}
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{% capture whatsnext %}
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* Learn more about [secrets](/docs/user-guide/secrets/).
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* See [Secret](docs/api-reference/v1/definitions/#_v1_secret).
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* Learn more about [Secrets](/docs/user-guide/secrets/).
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* Learn about [Volumes](/docs/user-guide/volumes/).
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#### Reference
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* [Secret](docs/api-reference/v1/definitions/#_v1_secret)
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* [Volume](docs/api-reference/v1/definitions/#_v1_volume)
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* [Pod](docs/api-reference/v1/definitions/#_v1_pod)
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{% endcapture %}
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@ -0,0 +1,19 @@
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apiVersion: v1
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kind: Pod
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metadata:
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name: secret-envars-test-pod
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spec:
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containers:
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- name: envars-test-container
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image: nginx
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env:
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- name: SECRET_USERNAME
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valueFrom:
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secretKeyRef:
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name: test-secret
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key: username
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- name: SECRET_PASSWORD
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valueFrom:
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secretKeyRef:
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name: test-secret
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key: password
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@ -10,6 +10,7 @@ spec:
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# name must match the volume name below
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- name: secret-volume
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mountPath: /etc/secret-volume
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# The secret data is exposed to Containers in the Pod through a Volume.
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volumes:
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- name: secret-volume
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secret:
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@ -10,6 +10,7 @@ single thing, typically by giving a short sequence of steps.
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* [Defining Environment Variables for a Container](/docs/tasks/configure-pod-container/define-environment-variable-container/)
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* [Defining a Command and Arguments for a Container](/docs/tasks/configure-pod-container/define-command-argument-container/)
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* [Assigning CPU and RAM Resources to a Container](/docs/tasks/configure-pod-container/assign-cpu-ram-container/)
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* [Distributing Credentials Securely](/docs/tasks/configure-pod-container/distribute-credentials-secure/)
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#### Accessing Applications in a Cluster
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