website/content/en/docs/tasks/configure-pod-container/configure-projected-volume-storage.md

reviewers	title	content_type	weight
jpeeler pmorie	Configure a Pod to Use a Projected Volume for Storage	task	100

This page shows how to use a projected Volume to mount several existing volume sources into the same directory. Currently, secret, configMap, downwardAPI, and serviceAccountToken volumes can be projected.

{{< note >}} serviceAccountToken is not a volume type. {{< /note >}}

{{% heading "prerequisites" %}}

{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}

Configure a projected volume for a pod

In this exercise, you create username and password {{< glossary_tooltip text="Secrets" term_id="secret" >}} from local files. You then create a Pod that runs one container, using a projected Volume to mount the Secrets into the same shared directory.

Here is the configuration file for the Pod:

{{% code_sample file="pods/storage/projected.yaml" %}}

1. Create the Secrets:

   # Create files containing the username and password:
   echo -n "admin" > ./username.txt
   echo -n "1f2d1e2e67df" > ./password.txt
   
   # Package these files into secrets:
   kubectl create secret generic user --from-file=./username.txt
   kubectl create secret generic pass --from-file=./password.txt
   

2. Create the Pod:

   kubectl apply -f https://k8s.io/examples/pods/storage/projected.yaml
   

3. Verify that the Pod's container is running, and then watch for changes to the Pod:

   kubectl get --watch pod test-projected-volume
   

   The output looks like this:

   NAME                    READY     STATUS    RESTARTS   AGE
   test-projected-volume   1/1       Running   0          14s
   

4. In another terminal, get a shell to the running container:

   kubectl exec -it test-projected-volume -- /bin/sh
   

5. In your shell, verify that the projected-volume directory contains your projected sources:

   ls /projected-volume/
   

Clean up

Delete the Pod and the Secrets:

kubectl delete pod test-projected-volume
kubectl delete secret user pass

{{% heading "whatsnext" %}}

• Learn more about projected volumes.
• Read the all-in-one volume design document.