website/content/en/docs/tasks/configure-pod-container/extended-resource.md

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---
title: Assign Extended Resources to a Container
content_template: templates/task
weight: 40
---
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This page shows how to assign extended resources to a Container.
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Before you do this exercise, do the exercise in
[Advertise Extended Resources for a Node](/docs/tasks/administer-cluster/extended-resource-node/).
That will configure one of your Nodes to advertise a dongle resource.
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## Assign an extended resource to a Pod
To request an extended resource, include the `resources:requests` field in your
Container manifest. Extended resources are fully qualified with any domain outside of
`*.kubernetes.io/`. Valid extended resource names have the form `example.com/foo` where
`example.com` is replaced with your organization's domain and `foo` is a
descriptive resource name.
Here is the configuration file for a Pod that has one Container:
{{< code file="extended-resource-pod.yaml" >}}
In the configuration file, you can see that the Container requests 3 dongles.
Create a Pod:
```shell
kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/extended-resource-pod.yaml
```
Verify that the Pod is running:
```shell
kubectl get pod extended-resource-demo
```
Describe the Pod:
```shell
kubectl describe pod extended-resource-demo
```
The output shows dongle requests:
```yaml
Limits:
example.com/dongle: 3
Requests:
example.com/dongle: 3
```
## Attempt to create a second Pod
Here is the configuration file for a Pod that has one Container. The Container requests
two dongles.
{{< code file="extended-resource-pod-2.yaml" >}}
Kubernetes will not be able to satisfy the request for two dongles, because the first Pod
used three of the four available dongles.
Attempt to create a Pod:
```shell
kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/extended-resource-pod-2.yaml
```
Describe the Pod
```shell
kubectl describe pod extended-resource-demo-2
```
The output shows that the Pod cannot be scheduled, because there is no Node that has
2 dongles available:
```
Conditions:
Type Status
PodScheduled False
...
Events:
...
... Warning FailedScheduling pod (extended-resource-demo-2) failed to fit in any node
fit failure summary on nodes : Insufficient example.com/dongle (1)
```
View the Pod status:
```shell
kubectl get pod extended-resource-demo-2
```
The output shows that the Pod was created, but not scheduled to run on a Node.
It has a status of Pending:
```yaml
NAME READY STATUS RESTARTS AGE
extended-resource-demo-2 0/1 Pending 0 6m
```
## Clean up
Delete the Pod that you created for this exercise:
```shell
kubectl delete pod extended-resource-demo-2
```
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### For application developers
* [Assign Memory Resources to Containers and Pods](/docs/tasks/configure-pod-container/assign-memory-resource/)
* [Assign CPU Resources to Containers and Pods](/docs/tasks/configure-pod-container/assign-cpu-resource/)
### For cluster administrators
* [Advertise Extended Resources for a Node](/docs/tasks/administer-cluster/extended-resource-node/)
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