Kubernetes Error: "Server could not find the requested resource."

In Kubernetes, the error message "Server could not find the requested resource" indicates that the Kubernetes API cannot locate the requested resources. Before going further, we first use kubectl get namespaces to retrieve all the resources in the namespaces. From there, we can know which resource is not present.

Some possible reasons for this error are illustrated below; in this answer, we will discuss them individually.

Incorrect API endpoint

This error typically arises due to an incorrect API endpoint. To prevent this, we must ensure that we access the suitable API for our Kubernetes cluster. The API endpoint follows the following format.

https://<cluster-ip>/api

We set the namespace using the kubectl command or specify it in the YAML files.

Incorrect resource name

Incorrect resources' names due to typos or misspellings can also show this error. Moreover, we need to specify the namespaces for the resources we will access.

Non-existence of resource

The non-existence of resources in the Kubernetes cluster also shows this error. In Kubernetes, we can check the existence of a resource with the help of the following command:

kubectl get <resource>

Using this command, we need to check the resource name and ensure that the resource has been created.

Cluster synchronization issues

Cluster synchronization means that the desired state of the resource matches the actual state as defined in the Kubernetes cluster. If there are issues in cluster synchronization, it may lead to several problems, like incomplete resource creation, resource creation delay, and synchronization conflicts.

Due to cluster synchronization issues, control panels try to allocate the same resource simultaneously at the same time. Due to these inconsistencies, we can get this error. To troubleshoot it, we verify the cluster health, monitor the cluster status, and restart the affected components.

DNS problems

We ensure that our Kubernetes cluster's networking is working correctly. Sometimes, problems with DNS resolution or network connectivity can cause the API server to have trouble finding the resource we're requesting. To prevent this, we verify that our cluster's DNS configuration is correctly set up. DNS is crucial in resolving resource names to their corresponding IP addresses. If there are issues with DNS resolution, the API server may struggle to locate the requested resource. We can double-check our DNS settings and ensure that they are appropriately configured.

Role-based access control

In Kubernetes, we use role-based access control to control and manage the cluster resources. Through this, we can manage the access of particular resources to the group of an organization. Just make sure that you have access to those resources. Insufficient privileges to resources result in the error "Server could not find the requested resource."

Conclusion

In this Answer, we discussed several methods to resolve the error "Server could not find the requested resource." We hope from this Answer, you were able to find the solution to this error in your case.