How To Secure Access To Cluster

Hi there,

We use Kubernetes Managed Kubernetes, and became recently concerned about the potential security vulnerability.

Access to the cluster is granted with the “kubeconfig” which contains Kubernetes API token. So the only thing it takes for anyone to get access to the entire cluster and application environment is to get content from that file.

Is there a recommended way of handling this problem? Is it possible to restrict access behind a firewall, or disable root type of access and use a solution like Teleport?

Please share your experience.

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Bobby Iliev
Site Moderator
Site Moderator badge
July 8, 2024

Hi there,

A quick update here in case that anyone comes across this in the future.

DigitalOcean has just announced that Control plane firewalls are now available in Early Availability.

The feature improves security and traffic for your cluster. Once enabled, only configured IP addresses, cluster worker nodes and workloads, and internal systems that manage the cluster (such as cluster upgrades) can access the control plane.

Existing open connections continue to work until they terminate. However, for WATCH requests, the API server enforces a maximum of 30 minutes for terminating the open connection.

For more information, see How to Add a Control Plane Firewall.

- Bobby

Bobby Iliev
Site Moderator
Site Moderator badge
March 25, 2024

This comment has been deleted

    Try DigitalOcean for free

    Click below to sign up and get $200 of credit to try our products over 60 days!

    Sign up

    Featured on Community

    Get our biweekly newsletter

    Sign up for Infrastructure as a Newsletter.

    Hollie's Hub for Good

    Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.

    Become a contributor

    Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

    Welcome to the developer cloud

    DigitalOcean makes it simple to launch in the cloud and scale up as you grow — whether you're running one virtual machine or ten thousand.

    Learn more
    DigitalOcean Cloud Control Panel