Move Kubernetes Pods to a Secured Runtime Sandbox

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Move Kubernetes Pods to a Secured Runtime Sandbox

Runtime sandboxes are a powerful tool for secure container isolation in Kubernetes. In this lab, you will work to implement a runtime sandbox and run containers within it.

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Lab Info

Level

Advanced

Last updated

Sep 25, 2025

Duration

30m

Challenge

Install gVisor and Create a containerd Sandbox Configuration

Install gVisor on both the control plane node and the worker node.

Create a containerd runtime configuration called runsc on both servers as well.
Challenge

Create a RuntimeClass for the Sandbox

Create a RuntimeClass called runsc-sandbox. Configure it to use the runsc containerd configuration.
Challenge

Move All Pods in the questionablesoft Namespace to the New Runtime Sandbox

Move all Pods in the questionablesoft namespace to the new runtime sandbox. You will need to delete and re-create the Pods to accomplish this. For convenience, you can find manifest files for these Pods in /home/cloud_user.

Note: If you wish to compare the sandboxed Pods to a non-sandboxed Pod, there is a non-sandboxed Pod called securicorp-api in the default namespace.

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