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Module 1: Using containerd with the Default Command-Line Client
How to Work with Container Images Using ctr
How to Run and Manage Containers Using ctr
Module 2: Exploring the Main containerd Installation Components
How to Install and Configure containerd on a Linux Server
Module 3: Evaluating contaiNERD CTL as a Potential Docker Alternative
How to Use nerdctl If You Are Familiar with Docker CLI
Module 4: Debugging Kubernetes Pods Managed by containerd
How to Communicate with containerd on a Kubernetes Node

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Lesson in How (and Why) to Use containerd from the Command Line

How to Communicate with containerd on a Kubernetes Node

crictl is a command-line client for Kubernetes CRI-compatible container runtimes.

Click here to learn more about Kubernetes Container Runtime Interface (CRI).

Kubernetes Container Runtime Interface (CRI) was introduced to make Kubernetes container runtime-agnostic. The Kubernetes node agent, kubelet, implementing the CRI client API, can use any container runtime implementing the CRI server API to manage containers and pods on its node.

Kubernetes Container Runtime Interface (CRI).

Since version 1.1, containerd comes with a built-in CRI plugin. Hence, containerd is a CRI-compatible container runtime. Therefore, it can be used with crictl.

crictl was created to inspect and debug container runtimes and applications on a Kubernetes node. It supports the following operations:

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