Containerd Ctr
Containerd Ctr is a command-line interface (CLI) tool for interacting with containerd, a high-level container runtime that manages the complete container lifecycle on a host system. It allows users to directly manage containers, images, and other containerd resources without relying on higher-level tools like Docker. Ctr provides low-level access to containerd's core functionalities, making it useful for debugging, testing, and automation in containerized environments.
Developers should learn Containerd Ctr when working with containerd-based systems, such as Kubernetes clusters using containerd as the container runtime, or for low-level container management tasks where Docker or other tools abstract too much control. It is particularly valuable for debugging container issues, automating container operations in CI/CD pipelines, and understanding the underlying mechanics of container runtimes in cloud-native applications.