Container Runtime

Container runtimes provide the low-level tools for running containers using OS primitives like namespaces and cgroups. Examples: containerd, CRI-O, runc. Docker uses containerd as its runtime.

Input:

crictl ps

Output:

CONTAINER       IMAGE               CREATED          STATE
123abc456def    nginx:latest        10 minutes ago   Running

Lists containers managed by a runtime using CRI (Kubernetes standard).

References:

• https://man7.org/linux/man-pages/man7/namespaces.7.html

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