Runtimes supported by containerd apart from runC?

0
votes

Does containerd support any other runtimes apart from runC?

Further, the containerd site says, "An industry-standard container runtime with an emphasis on simplicity, robustness and portability". Does this refer to any specific standard like the OCI or CRI.

1
dockerlinux-containerscontainerdrunc

1 Answers

1
votes

From: github.com/containerd/containerd

Runtime Requirements

Runtime requirements for containerd are very minimal. Most interactions with the Linux and Windows container feature sets are handled via runc and/or OS-specific libraries (e.g. hcsshim for Microsoft).

From: github.com/Microsoft/hcsshim

hcsshim

This package contains the Golang interface for using the Windows Host Compute Service (HCS) to launch and manage Windows Containers. It also contains other helpers and functions for managing Windows Containers such as the Golang interface for the Host Network Service (HNS).

Regarding the OCI part of your question:

OCI Runtime Specification

containerd fully supports the OCI runtime specification for running containers. We have built in functions to help you generate runtime specifications based on images as well as custom parameters.

You can specify options when creating a container about how to modify the specification.

redis, err := client.NewContainer(context, "redis-master", containerd.WithNewSpec(oci.WithImageConfig(image)))