Top 3 oci-runtime Open-Source Projects

cri-o

33 5,013 9.7 Go

Open Container Initiative-based implementation of Kubernetes Container Runtime Interface

Project mention: The Road To Kubernetes: How Older Technologies Add Up | dev.to | 2024-02-05

Kubernetes on the backend used to utilize docker for much of its container runtime solutions. One of the modular features of Kubernetes is the ability to utilize a Container Runtime Interface or CRI. The problem was that Docker didn't really meet the spec properly and they had to maintain a shim to translate properly. Instead users could utilize the popular containerd or cri-o runtimes. These follow the Open Container Initiative or OCI's guidelines on container formats.

crun

30 2,777 9.3 C

A fast and lightweight fully featured OCI runtime and C library for running containers

Project mention: Show HN: dockerc – Docker image to static executable "compiler" | news.ycombinator.com | 2024-03-06

Yep pretty much.
The executables bundle crun (a container runtime)[0], and a fuse implementation of squashfs and overlayfs. Appended to that is a squashfs of the image.
At runtime the squashfs and overlayfs are mounted and the container is started.
[0]: https://github.com/containers/crun

InfluxDB

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oci-lib

3 12 0.0 Rust

oci-image and oci-runtime spec in rust. Un-official mirror of libocispec.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).