Organisations

flowchart TD

ORGS[Organisations] --> MOBY[Moby]

ORGS --> CONTAINERS[containers]

ORGS --> OCI[Open Container Initiative]

ORGS --> CSP[Compose Specification]

ORGS --> CNCF[Cloud Native Container Foundation]

CNCF

Refer: https://www.cncf.io/

Cloud Native Container Foundation

containerd and distribution are donated by docker to CNCF

CNCF also hosts kubernetes, and its associated projects

CRI-O also kind of comes under CNCF as one of the “graduated” projects

OCI

Refer: https://opencontainers.org/ and their github-org

Defines a standard specifications for runtimes, images, and distribution

Docker donated runc to OCI

Compose-spec

Refer: https://compose-spec.io/ and github

Contains repositories with specification for “compose” files like docker-compose.yml

Moby

Refer: https://github.com/moby

A github organisation where Docker hosts all their open-sourced repositories.

The moby/moby repo is the upstream of docker engine (dockerd)

The components and tools in the Moby Project are initially the open source components that Docker and the community have built for the Docker Project.
e.g. libnetwork, hyperkit, swarmkit

Containers

Refer: https://github.com/containers

I think this was initiated by redhat. Provides complete alternative to docker ecosystem.

Manages podman, container runtimes crun and “youki”, and other libraries like image, storage, buildah, skopeo.