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The author uses a Mac and uses Docker Desktop or colima x Docker CLI to realize a Docker development environment. Dcoker Desktop uses an internal HyperKit (macOS hypervisor) to launch a Linux VM and run dockerd in it. Docker Desktop is based on Lima, and it generates Lima configuration files, and it is used to run Linux.
Direct use of containerd? containerd? turns out I didn't know anything about container technology. containerd was originally developed by Docker in 2015 as a daemon that provided basic container management capabilities under Docker. containerd's scope has gradually expanded and now seems to cover almost everything in the Docker Engine. For example, nerdctl is a CLI for containerd; the UX is almost identical to the Docker CLI, and Docker Compose is also supported (nerdctl compose).
The author uses a Mac and uses Docker Desktop or colima x Docker CLI to realize a Docker development environment. Dcoker Desktop uses an internal HyperKit (macOS hypervisor) to launch a Linux VM and run dockerd in it. Docker Desktop is based on Lima, and it generates Lima configuration files, and it is used to run Linux.
In addition, the Finch article also mentions BuildKit, which should also be kept in mind. As before, I will focus on understanding the relationship with Docker. I remember myself, and I have seen things like DOCKER_BUILDKIT=1 docker build . I had a chance to see something likeDOCKER_BUILDKIT=1 docker build . This is a way to use BuildKit with Docker, which seems to have the following advantages over the Docker default build
Looking at the details, it seems that Kubernetes used to touch Docker for managing containers on distributed environments, but in recent years, they started to use containerd directly.