Docker ((hot)) | Stephen Grider

With the rise of Podman, Buildah, and containerd, is a deep dive into Docker CLI still worthwhile? Grider’s course implicitly argues yes. The industry standard Dockerfile format is not going away. The mental model of namespaces, control groups (cgroups), and union file systems is universal. Learning Docker with Grider is essentially learning the lingua franca of modern cloud computing.

A critical distinction Grider makes early on is the difference between a development configuration and a production configuration. He introduces Docker Compose not just as a way to run multiple containers, but as a tool to manage environment-specific variables. stephen grider docker

Grider frames Docker not as a tool, but as a solution to a historical problem: the "Matrix of Hell." He illustrates the difficulty of managing differing dependency versions across development, testing, and production environments. With the rise of Podman, Buildah, and containerd,

Years after its release, Stephen Grider’s Docker material remains a top resource for several reasons: The mental model of namespaces, control groups (cgroups),