https://shouldenough.com One article per technology: the shortest correct path to being productive with it. Written against named versions and re-run when they move. Not tutorials, not courses. en Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/what-docker-is-and-why-it-exists https://shouldenough.com/courses/dockerize-your-app/what-docker-is-and-why-it-exists It runs fine on your computer but breaks on your colleague's. Why that happens, what it costs on the server, and what Docker changes about it. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/docker-vs-virtual-machines https://shouldenough.com/courses/dockerize-your-app/docker-vs-virtual-machines An operating system has two layers. Docker copies one of them and a virtual machine copies both, and every other difference follows from that. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/install-docker https://shouldenough.com/courses/dockerize-your-app/install-docker Docker Engine on Fedora, Docker Desktop on Mac and Windows, and how to stop typing sudo before every command. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/images-and-containers https://shouldenough.com/courses/dockerize-your-app/images-and-containers An image is the package and a container is that package running. The two words people mix up all the time, sorted out for good. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/registries https://shouldenough.com/courses/dockerize-your-app/registries Where images live, why Docker Hub is the default, what an official image means, and the difference between a registry and a repository. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/run-containers https://shouldenough.com/courses/dockerize-your-app/run-containers Detached mode, port binding, container names, and why docker run keeps leaving containers behind on your machine. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/build-your-own-image https://shouldenough.com/courses/dockerize-your-app/build-your-own-image Seven lines of Dockerfile turn a Node app into an image, and three of those lines are the only ones that change for another language. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/main-docker-commands https://shouldenough.com/courses/dockerize-your-app/main-docker-commands The dozen commands worth knowing, the difference between run and start, and how to get a shell inside a running container. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/image-tags-and-versions https://shouldenough.com/courses/dockerize-your-app/image-tags-and-versions Why latest promises nothing, how to tag your own builds, and what docker tag does that docker build does not. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/dockerize-your-app/the-docker-workflow https://shouldenough.com/courses/dockerize-your-app/the-docker-workflow Where Docker sits in a real team: local development, a CI build, a private registry, and a server that pulls the image and runs it. DevOps Thu, 20 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/what-a-container-actually-is https://shouldenough.com/courses/docker-for-developers/what-a-container-actually-is Namespaces, cgroups, and the one sentence that makes the rest of the course make sense. DevOps Mon, 17 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/images-layers-and-the-cache https://shouldenough.com/courses/docker-for-developers/images-layers-and-the-cache Why your rebuild takes four seconds or four minutes, and what decides which. DevOps Mon, 17 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/your-first-container https://shouldenough.com/courses/docker-for-developers/your-first-container One command, then everything that command quietly did on your behalf. DevOps Mon, 17 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/ports-and-networking https://shouldenough.com/courses/docker-for-developers/ports-and-networking Publishing, the difference between EXPOSE and -p, and why localhost lied to you. DevOps Mon, 17 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/volumes-and-persistence https://shouldenough.com/courses/docker-for-developers/volumes-and-persistence Where your data goes when a container is removed, and how to keep it. DevOps Mon, 17 Aug 2026 00:00:00 GMT https://shouldenough.com/courses/docker-for-developers/writing-a-dockerfile https://shouldenough.com/courses/docker-for-developers/writing-a-dockerfile Instruction order, multi-stage builds, and the layer that invalidates everything. DevOps Mon, 17 Aug 2026 00:00:00 GMT