Intro to Docker Images, Containers

First, these terms mean the same in the docker world: Image, Docker Image, container image and OCI (Open Container Initiative) image. Build time vs Run Time In a typical production cloud deployment, your registry and machines sit in the cloud.While DockerHub is the default registry, there are many options with cloud providers.With the simple case…

Before Docker

Imagine a fresh linux installation. You may want to run a program.A program is a file on a disk. A process is a running instance of that program. Why do we want isolation?Security, Fault containment, Multi-tenancy Step 0: chroot: first steps towards IsolationOne of the oldest isolation tools in Linux is chroot, which changes the…