A container is just a process

If you are a regular reader of this blog, you know I’ve been hacking on container technology for a while now. A common misconception you see in the wild is that people conflate containers and virtual machines, thinking they are equivalent. This blog post illustrates how containerized applications are actually plain processes that run natively on your Linux machine1. A minimal container image Let’s create a tiny Go program that listens for HTTP requests and serves the text “Hello world” to all visitors: