Docker containers turned four years old this month. If you were paying attention to Docker in its early days, you know that the Docker ecosystem today looks nothing like it did then. Here’s how the Docker world has evolved since Docker’s launch in 2013.
Docker’s debuted generated a splash among developers — you can hear them oohing and aahing in this demonstration of Docker at the PyCon event in 2013 — but its commercial importance at the time of Docker’s launch was unclear. Back then, Docker was just an implementation of LXC, a Linux containerization technology that had already been around for years. LXC was an interesting platform, but few people in 2013 thought of it as the building block for deployment infrastructure that could replace virtual machines.
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