June 2017
Intermediate to advanced
54 pages
1h 5m
English
Content preview from Enterprise Docker
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Chapter 7. A Brief History of Microservices and Containerization
To understand fully what containers are doing in the enterprise today, you have to understand where they came from. This chapter details the history of containers and other microservices technology, including but by no means limited to Docker.
As we will see, that history stretches back to the early decades of computing. It involves application containers of the type Docker supports, but it has many other strands as well. It entails some practices that have been widespread in the enterprise for years, such as service-oriented architecture (SOA), as well as some very obscure technologies, like jails (see “The Origins of Containers: chroot and FreeBSD Jails”).
Microservices from the 1960s to Today
A microservice, as the term suggests, is any type of small service that interacts with other services in order to run a software application (“small” in this context is defined subjectively). Docker containers are a building block for microservices architectures because each Docker container can host a single service. In many cases, deploying a complete application via Docker requires the use of multiple containers.
But Docker certainly did not invent microservices, and application containers are just one possible building block for a microservices-based application. Consider the following developments, which predate Docker by decades.
Object-Oriented Programming
To understand the origins of the microservices concept, you ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.