February 2023
Intermediate to advanced
40 pages
47m
English
Content preview from What Is Portainer?
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Chapter 1. Kubernetes Is the Operating System of the Cloud
Before diving deeper into the specifics of Portainer, I want to establish a bit of context in terms of the ecosystem Portainer comes from and its broader reasons for existence. As mentioned, I first used Portainer to manage a few Docker Swarm clusters. Over the years, the industry has backed away from Docker Swarm and toward Kubernetes as its container orchestrator of choice. My clients have followed this trend. But my initial need to provide secure access to containerized applications for teams of developers persisted—and it still does today. Luckily, Portainer quickly added support for Kubernetes as a container orchestrator.
While the underlying mechanics are fairly different between Docker Swarm and Kubernetes, Portainer managed to provide the same user experience for both systems. That made it easy for the teams I already worked with to make a smooth transition from one platform to the other. To understand why one would go with one orchestrator over another and why Portainer started to focus mainly on Kubernetes, we need to know a few things about Kubernetes itself and its own raison d’être.
In 2014, Kubernetes was developed and released by Google as an improved variant of container orchestration, building upon the knowledge Google acquired over years of running distributed systems at scale.
Note
Kubernetes was donated to the Cloud Native Computing Foundation (CNCF) in 2015 with its first stable release and has been ...
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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.