DevOps East 2017 Concurrent Session - Containers: Are They Virtual Machines with Magical Powers? | TechWell


Thursday, November 9, 2017 - 10:00am to 11:00am

Containers: Are They Virtual Machines with Magical Powers?

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Containers are all the rage. But if you're going to use them—especially in production—you need a good conceptual foundation so you can understand their capabilities and implications. People often describe containers as “lightweight virtual machines,” which is misleading as it suggests there's some sort of hypervisor involved. Liz Rice explains what a container really is while creating one live with just a few lines of code. Learn what namespaces, control groups, and changing root are, and how to use them to create a container and give it a restricted view of what’s happening on the host machine. Liz presents live demos to show the effect that different namespaces have on a running process, and illustrates how to use control groups to constrain the resources that a containerized process can access. By understanding what containers are and their capabilities, you can better understand their implications for performance and security in a production environment.

Liz Rice
Aqua Security

Liz Rice (@lizrice) is the technology evangelist at container security specialists Aqua Security. Previously she was CEO of Microscaling Systems and a developer of MicroBadger, the tool for managing container metadata. With a background in software engineering, Liz has a wealth of development, team, and product management experience—working on network protocols and distributed systems, and in digital technology sectors such as VOD, music, and VoIP at companies including Skype,, and Metaswitch Networks. When not building startups and writing code, Liz loves riding bikes in places with better weather than her native London. Attendees at DockerCon this year voted Liz’s presentation as one of the top sessions, so don’t miss this opportunity to see her speak live!