You're reading from Kubernetes – An Enterprise Guide - Second Edition

Product typeBook

Published inDec 2021

PublisherPackt

ISBN-139781803230030

Edition2nd Edition

Concepts

Cloud Computing

Authors (2):

Marc Boorshtein

Scott Surovich

View More author details

Introduction to RBAC

Before we jump into RBAC, let's take a quick look at the history of Kubernetes and access controls.

Before Kubernetes 1.6, access controls were based on Attribute-Based Access Control (ABAC). As the name implies, ABAC provides access by comparing a rule against attributes, rather than roles. The assigned attributes can be assigned any type of data, including user attributes, objects, environments, and locations.

In the past, to configure a Kubernetes cluster for ABAC, you had to set two values on the API server:

--authorization-policy-file
--authorization-mode=ABAC

authorization-policy-file is a local file on the API server. Since it's a local file on each API server, any changes to the file require privileged access to the host and will require you to restart the API server. As you can imagine, the process to update ABAC policies becomes difficult and any immediate changes will require a short outage as the API servers...

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Kubernetes – An Enterprise Guide - Second Edition

Published in: Dec 2021Publisher: PacktISBN-13: 9781803230030

Authors (2)

Marc Boorshtein

Marc Boorshtein has been a software engineer and consultant for 20 years and is currently the CTO (Chief Technology Officer) of Tremolo Security, Inc. Marc has spent most of his career building identity management solutions for large enterprises, U.S. Government civilian agencies, and local government public safety systems.
Read more about Marc Boorshtein

Scott Surovich

Scott Surovich has been involved in the industry for over 25 years and is currently the Global Container Engineering Lead at a tier 1 bank as the Global on-premises Kubernetes product owner architecting and, delivering cluster standards, including the surrounding ecosystem. His previous roles include working on other global engineering teams, including Windows, Linux, and virtualization.
Read more about Scott Surovich

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