Book Image

Hands-On Enterprise Automation on Linux

By : James Freeman
Book Image

Hands-On Enterprise Automation on Linux

By: James Freeman

Overview of this book

Automation is paramount if you want to run Linux in your enterprise effectively. It helps you minimize costs by reducing manual operations, ensuring compliance across data centers, and accelerating deployments for your cloud infrastructures. Complete with detailed explanations, practical examples, and self-assessment questions, this book will teach you how to manage your Linux estate and leverage Ansible to achieve effective levels of automation. You'll learn important concepts on standard operating environments that lend themselves to automation, and then build on this knowledge by applying Ansible to achieve standardization throughout your Linux environments. By the end of this Linux automation book, you'll be able to build, deploy, and manage an entire estate of Linux servers with higher reliability and lower overheads than ever before.
Table of Contents (23 chapters)
1
Section 1: Core Concepts
5
Section 2: Standardizing Your Linux Servers
10
Section 3: Day-to-Day Management
16
Section 4: Securing Your Linux Servers

Patching with Katello

As Katello is built around technologies we have already explored, such as Pulp, it carries with it the same limitations we have already seen regarding DEB packages. For instance, although repositories of DEB packages can be built up easily in Katello, and even the appropriate GPG public keys imported, the resulting published repositories do not feature an InRelease or Release.gpg file and so must be implicitly trusted by all hosts that use these. Similarly, although there is a complete subscription management framework available for RPM-based hosts consisting of the subscription-manager tool and the Pulp Consumer agent, again, no such equivalent exists for DEB hosts and so these must be configured manually.

Although it would be entirely possible to configure RPM-based hosts to use the built-in technologies, DEB-based ones would have to be configured with...