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Hybrid Cloud Apps with OpenShift and Kubernetes - Delivering Highly Available Applications and Services

by Michael Elder, Jake Kitchener, Brad Topol, 2021

Selling your CTO on the merits of OpenShift and Kubernetes is only the beginning. To operate and scale OpenShift, you also need to know how to manage and expose resources to application teams and continuously deliver changes to the applications running in these environments. With this practical book, new and experienced developers and operators will learn specific techniques for operationalizing OpenShift and Kubernetes in the enterprise.

Industry experts Michael Elder, Jake Kitchener, and Brad Topol show you how to run OpenShift and Kubernetes in production and deliver your applications to a highly available, secure, and scalable platform. You'll learn how to build a strong foundation in advanced cluster operational topics, such as tenancy management, scheduling and capacity management, cost management, continuous delivery, and more.

• Examine the fundamental concepts of Kubernetes architecture
• Get different Kubernetes and OpenShift environments up and running
• Dive into advanced resource management topics, including capacity planning
• Learn how to support high availability inside a single cluster
• Use production-level approaches for continuous delivery and code promotion across clusters
• Explore hybrid cloud use cases, including multicluster provisioning, upgrading, and policy support
• Devise and deliver disaster recovery strategies

Michael Elder is the IBM Distinguished Engineer for the IBM Multicloud Platform. His technical focus is enabling enterprises to deploy a common application programming model and operational model based on Kubernetes in hybrid architectures deployed across multicloud infrastructure. Before leading the private cloud platform, he led DevOps solutions including IBM UrbanCode and IBM Bluemix Continuous Delivery. Through his leadership and execution, IBM was able to offer automated deployment capabilities for clients’ applications, into a variety of cloud delivery platforms. Today, he is enabling clients to bridge their existing IT architectures to modern Platform-as-a-Service runtimes to compete in an ever more digital world.

As a Senior Technical Staff Member within IBM Cloud, Jake is responsible for the architecture, implementation, and delivery of the IBM Cloud Kubernetes Service. Jake is a habitual open source cloud adopter starting with OpenStack and then migrating to containers and Kubernetes. He has been developing and delivering IBM Cloud container platforms for over five years. Jake also has a passion for all things DevOps.

Dr. Brad Topol is an IBM Distinguished Engineer leading efforts focused on Open Technologies and Developer Advocacy. Brad is a Kubernetes contributor, serves as a member of the Kubernetes Conformance Workgroup, and is a Kubernetes Documentation Maintainer. He also leads a large development team focused on contributing to and improving Kubernetes. In addition, Brad serves as the Developer Advocate CTO for Kubernetes and container technologies and has cross IBM responsibility for all aspects of container and Kubernetes developer advocacy initiatives including collateral development, presence at conferences, and meetups.

• Publisher ‏ : ‎ O'Reilly Media; 1st edition (June 29, 2021)
• Language ‏ : ‎ English
• Paperback ‏ : ‎ 274 pages
• ASIN ‏ : ‎ B097YWFJWC
• ISBN-10 ‏ : ‎149208381X
• ISBN-13 ‏ : ‎ 978-1492083818

Foreword

Software is integral to every industry today. From web and mobile apps that accelerate the digital transformation of business, to more efficient backend systems that support the growth of your business, to technology that’s embedded in devices as part of everyday life, containers have established themselves as a fundamental aspect of software delivery and operation across the spectrum.

The operations and applications teams powering these transformations are seeing their application footprints grow tremendously in multiple locations, clouds, data centers, and out to the edge. The bigger the organization, the broader the footprint and the more complex the challenges. As cloud becomes an integral part of application deployment, organizations also wish to modernize their existing footprints and accelerate their development teams.

So what has powered these trends? Open source technologies enable standardization, which leads to an explosion of ecosystem benefits and approaches, which then leads to a need for new standardization. As one of the most successful open source ecosystems, Kubernetes has created a significant change in how we build and run applications.

A key question that is probably on your mind is how to balance velocity and flexibility—scaling, integrating, and simplifying—while increasing your teams’ ability to deliver value. Your organization may be heavily driven by your application teams, organically adopting new services in cloud footprints. In that case, you are likely focused on how to bring consistency of operational concerns to greenfield projects while minimizing disruption to teams.

Your organization may have a broader focus—actively spanning the full spectrum of compute, including devices at the edge, gateways and local application processing in data centers, visualization, and archival in the cloud. These true “hybrid” applications have unique needs at each location, but that location-specific behavior only strengthens the need to keep operational concerns aligned.

Finally, your organization may run workloads similar to a large percentage of enterprise applications that are becoming truly cloud-agnostic. Thanks to modern application development frameworks, tools, and application infrastructure like Kubernetes, the underlying details of the infrastructure are less of a barrier to application portability and availability. For an organization aspiring to be cloud-agnostic, you are probably building a platform to consolidate and automate the life cycle of your business. The modern platforms to support hybrid cloud must address a number of serious challenges such as security, data consolidation, cost management, and increasing developer velocity to serve the applications that run your business.

As one of the founding members of the Kubernetes project and as lead OpenShift architect, I’ve spent the last seven years working to help large enterprises and small teams find that middle ground, as well as to ensure a consistent application environment across cloud, datacenter, and edge that enables customer platforms to succeed.

As Kubernetes has matured, so has the complexity and scale of user successes. The hockey stick of growth has taken us into broad adoption, and it’s the right time to take stock of the challenges, patterns, and technologies that can help bring that growth under control.

This book dives deep on the problems and solutions that the most successful enterprise Kubernetes teams have encountered and gives you a trusted path to follow. The fusion of perspectives is key—from Brad’s work in the community driving consistency across open source projects and finding common ground for users, to Jake’s expertise in building and running cloud-scale Kubernetes with IBM Kubernetes Service and IBM Red Hat OpenShift Service, to Michael’s deep focus on helping organizations consolidate and secure multicluster Kubernetes as architect to Red Hat’s Advanced Cluster Management product.

Together they represent an immense amount of practical experience in how to leverage Kubernetes effectively at scale in a way that can help organizations support their growing application fleet, whether it be cloud-first, multicloud, or connected to the edge.

As we continue to standardize and simplify how applications are built and deployed across a wide range of environments, open source and open ecosystems help organizations collaborate towards shared goals. Kubernetes and other tools in our ecosystem are fundamental building blocks toward that end, and this book will help you navigate the trade-offs and opportunities along the way.

Clayton Coleman

Senior Distinguished Engineer at Red Hat

Architect, Containerized Application Infrastructure (OpenShift and Kubernetes)