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Rancher Deep Dive

Rancher Deep Dive

By : Matthew Mattox
4.4 (7)
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Rancher Deep Dive

Rancher Deep Dive

4.4 (7)
By: Matthew Mattox

Overview of this book

Knowing how to use Rancher enables you to manage multiple clusters and applications without being locked into a vendor’s platform. This book will guide you through Rancher’s capabilities while deepening your understanding of Kubernetes and helping you to take your applications to a new level. The book begins by introducing you to Rancher and Kubernetes, helping you to learn and implement best practices. As you progress through the chapters, you’ll understand the strengths and limitations of Rancher and Kubernetes and discover all the different ways to deploy Rancher. You’ll also find out how to design and deploy Kubernetes clusters to match your requirements. The concluding chapters will show you how to set up a continuous integration and continuous deployment (CI/CD) pipeline for deploying applications into a Rancher cluster, along with covering supporting services such as image registries and Helm charts. By the end of this Kubernetes book, you’ll be able to confidently deploy your mission-critical production workloads on Rancher-managed Kubernetes clusters.
Table of Contents (25 chapters)
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1
Part 1 – Rancher Background and Architecture and Design
4
Part 2 – Installing Rancher
8
Part 3 – Deploying a Kubernetes Cluster
12
Part 4 – Getting Your Cluster Production-Ready
20
Part 5 – Deploying Your Applications

Rules for architecting a solution

The pros are as follows:

  • A single-node Rancher is very simple to set up as you just need to deploy a single container.
  • It’s very fast to spin up. A single-node Rancher only takes a few minutes to start compared with RKE, which can take 10-15 minutes to start.
  • It has low resource utilization, compared to RancherD and a complete RKE cluster. A single-node Rancher uses a lot less CPU, memory, and storage.
  • There is no need for a load balancer or DNS if you want just the server hostname or IP address.
  • A single-node Rancher can be run on a laptop. (Note: Rancher Desktop is a better product for this solution.)

The cons are as follows:

  • A single-node Rancher is not designed for production.
  • Rancher official and community support is very limited.
  • There are limited troubleshooting options as the K3s settings are baked into the code and cannot be changed without building a new release.
  • The long-term future...
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Rancher Deep Dive
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