Autorentext
Tim Boring is a senior software engineer at Voltus, Inc. He has twenty years of experience in technology organizations ranging from small business to global enterprises. His career spans roles in technical support to site reliability and software engineering. Tim is most interested in the design of software systems and distributed systems in particular.

Klappentext

**Understand Kubernetes and other orchestration systems deeply by building your own using Go and the Docker API.

In **Build an Orchestrator in Go you will learn how to:

• Identify the components that make up any orchestration system
• Schedule containers on to worker nodes
• Start and stop containers using the Docker API
• Manage a cluster of worker nodes using a simple API
• Work with algorithms taken from cutting-edge Google Borg research papers
• Demystify orchestration systems like Kubernetes and Nomad
  Orchestration systems like Kubernetes coordinate other software subsystems and services to create a complete organized system. Although orchestration tools have a reputation for complexity, theyGÇÖre designed around few important patterns that apply across many aspects of software development. **Build an Orchestrator in Go reveals the inner workings of orchestration frameworks by guiding you as you design and implement your own using the Go SDK. As you create your own orchestration framework, youGÇÖll improve your understanding of Kubernetes and its role in distributed system design. YouGÇÖll also build the skills required to design custom orchestration solutions for those times when an out-of-the-box solution isnGÇÖt a good fit.

Zusammenfassung
Understand Kubernetes and other orchestration systems deeply by building your own using Go and the Docker API.

In Build an Orchestrator in Go* you will learn how to:

• Identify the components that make up any orchestration system
• Schedule containers on to worker nodes
• Start and stop containers using the Docker API
• Manage a cluster of worker nodes using a simple API
• Work with algorithms taken from cutting-edge Google Borg research papers
• Demystify orchestration systems like Kubernetes and Nomad
  Orchestration systems like Kubernetes coordinate other software subsystems and services to create a complete organized system. Although orchestration tools have a reputation for complexity, they're designed around few important patterns that apply across many aspects of software development. Build an Orchestrator in Go* reveals the inner workings of orchestration frameworks by guiding you as you design and implement your own using the Go SDK. As you create your own orchestration framework, you'll improve your understanding of Kubernetes and its role in distributed system design. You'll also build the skills required to design custom orchestration solutions for those times when an out-of-the-box solution isn't a good fit.

about the technology

Orchestration systems provide the management framework for software and infrastructure that's distributed across multiple machines and services. By managing the many individual components and containers in a large application, they ensure web apps are resilient and reliable, automatically switching between resources in response to crashes and outages. A properly designed orchestration system can seamlessly scale to handle traffic loads, and reduce time-consuming manual work for sysadmin and site reliability engineers.

about the book

Build an Orchestrator in Go* teaches you to implement an orchestrator from scratch. You'll discover the components that make up all orchestration systems, and use the Docker API and Go SDK to build layers of functionality from tasks, to workers, to the manager. Learn how to save on costs by maximising the usage of a cluster, or spread tasks among workers to avoid overload and downtime. Once you've built your working system, you'll even implement a command line user interface to easily manage your orchestrator.

Inhalt

table of contents

PART 1: INTRODUCTION

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1WHAT IS AN ORCHESTRATOR?

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2FROM MENTAL MODEL TO SKELETON CODE

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3HANGING SOME FLESH ON THE TASK SKELETON

PART 2: WORKER

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4WORKERS OF THE CUBE, UNITE!

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5AN API FOR THE WORKER

6 METRICS

PART 3: MANAGER

7 THE MANAGER ENTERS THE ROOM

8 AN API FOR THE MANAGER

9 COLLECTING METRICS FROM THE WORKERS

PART 4: SCHEDULING

10 THE SCHEDULING PROBLEM

11 DESIGNING A MORE SOPHISTICATED SCHEDULER FOR CUBE

12 IMPLEMENTING THE NEW SCHEDULER

PART 5: CLI

13 OUTLINING THE COMMAND FRAMEWORK

14 IMPLEMENTING THE WORKER COMMANDS

15 IMPLEMENTING THE MANAGER COMMANDS