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Docker Orchestration

You're reading from Docker Orchestration A concise, fast-paced guide to orchestrating and deploying scalable services with Docker

Product type Paperback

Published in Jan 2017

Publisher Packt

ISBN-13 9781787122123

Length 284 pages

Edition 1st Edition

Languages

Go

Tools

Docker

Concepts

Containerization

Authors (2):

Randall Smith

Gianluca Arbezzano

View More author details

Table of Contents (11) Chapters

Preface

1. Getting Started with Docker Orchestration

2. Building Multi-Container Applications with Docker Compose FREE CHAPTER

3. Cluster Building Blocks – Registry, Overlay Networks, and Shared Storage

4. Orchestration with Docker Swarm

5. Deploying and Managing Services with Kubernetes

6. Working with Mesosphere

7. Using Simpler Orchestration Tools – Fleet and Cattle

8. Monitoring Your Cluster

9. Using Continuous Integration to Build, Test, and Deploy Containers

10. Why Stop at Containers? Automating Your Infrastructure

Managing a swarm

One of the easiest pieces to overlook when it comes to orchestrating Docker is how to manage the cluster itself. In this section, you will see how to manage your swarm including adding and removing nodes, changing their availability, and backup and recovery. In Chapter 10, Why Stop at Containers? Automating Your Infrastructure, we will learn about automating node deployment in depth.

Adding a node

New worker nodes can be added at any time. Install Docker, then run docker swarm join-token worker to get the docker swarm join command to join the host to the swarm. Once added, the worker will be available to run tasks. Take note that the command to join the cluster is consistent. This makes it easy to add to a host configuration script and join the swarm on boot.

You can get a list of all of the nodes in the swarm by running docker node ls from a manager node:

$ docker node ls
ID                     HOSTNAME  STATUS  AVAILABILITY  MANAGER STATUS
1i3wtacdjz5p509bu3l3qfbei    worker1...

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Authors (2)

Arbezzano

Arbezzano

See other products by Arbezzano

Randall Smith

Randall Smith

Randall Smith is a senior systems administrator at Adams State University. He has been administering Windows, Linux, and BSD systems since 1999. He has been active in helping other sysadmins solve problems online and off. He has presented at the Colorado Higher Ed Computing Organization and Educause conferences on topics including Linux KVM and Ceph. In his spare time, Randall streams Let's Play gaming videos at Music Free Gaming on YouTube and Twitch.

See other products by Randall Smith

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