CoreOS Essentials by Mocevicius, Rimantas -- Read -- Imperial Library of Trantor

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CoreOS Essentials

Table of Contents CoreOS Essentials Credits About the Author About the Reviewers www.PacktPub.com

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Preface

What this book covers What you need for this book Who this book is for Conventions Reader feedback Customer support

Downloading the example code Errata Piracy Questions

1. CoreOS – Overview and Installation

An overview of CoreOS How CoreOS works Installing the CoreOS virtual machine

Cloning the coreos-vagrant GitHub project Working with cloud-config Startup and SSH

Summary

2. Getting Started with etcd

Introducing etcd Reading and writing to etcd from the host machine

Logging in to the host Reading and writing to ectd

Reading and writing from the application container Watching changes in etcd TTL (time to live) examples Use cases of etcd Summary

3. Getting Started with systemd and fleet

Getting started with systemd

An overview of systemd The systemd unit files An overview of systemctl

Getting started with fleet

The fleet unit files An overview of fleetctl

References Summary

4. Managing Clusters

Determining the optimal etcd cluster size Bootstrapping a local cluster

Cloning the coreos-vagrant project Customizing a cluster via the cloud-config file Scheduling a fleet unit in the cluster

References Summary

5. Building a Development Environment

Setting up the local development environment

Setting up the development VM What happened during the VM installation? Deploying the fleet units

Bootstrapping a remote test/staging cluster on GCE

Test/staging cluster setup

Creating our cluster workers Running fleetctl commands on the remote cluster

References Summary

6. Building a Deployment Setup

Code deployment on Test and Staging servers

Deploying code on servers

Setting up the Docker builder and private Docker registry worker

Server setup

Summary

7. Building a Production Cluster

Bootstrapping a remote production cluster on GCE

Setting up the production cluster

Deploying code on production cluster servers

Setting up the Docker builder server Deploying code on production servers

An overview of the Dev/Test/Staging/Production setup PaaS based on fleet

Deploying services using PAZ

Another cloud alternative for running CoreOS clusters Summary

8. Introducing CoreUpdate and Container/Enterprise Registry

Update strategies

Automatic updates Uses of update strategies

CoreUpdate Container Registry

Quay.io overview

Enterprise Registry Summary

9. Introduction to CoreOS rkt

An introduction to rkt

Features of rkt The basics of App container Using rkt rkt networking rkt environment variables rkt volumes

Running streamlined Docker images with rkt Converting Docker images into ACI Summary

10. Introduction to Kubernetes

What is Kubernetes?

Primary components of Kubernetes

Kubernetes cluster setup Tectonic – CoreOS and Kubernetes combined for a commercial implementation Summary

Index

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