Getting Started with Containerization

coverpage

Title Page

Copyright

Getting Started with Containerization

About Packt

Why subscribe?

Packt.com

Contributors

About the authors

Packt is searching for authors like you

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Conventions used

Get in touch

Reviews

What Are Containers and Why Should I Use Them?

Technical requirements

What are containers?

Why are containers important?

What's the benefit for me or for my company?

The Moby project

Docker products

Docker CE

Docker EE

The container ecosystem

Container architecture

Summary

Questions

Further reading

Setting up a Working Environment

Technical requirements

The Linux command shell

PowerShell for Windows

Using a package manager

Installing Homebrew on a Mac

Installing Chocolatey on Windows

Choosing a code editor

Docker Toolbox

Docker for Mac and Docker for Windows

Installing Docker for Mac

Installing Docker for Windows

Using docker-machine on Windows with Hyper-V

Minikube

Installing Minikube on Mac and Windows

Testing Minikube and kubectl

Summary

Questions

Further reading

Working with Containers

Technical requirements

Running the first container

Starting stopping and removing containers

Running a random quotes container

Listing containers

Stopping and starting containers

Removing containers

Inspecting containers

Exec into a running container

Attaching to a running container

Retrieving container logs

Logging drivers

Using a container-specific logging driver

Advanced topic – changing the default logging driver

Anatomy of containers

Architecture

Namespaces

Control groups (cgroups)

Union filesystem (UnionFS)

Container plumbing

Runc

Containerd

Summary

Questions

Further reading

Creating and Managing Container Images

What are images?

The layered filesystem

The writable container layer

Copy-on-write

Graph drivers

Creating images

Interactive image creation

Using Dockerfiles

The FROM keyword

The RUN keyword

The COPY and ADD keywords

The WORKDIR keyword

The CMD and ENTRYPOINT keywords

A complex Dockerfile

Building an image

Multistep builds

Dockerfile best practices

Saving and loading images

Sharing or shipping images

Tagging an image

Image namespaces

Official images