Docker Cookbook - Second Edition

By : Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare

2 (1)

Buy this Book

Docker Cookbook - Second Edition

2 (1)

By: Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare

Buy this Book

Overview of this book

Docker is an open source tool used for creating, deploying, and running applications using containers. With more than 100 self-contained tutorials, this book examines common pain points and best practices for developers building distributed applications with Docker. Each recipe in this book addresses a specific problem and offers a proven, best practice solution with insights into how it works, so that you can modify the code and configuration files to suit your needs. The Docker Cookbook begins by guiding you in setting up Docker in different environments and explains how to work with its containers and images. You’ll understand Docker orchestration, networking, security, and hosting platforms for effective collaboration and efficient deployment. The book also covers tips and tricks and new Docker features that support a range of other cloud offerings. By the end of this book, you’ll be able to package and deploy end-to-end distributed applications with Docker and be well-versed with best practice solutions for common development problems.

Preface

Who this book is for

What this book covers

To get the most out of this book

Sections

Get in touch

Free Chapter

Introduction and Installation

Introduction

Verifying requirements for Docker installation

Installing Docker on Ubuntu

Installing Docker on CentOS

Installing Docker on Linux with an automated script

Installing Docker for Windows

Installing Docker for Mac

Pulling an image and running a container

Adding a nonroot user to administer Docker

Finding help with the Docker command line

Working with Docker Containers

Introduction

Listing/searching for an image

Looking at the container logs

Stopping a container

Removing a container

Removing all stopped containers

Setting the restart policy on a container

Getting privileged access inside a container

Accessing the host device inside a container

Injecting a new process into a running container

Reading a container's metadata

Labeling and filtering containers

Reaping a zombie inside a container

Working with Docker Images

Introduction

Creating an image from the container

Creating an account with Docker Hub

Logging in and out of the Docker image registry

Publishing an image to the registry

Looking at the history of an image

Removing an image

Exporting an image

Importing an image

Building an image using a Dockerfile

Building an Apache image – a Dockerfile example

Setting up a private index/registry

Automated builds – with GitHub and Bitbucket

Creating a custom base image

Creating a minimal image using a scratch base image

Building images in multiple stages

Visualizing the image hierarchy

Network and Data Management for Containers

Introduction

Accessing containers from outside

Attaching containers to a host network

Launching containers with no network

Sharing IP addresses with other containers

Creating a user-defined bridge network

Discovering and load balancing containers

Persisting data using volumes

Sharing data between the host and the container

Docker Use Cases

Introduction

Testing with Docker

Performing CI/CD with Shippable and Heroku

Performing CI/CD with TravisCI

Setting up PaaS with OpenShift origin

Building and deploying an app on OpenShift from the source code

Docker APIs and SDKs

Introduction

Working with images using APIs

Building images using APIs

Launching containers using APIs

Performing container operations using APIs

Exploring Docker remote API client libraries

Configuring the Docker daemon for remote connectivity

Securing the Docker daemon's remote connectivity

Docker Performance

Introduction

Benchmarking CPU performance

Benchmarking disk performance

Benchmarking network performance

Getting container resource usage using the stats feature

Setting up performance monitoring

Docker Orchestration and Hosting a Platform

Introduction

Running applications with Docker Compose

Setting up a cluster with Docker Swarm

Using secrets with Docker Swarm

Setting up a Kubernetes cluster

Using secrets with Kubernetes

Scaling up and down in Kubernetes cluster

Setting up WordPress with Kubernetes clusters

Docker Security

Introduction

Setting Mandatory Access Control (MAC) with SELinux

Allowing writes to volumes mounted from the host with SELinux ON

Removing capabilities to break down the power of a root user inside a container

Sharing namespaces between the host and the container

Getting Help and Tips and Tricks

Introduction

Starting Docker in debug mode

Building a Docker binary from the source

Building images without using cached layers

Building your own bridge for container communication

Changing the default OCI runtime

Selecting the logging driver for containers

Getting real-time Docker events for containers

Docker on the Cloud

Introduction

Docker for AWS

Deploying WordPress on Docker for AWS

Docker for Azure

Deploying Joomla! on Docker for Azure

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Installing Docker for Windows

Docker for Windows is a native application that is deeply integrated with Hyper-V virtualization and the Windows networking and filesystems. It is a full-featured development environment that can be used for building, debugging, and testing Docker apps on a Windows PC. It also works well with VPNs and proxies to make it easier when used in a corporate environment.

Docker for Windows supports both Windows and Linux containers out of the box, and it is easy to switch between the two to build your multiplatform applications. It comes with the Docker CLI client, Docker Compose, Docker Machine, and Docker Notary.

Recent releases have also added Kubernetes support so that you can easily create a full Kubernetes environment on your machine with just the click of a button.

Getting ready

Docker for Windows has the following system requirements:

64-bit Windows 10 Pro, Enterprise, and Education (1607 Anniversary Update, Build 14393 or later)
Virtualization must be enabled in BIOS and be CPU-SLAT-capable.
4 GB of RAM

If your system does not satisfy these requirements, fear not—all is not lost. You can install Docker Toolbox (https://docs.docker.com/toolbox/overview/), which uses Oracle VirtualBox instead of Hyper-V. It isn't as good, but it is better than nothing.

How to do it

To install Docker for Windows, go through the following steps:

Download Docker for Windows from the Docker Store at https://store.docker.com/editions/community/docker-ce-desktop-windows. You will need to log in in order to download the installer. If you do not have a Docker account, you can create one at https://store.docker.com/signup.
Double-click the installation file that you downloaded from the store. It should be called something like Docker for windows Installer.exe:

Once the installation is complete, it will automatically start up. You will notice a little whale icon in the notification area of your task bar. If you need to change any settings, right-click on the icon and select Settings.

Open up a command-line terminal and check to make sure that the installation is working:

            $ docker container run hello-world

How it works...

This recipe will show you how to install a Docker development environment on your Windows machine.

There's more

Now that you have Docker for Windows installed, check out the following tips to get the most out of your installation:

Docker for Windows supports both Windows and Linux containers. If you want to switch, you just need to right-click on the whale icon, select Switch to Windows containers..., and then click the Switch button:

To switch back, do the same thing, except this time, select Switch to Linux containers....

Docker for Windows will automatically check for new updates and let you know when a new version is available to install. If you agree to upgrade, it will download the new version and install it for you.
Kubernetes doesn't run by default. If you want to turn it on, you will need to right-click on the Docker whale icon in your task bar, then select Settings. Inside the Settings menu, there is a Kubernetes tab. Click on the tab, and then click the Enable Kubernetes option and hit the Apply button:

Docker Cookbook - Second Edition

By : Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare

Docker Cookbook - Second Edition

By: Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare

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