Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Learning Docker
Learning Docker

Learning Docker: Optimize the power of Docker to run your applications quickly and easily

Arrow left icon
Profile Icon Pethuru Raj Profile Icon Jeeva S. Chelladhurai Profile Icon Vinod Singh Profile Icon Jeeva Chelladhurai Profile Icon Vinod kumar Singh Profile Icon Pethuru Raj Chelliah +2 more Show less
Arrow right icon
€41.99
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.8 (5 Ratings)
Paperback Jun 2015 240 pages 1st Edition
eBook
€22.99 €32.99
Paperback
€41.99
Subscription
Free Trial
Renews at €18.99p/m
Arrow left icon
Profile Icon Pethuru Raj Profile Icon Jeeva S. Chelladhurai Profile Icon Vinod Singh Profile Icon Jeeva Chelladhurai Profile Icon Vinod kumar Singh Profile Icon Pethuru Raj Chelliah +2 more Show less
Arrow right icon
€41.99
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.8 (5 Ratings)
Paperback Jun 2015 240 pages 1st Edition
eBook
€22.99 €32.99
Paperback
€41.99
Subscription
Free Trial
Renews at €18.99p/m
eBook
€22.99 €32.99
Paperback
€41.99
Subscription
Free Trial
Renews at €18.99p/m

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Table of content icon View table of contents Preview book icon Preview Book

Learning Docker

Chapter 2. Handling Docker Containers

In the previous chapter, we explained stimulating and sustainable concepts, which showed the Docker's way of crafting futuristic and flexible application-aware containers. We discussed all the relevant details of producing the Docker containers in multiple environments (on-premise as well as off-premise). Using these techniques, you can easily replicate these features in your own environments to get a rewarding experience. Therefore, the next step for us is to understand the container's life cycle aspects in a decisive manner. You will learn the optimal utilization of containers of our own as well as those of other third-party containers in an effective and risk-free way. Containers are to be found, assessed, accessed, and leveraged toward bigger and better applications. There are several tools that have emerged to streamline the handling of containers.

In this chapter, we will dig deeper and describe the critical aspects of container...

Clarifying the Docker terms

To make this chapter substantially simpler to understand and to minimize any kind of ambiguity, the frequently used terms will be explained in the following section.

Docker images and containers

A Docker image is a collection of all of the files that make up a software application. Each change that is made to the original image is stored in a separate layer. To be precise, any Docker image has to originate from a base image according to the various requirements. Additional modules can be attached to the base image for deriving the various images that can exhibit the preferred behavior. Each time you commit to a Docker image you are creating a new layer on the Docker image, but the original image and each pre-existing layer remains unchanged. In other words, images are typically of the read-only type. If they are empowered through the systematic attachment of newer modules, then a fresh image will be created with a new name. The Docker images are turning out to...

Working with Docker images

In the previous chapter, we demonstrated the typical Hello World! example by using a busybox image. Now there is a need for a close observation of the output of the docker pull subcommand, which is a standard command for downloading the Docker images. You would have noticed the presence of the busybox:latest text in the output text, and we will explain this mystery in a detailed manner by bringing in a small twist to the docker pull subcommand by adding the -a option, as shown here:

$ sudo docker pull -a busybox

Surprisingly, you will observe that the Docker engine downloads a few more images with the -a option. You can easily check the images that are available on the Docker host by running the docker images subcommand, which comes in handy, and it reveals more details with respect to :latest and the additional images that are downloaded by running this command. Let us run this command:

$ sudo docker images

You will get the list of images, as follows:

REPOSITORY...

Working with an interactive container

In the first chapter, we ran our first Hello World! container to get a feel of how the containerization technology works. In this section, we are going to run a container in an interactive mode. The docker run subcommand takes an image as an input and launches it as a container. You have to pass the -t and -i flags to the docker run subcommand in order to make the container interactive. The -i flag is the key driver, which makes the container interactive by grabbing the standard input (STDIN) of the container. The -t flag allocates a pseudo-TTY or a pseudo terminal (terminal emulator) and then assigns that to the container.

In the following example, we are going to launch an interactive container by using the ubuntu:14.04 image and /bin/bash as the command:

$ sudo docker run -i -t ubuntu:14.04 /bin/bash

Since the ubuntu image has not been downloaded yet, if we use the docker pull subcommand, then we will get the following message and the run command will...

Summary

In this chapter, we described the knowledge that is gained in the post-implementation phases, primarily regarding the operational aspect of the Docker containers. We started the chapter by clarifying important terms, such as images, containers, registry, and repository, in order to enable you to acquire an unambiguous understanding of the concepts illustrated thereafter. We explained how to search for the images in the Docker repository. We also discussed the operation and handling of the Docker containers, how to track the changes inside the containers, how to control and housekeep the containers. In an easy-to-grasp manner, we will explain the process of the Docker image building in the next chapter.

Left arrow icon Right arrow icon

Description

Docker is a next-generation platform for simplifying application containerization life-cycle. Docker allows you to create a robust and resilient environment in which you can generate portable, composable, scalable, and stable application containers. This book is a step-by-step guide that will walk you through the various features of Docker from Docker software installation to the impenetrable security of containers. The book starts off by elucidating the installation procedure for Docker and a few troubleshooting techniques. You will be introduced to the process of downloading Docker images and running them as containers. You'll learn how to run containers as a service (CaaS) and also discover how to share data among containers. Later on, you'll explore how to establish the link between containers and orchestrate containers using Docker Compose. You will also come across relevant details about application testing inside a container. You will discover how to debug a container using the docker exec command and the nsenter tool. Finally, you will learn how to secure your containers with SELinux and other proven methods.

Who is this book for?

If you are an application developer who wants to learn Docker in order to utilize its features for application deployment, then this book is for you. No prior knowledge of Docker is required.

What you will learn

  • Build a Docker image using Dockerfiles
  • Push and publish images on Docker Hub
  • Run your own private Docker Hub and upload images onto it
  • Create and run services inside a container to deploy your applications with ease
  • Share data between the Docker host and containers
  • Orchestrate multiple containers with Docker Compose
  • Test and debug applications inside a Docker container
  • Secure your Docker containers with SELinux
Estimated delivery fee Deliver to Luxembourg

Premium delivery 7 - 10 business days

€17.95
(Includes tracking information)

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Jun 29, 2015
Length: 240 pages
Edition : 1st
Language : English
ISBN-13 : 9781784397937
Vendor :
Docker
Tools :

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Estimated delivery fee Deliver to Luxembourg

Premium delivery 7 - 10 business days

€17.95
(Includes tracking information)

Product Details

Publication date : Jun 29, 2015
Length: 240 pages
Edition : 1st
Language : English
ISBN-13 : 9781784397937
Vendor :
Docker
Tools :

Packt Subscriptions

See our plans and pricing
Modal Close icon
€18.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
€189.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts
€264.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts

Frequently bought together


Stars icon
Total 78.98
Practical DevOps
€36.99
Learning Docker
€41.99
Total 78.98 Stars icon

Table of Contents

12 Chapters
1. Getting Started with Docker Chevron down icon Chevron up icon
2. Handling Docker Containers Chevron down icon Chevron up icon
3. Building Images Chevron down icon Chevron up icon
4. Publishing Images Chevron down icon Chevron up icon
5. Running Your Private Docker Infrastructure Chevron down icon Chevron up icon
6. Running Services in a Container Chevron down icon Chevron up icon
7. Sharing Data with Containers Chevron down icon Chevron up icon
8. Orchestrating Containers Chevron down icon Chevron up icon
9. Testing with Docker Chevron down icon Chevron up icon
10. Debugging Containers Chevron down icon Chevron up icon
11. Securing Docker Containers Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.8
(5 Ratings)
5 star 40%
4 star 20%
3 star 20%
2 star 20%
1 star 0%
Fran Oct 11, 2016
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Is not bad, direct, no verbose, handy, easy to find all the topics and doubts. Maybe I miss a little some more examples with the docker run command line, because to be honest just appear a couple of times, which is quite annoying, but ok.
Amazon Verified review Amazon
Jascha Casadio Nov 22, 2015
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
At the beginning of November 2015, Docker 1.9 was released and with it multi-host networking was introduced. At the same time, Swarm finally reached a stable state that guaranteed it the label of production-ready. The DockerCon that took place in Barcelona was a success, confirming 2015 has been a great year for that blue whale. The strong impact containers had on the IT world is reflected on the one hand by the many companies investing on it, and on the other by the humongous amount of blog posts and books dedicated to it. In a scenario where some must-have title has already been released (see the bottom for suggested titles), Learning Docker places itself as an introductory text that targets professionals and enthusiasts interested in getting a quick taste of this new technology.Docker is one of those technologies that I am particularly interested in. I have been reading a lot about it, from the official documentation up to blogs, passing through that horde of books that made it up to the Amazon’s shelves. Getting through these 200 pages took me less than two days, mainly because none of the topics covered was new to me. But let’s dive into it!The very first thing that I have noticed about this title is the complete lack of background about what Docker is and, mainly, how it works under the hood. I did not find a single paragraph describing what a union mount is. Union mounts are one of the many key concepts of Docker that are not explained at all. Another concept that is not explained at all is, for example, that of the build context. Mind, the term build context appears all over the book, but the reader is not told what it is. The examples that show how to build an image use it without making it clear that the build context is that lone dot at the very end of the command. Concepts such as name spaces and cgroups are, instead, briefly described at the very end of the book, in the chapter dedicated to security.Another thing I did not appreciate much is the quality of the diagrams used to present the concepts being explained. They are colorful yes, but they could have been definitely better. But diagrams apart, do we really need screenshots to guide us through the signup form of the Docker Hub?The examples presented by the authors are very simple. Throughout the book there is not a single real-world example, nothing that gets beyond the containers’ equivalent of an Hello World! in C. Still, this is a very beginners’ book. This also means that topics such as Kubernetes or Mesos are not touched at all.Tying it all up, a very beginners’ book that I did not like but that someone completely new to the subject could find easy to read to get started. Still, the book can’t keep up with the competition: beginners should prefer passing through each and every page of the official documentation and, optionally, Turnbull’s The Docker Book.Suggested readings:The Docker Book: an user friendly, concise introduction to Docker. While it does not cover many advanced topics, it’s by far the best covering the basics.Docker Hands on: while not helpful to beginners, it offers the reader many advanced topics that can’t be found anywhere else.Docker: Up and Running: a very good text that focuses on advanced topics, mainly containers security.As usual, you can find more reviews on my personal blog: http://books.lostinmalloc.com. Feel free to pass by and share your thoughts!
Amazon Verified review Amazon
Venkatesh Bhat Aug 15, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great reference book for cloud developers, from novice to expert. It covers nearly all features with docker container, followed by a hands-on example.It effectively demonstrates the advantages of running multiple containers within a virtual machine instead of spinning up a virtual machine for every application.The book is well written in simple terms and could be easily used for preparing presentation about docker features.Most recommended for container enthusiasts.
Amazon Verified review Amazon
Carles Aug 13, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Either if you are a Developer or a System Administrator, Docker is about to be a must know and must have in your daily toolbox.When a new technology arises and you want to get savvy on it, you can choose between two roads: diving into hundreds of not so well documented and often outdated on-line tutorials or going for the right way and choose a good book like this that guides and helps you in the process. This book it's written with this kind of scenario in mind, going straight to the point that matters, in order to help and speed up your learning curve.On chapter 1 you'll learn what it's docker and how can you benefit from using it on your daily work. If you are a developer who wants to start using this technology the book guides you through a series of chapters that discuses all you need to know to get confident with it (chapters 1 to 4). In the other hand if you are a system administrator, once you know the basis from the 4th first chapters, you only need to keep walking your way across the chapter 5 to get all you need to know to deploy and maintain you own private Docker infrastructure.From that point both developers and System Administrators still have chapters 6 to 11 to get deeper knowledge of more areas of expertise regarding Docker ecosystem.Summarizing, if you buy this book you'll get a very comprehensive and easy way to master Docker technology in a very short time.
Amazon Verified review Amazon
incognito.programmer Aug 13, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I truly enjoyed this book. Pretty easy reading for the most part. After reading this book I went from 0 to being able to have an educated conversation with others about docker, and dare I say it maybe get a container or two running! (Haven't done it yet, as I haven't had the time).The only knock from me on this book is the part about security. I felt like that chapter could've been better.
Amazon Verified review Amazon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is the delivery time and cost of print book? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela
What is custom duty/charge? Chevron down icon Chevron up icon

Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order? Chevron down icon Chevron up icon

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges? Chevron down icon Chevron up icon

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

  • If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
  • Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.
How can I cancel my order? Chevron down icon Chevron up icon

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact customercare@packt.com with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at customercare@packt.com using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy? Chevron down icon Chevron up icon

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on customercare@packt.com with the order number and issue details as explained below:

  1. If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on customercare@packt.com within one hour of placing the order and we will replace/refund you the item cost.
  2. Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on customercare@packt.com who will be able to resolve this issue for you.
  3. You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
  4. Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
  5. If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
  6. Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on customercare@packt.com within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged? Chevron down icon Chevron up icon

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use? Chevron down icon Chevron up icon

You can pay with the following card types:

  1. Visa Debit
  2. Visa Credit
  3. MasterCard
  4. PayPal
What is the delivery time and cost of print books? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela