Docker Containers, Third Edition

Docker Containers, Third Edition

by Christopher Negus
Released October 2017
Publisher(s): Pearson
ISBN: 0134862953

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Video description

4+ Hours of Video Instruction

Docker Containers LiveLessons takes you through your first experiences understanding, running, building, and managing Docker container, and then leads you into container orchestration with OpenShift and Kubernetes.

Overview

With cloud computing, applications need to move around efficiently and run almost anywhere. In this video, learn how you can create containerized applications with Docker that are lightweight and portable. First, Chris Negus shows you how to begin using Docker on Ubuntu, Red Hat Enterprise Linux, or Fedora systems (with options of Windows or Mac OS X). Then he shows you how to pull and push Docker container images from and to Docker registries. The next few lessons get you started running containers and investigating how they work. After that, you learn how to build your own Docker images. The video then examines orchestration tools, such as Kubernetes and Cockpit, and development tools, such as OpenShift, for deploying and managing containers. Finally, it provides some tips for developing your own Docker containers.

About the Instructor

Chris Negus has authored or co-authored dozens of books on Linux and UNIX, including the Red Hat Linux Bible (all editions), Linux Troubleshooting Bible, Linux Bible (now in its 9th edition), Linux Toolbox series, Linux Toys, Linux Toys II, and mostly recently, Docker Containers. Currently, Chris works for Red Hat, Inc., where he is a Red Hat Certified Architect (RHCA), Red Hat Certified Instructor and Examiner, and Principal Technical Writer. Early in his career, Chris worked for eight years with the organization at AT&T that developed the UNIX operating system.

Skill Level

  • Beginner to advanced
Learn How To
  • Run, stop, and restart Docker containers
  • Install Docker on standard Linux or specialized container operating systems
  • Set up a private OpenShift installation on Windows, Mac, or Linux with minishift
  • Set up a private Docker Registry or use OpenShift Registry
  • Create, run, and investigate Docker images and containers
  • Pull and push containers between local systems and Docker registries
  • Integrate Docker containers with host networking and storage
  • Orchestrate multiple containers into complex applications with Kubernetes
  • Build a Docker container to simplify application deployment
  • Launch a containerized application in OpenShift
  • Employ best practices when developing containerized applications
  • Create interesting and powerful containers
  • Investigate Docker supporting technology that is on the horizon
Who Should Take This Course
  • System administrators who need to create, deploy, and manage Docker containers
  • Application developers who want to understand which applications are most appropriate for containerization and what are best practices for adapting their applications to containers
Course Requirements
  • A basic understanding of running commands in Linux
  • Familiarity with Linux concepts such as networking, software repos, and storage
  • Familiarity with concepts related to deploying applications
Lesson Descriptions

Lesson 1: Welcome to Docker Containers and Beyond
In Lesson 1, you learn the benefits of running applications in Docker containers. You also learn where Docker came from, the components that make up Docker, and other initiatives that have grown up around the Docker project.

Lesson 2: Getting Docker Software
In Lesson 2, you learn how to get Docker software and start it on the operating system that you choose. It includes procedures for installing Docker on Fedora, Ubuntu, Red Hat Enterprise Linux distributions, as well as the lightweight Project Atomic operating system. It also describes how to install an OpenShift cluster on your Linux, Windows, or Mac system, to have a container development/deployment setup on your laptop or desktop.

Lesson 3: Using Docker Registries
In Lesson 3, you start using Docker registries. Docker registries are places where container images are stored. There is a public Docker registry available (referred to as the Docker Index or Hub), but you can also set up private registries to store your own containers. You can also explore the private container registry that comes with OpenShift.

Lesson 4: Starting Up Containers
In Lesson 4, you start running containers on your Linux system. Once a container is running, you can explore your container in different ways, and then start and stop the containers as needed.

Lesson 5: Making Docker Images from Containers
In Lesson 5, you take containers you have made by running commands on your local system and save them as images you can transport. Once you have transported your new Docker image to another system running Docker, you can load the image and run it on that system. Or you can push your new image to the Docker Hub or to a private registry.

Lesson 6: Keeping Your Docker Build System Healthy
In Lesson 6, you learn ways to query the state of your Docker system and ways to keep it healthy, such as removing containers and images left on your system that you no longer need.

Lesson 7: Building Docker Images
In Lesson 7, you learn how to build a Docker container image that includes everything needed to run an application.

Lesson 8: Tips for Building Containers
In Lesson 8, you learn some simple rules to get better results from the containers you run, build, and manage. In particular, working with software repositories, networking, and storage are given extra attention in this lesson. How to choose a useful base image or builder image as the foundation of your images is also covered.

Lesson 9: Orchestrating with Kubernetes and OpenShift
Lesson 9 introduces you to the concept of container orchestration—how to manage multiple containers in pods using replication controllers and services in Kubernetes. This includes a demonstration of an all-in-one Kubernetes master and node as well as an example of how to investigate a Kubernetes cluster. After that, you explore the Cockpit Web-based interface for managing containers.

Lesson 10: Developing Containerized Applications
Lesson 10 describes applications you should keep an eye on that are currently in development for deploying containerized applications.

Lesson 11: Digging into Advanced Networking and Storage
Lesson 11 starts with descriptions for setting up default networking for your Docker systems, as well as how to change networking for individual containers. After that, it tells how containers can use storage from the host computer by mounting volumes and how to share storage volumes among containers.

Lesson 12: Running Super Privileged Containers
In Lesson 12, you learn about how Docker relies on the Linux Container feature (LXC) to separate containers from the Linux host. Building on that knowledge, you learn how to open containers to individual name spaces on the host or open containers completely to the host using what are referred to as super privileged containers.

Lesson 13: Going Further with Docker
In Lesson 13, you learn advanced security techniques and examine interesting Dockerfile files to see how others build containers. Next, you see commands such as atomic, runc, buildah, and skopeo to work with containers without the Docker service.

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Table of contents

  1. Introduction
    1. Docker Containers: Introduction
  2. Lesson 1: Welcome to Docker Containers and Beyond
    1. Learning objectives
    2. 1.1 Use containers to deliver applications efficiently
    3. 1.2 Understand how containers change applications
    4. 1.3 Explain how containers are used across an enterprise
  3. Lesson 2: Getting Docker Software
    1. Learning objectives
    2. 2.1 Choose a Docker environment
    3. 2.2 Set up Docker in Fedora
    4. 2.3 Set up Docker in Ubuntu
    5. 2.4 Set up Docker in Red Hat Enterprise Linux
    6. 2.5 Set up OpenShift on Linux, Windows, or Mac
    7. 2.6 Set up a Fedora Atomic host
  4. Lesson 3: Using Docker Registries
    1. Learning objectives
    2. 3.1 Use the public Docker registry
    3. 3.2 Create private Docker registries
    4. 3.3 Push and pull Docker images
    5. 3.4 Use an OpenShift registry
  5. Lesson 4: Starting Up Containers
    1. Learning objectives
    2. 4.1 Launch an existing container
    3. 4.2 Check out a running container
    4. 4.3 Manipulate containers (run, stop and start)
  6. Lesson 5: Making Docker Images from Containers
    1. Learning objectives
    2. 5.1 Save containers to images
    3. 5.2 Tag an image
    4. 5.3 Commit an image to a registry
  7. Lesson 6: Keeping Your Docker Build System Healthy
    1. Learning objectives
    2. 6.1 Monitor your Docker system
    3. 6.2 Remove containers and images
  8. Lesson 7: Building Docker Images
    1. Learning objectives
    2. 7.1 Understand Dockerfile files
    3. 7.2 Choose what goes into a Dockerfile file
    4. 7.3 Use Docker build to build container images
  9. Lesson 8: Tips for Building Containers
    1. Learning objectives
    2. 8.1 Employ general rules for building containers
    3. 8.2 Configure software repositories, networking, logging and storage
    4. 8.3 Choose base container images
  10. Lesson 9: Orchestrating with Kubernetes and OpenShift
    1. Learning objectives
    2. 9.1 Understand Kubernetes
    3. 9.2 Start an application with OpenShift
    4. 9.3 Manage containers with Cockpit
  11. Lesson 10: Developing Containerized Applications
    1. Learning objectives
    2. 10.1 Choose container development tools
    3. 10.2 Get involved with Docker development
    4. 10.3 Use techniques for building containers
  12. Lesson 11: Digging into Advanced Networking and Storage
    1. Learning objectives
    2. 11.1 Choose container networking
    3. 11.2 Add storage to containers
  13. Lesson 12: Running Super Privileged Containers
    1. Learning objectives
    2. 12.1 Understand Linux namespaces
    3. 12.2 Run super privileged containers
  14. Lesson 13: Going Beyond Docker Containers
    1. Learning objectives
    2. 13.1 Explore advanced container security
    3. 13.2 Examine interesting Dockerfile files
    4. 13.3 Run containers without Docker
    5. 13.4 Follow container features on the horizon
  15. Summary
    1. Docker Containers: Summary

Product information

  • Title: Docker Containers, Third Edition
  • Author(s): Christopher Negus
  • Release date: October 2017
  • Publisher(s): Pearson
  • ISBN: 0134862953