Containerizing a Software Application with Docker

By Nigel Brown
Containers are helping to revolutionize the way we deliver software applications. This course will provide you with the requisite skills and knowledge to get you started with packaging your own software applications into containers.
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Course info
Rating
(112)
Level
Intermediate
Updated
Aug 25, 2017
Duration
2h 20m
Table of contents
Course Overview
Course Overview 2m
The Purpose of Docker Images
The Purpose of Docker Images 7m
Committing Containers to Images
Flattening Images 1m Module Overview 2m Exporting and Importing Container Filesystems 3m Understanding the Anatomy of an Image 4m Demonstrating the Effects of Copy-on-write 2m Committing a Container to an Image 6m Relationship Between Layers and Image Size 3m
Building Docker Images
Module Summary 1m Build Cache 4m Making Use of the Build Cache 5m Introducing the Dockerfile 2m Module Overview 2m Providing a Build Context 3m Building Docker Images 4m
Authoring Docker Images with Dockerfiles
Defining Environment Variables 5m Running Commands to Create Content 4m Adding Artifacts to Images 4m Adding Metadata to Images 3m Module Overview 3m Making Use of the CMD and ENTRYPOINT Instructions 4m Specifying a Base Image 3m Defining and Using a HEALTHCHECK Instruction 4m Deferring Instruction Execution 3m Forming the Command to Execute 4m Monitoring the Health of Containers 3m
Authoring a Nginx Docker Image
Making Use of Multi-stage Image Builds 4m Module Summary 2m Planning the Image Content 5m Applying a Multi-stage Build for the Image 6m Authoring a Dockerfile for the Image 14m Module Overview 2m
Tagging and Pushing Docker Images
Module Overview 2m Introducing Docker Registries and Repositories 3m Tagging Docker Images with Names 1m Module Summary 1m Pushing Docker Images to Registries 2m Tagging a Docker Image and Pushing to the Docker Hub Registry 2m Understanding a Fully Qualified Docker Image Name 6m
Description
Course info
Rating
(112)
Level
Intermediate
Updated
Aug 25, 2017
Duration
2h 20m
Description

With the advent of the microservices architecture pattern and enabling technologies such as containers, the way applications are being architected and delivered is changing. Packaging software applications into read-only template images in order to derive immutable application containers, is a key ingredient in this approach, and Docker is at the forefront. In this course, Containerizing a Software Application with Docker, you'll learn how to package a software application into a Docker image. First, you'll explore the nature of Docker images, and their relationship with containers. Next, you'll master how to create Docker images, including authoring a Docker image for a real software application using a Dockerfile. Finally, you'll discover how to name and share Docker images with a wider audience. By the end of this course, you'll have gained the required knowledge of techniques and best practice to get started with containerizing your own software applications.

About the author
Nigel Brown
About the author

Nigel is an IT professional with over 25 years of experience, gained in technical and management roles, including as CEO of a technical consulting organization. He has recently returned to his technical roots, and provide tuition in the domain of microservices and container technologies.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi everyone, my name is Nigel Brown, and welcome to my course, Containerizing a Software Application with Docker. I'm an independent consultant and trainer, with more than a few years of getting my hands dirty. My current obsession is the evolving world of containers and software application delivery. Containers and the Docker platform in particular are helping to revolutionize the way we deliver software applications. Organizations large and small across the globe are adopting a microservices-based container-driven approach to software delivery. In this course using best practice, you're going to learn how to package a software application into a container template, the Docker image. Some of the major topics that we'll cover include the anatomy of a Docker image, and how it relates to image size, techniques for building Docker images, including multistage builds, authoring an image for a software application using the declarative Docker file, and naming and sharing Docker images for wider consumption by users or automation tools. We can't turn you into a ninja Docker author over night, but when you're done with the course, you'll have sufficient knowledge and understanding to get started with containerizing your own software applications with Docker. Ideally before beginning the course, you should be familiar with the basic concepts of container virtualization. If you are just starting on the journey from traditional application packaging to a more modern distributed approach, then join me to discover how to containerize a software application with Docker.

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