Book Image

Docker on Windows

By : Elton Stoneman
Book Image

Docker on Windows

By: Elton Stoneman

Overview of this book

Docker is a platform for running server applications in lightweight units called containers. You can run Docker on Windows Server 2016 and Windows 10, and run your existing apps in containers to get significant improvements in efficiency, security, and portability. This book teaches you all you need to know about Docker on Windows, from 101 to deploying highly-available workloads in production. This book takes you on a Docker journey, starting with the key concepts and simple examples of how to run .NET Framework and .NET Core apps in Windows Docker containers. Then it moves on to more complex examples—using Docker to modernize the architecture and development of traditional ASP.NET and SQL Server apps. The examples show you how to break up monoliths into distributed apps and deploy them to a clustered environment in the cloud, using the exact same artifacts you use to run them locally. To help you move confidently to production, it then explains Docker security, and the management and support options. The book finishes with guidance on getting started with Docker in your own projects, together with some real-world case studies for Docker implementations, from small-scale on-premises apps to very large-scale apps running on Azure.

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Table of Contents (20 chapters)
Title Page
Title Page
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
Getting Started with Docker on Windows
Getting Started with Docker on Windows
Docker and Windows containers
Understanding the key Docker concepts
Running Docker on Windows
Learning Docker with this book
Summary
2
Packaging and Running Applications as Docker Containers
Packaging and Running Applications as Docker Containers
Running a container from an image
Building a Docker image
Packaging your own applications
Working with data in Docker images and containers
Packaging a traditional ASP.NET web app as a Docker image
Summary
3
Developing Dockerized .NET and .NET Core Applications
Developing Dockerized .NET and .NET Core Applications
Building good citizens for Docker
Separating dependencies
Breaking up monolithic applications
Summary
4
Pushing and Pulling Images from Docker Registries
Pushing and Pulling Images from Docker Registries
Understanding registries and repositories
Running a local image registry
Pushing and pulling images with a local registry
Using a commercial registry
Summary
5
Adopting Container-First Solution Design
Adopting Container-First Solution Design
Design goals for NerdDinner
Running a message queue in Docker
Starting a multi-container solution
Adding new features in containers
From monolith to distributed solution
Summary
6
Organizing Distributed Solutions with Docker Compose
Organizing Distributed Solutions with Docker Compose
Defining applications with Docker Compose
Managing applications with Docker Compose
Configuring application environments
Summary
7
Orchestrating Distributed Solutions with Docker Swarm
Orchestrating Distributed Solutions with Docker Swarm
Creating a swarm and managing nodes
Creating and managing services in swarm mode
Deploying stacks to Docker swarm
Running Docker swarm in the cloud
Deploying updates with zero downtime
Summary
8
Administering and Monitoring Dockerized Solutions
Administering and Monitoring Dockerized Solutions
Managing containers with Windows tools
Managing containers with Docker tools
CaaS with Docker EE
Summary
9
Understanding the Security Risks and Benefits of Docker
Understanding the Security Risks and Benefits of Docker
Understanding container security
Securing applications with secure Docker images
Securing the software supply chain with DTR
Understanding security in swarm mode
Summary
10
Powering a Continuous Deployment Pipeline with Docker
Powering a Continuous Deployment Pipeline with Docker
Designing CI/CD with Docker
Running shared development services in Docker
Configuring CI/CD using Jenkins in Docker
Deploying to a remote Docker swarm using Jenkins
Summary
11
Debugging and Instrumenting Application Containers
Debugging and Instrumenting Application Containers
Working with Docker in integrated development environments
Instrumentation in Dockerized applications
The bug fixing workflow in Docker
Summary
12
Containerize What You Know - Guidance for Implementing Docker
Containerize What You Know - Guidance for Implementing Docker
Dockerizing what you know
Case studies for implementing Docker
Summary
Index
Index

Understanding registries and repositories

You download an image from a registry using the docker image pull command. When you run the command, the Docker service connects to the registry, authenticates - if it needs to - and pulls the image down. The pull process downloads all the image layers and stores them in the local image cache on the machine. Containers can only be run from images that are available in the local image cache, so unless they're built locally, they need to be pulled first.

One of the earliest commands you run when you get started with Docker on Windows is something simple, like this example from Chapter 2, Packaging and Running Applications as Docker Containers_SSR:

> docker container run dockeronwindows/ch02-powershell-env

Name             Value
----             -----
ALLUSERSPROFILE  C:\ProgramData
APPDATA          C:\Users\ContainerAdministrator\AppData\Roaming
...

This will work even if you don't have the image in your local cache because Docker can pull it from...

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