Book Image

Docker for Developers

By : Richard Bullington-McGuire, Andrew K. Dennis, Michael Schwartz
2 (1)
Book Image

Docker for Developers

2 (1)
By: Richard Bullington-McGuire, Andrew K. Dennis, Michael Schwartz

Overview of this book

Docker is the de facto standard for containerizing apps, and with an increasing number of software projects migrating to containers, it is crucial for engineers and DevOps teams to understand how to build, deploy, and secure Docker environments effectively. Docker for Developers will help you understand Docker containers from scratch while taking you through best practices and showing you how to address security concerns. Starting with an introduction to Docker, you’ll learn how to use containers and VirtualBox for development. You’ll explore how containers work and develop projects within them after you’ve explored different ways to deploy and run containers. The book will also show you how to use Docker containers in production in both single-host set-ups and in clusters and deploy them using Jenkins, Kubernetes, and Spinnaker. As you advance, you’ll get to grips with monitoring, securing, and scaling Docker using tools such as Prometheus and Grafana. Later, you’ll be able to deploy Docker containers to a variety of environments, including the cloud-native Amazon Elastic Kubernetes Service (Amazon EKS), before finally delving into Docker security concepts and best practices. By the end of the Docker book, you’ll be able to not only work in a container-driven environment confidently but also use Docker for both new and existing projects.
Table of Contents (21 chapters)
1
Section 1: An Introduction to Docker – Containers and Local Development
6
Section 2: Running Docker in Production
14
Section 3: Docker Security – Securing Your Containers

Deploying ShipIt Clicker with a simple deployment strategy in Spinnaker

Let's get our hands dirty with Spinnaker by deploying our ShipIt Clicker application. For this, we will be using Helm Charts, and we will use the version of the application in the chapter9 directory.

Spinnaker requires Helm archive files to operate

In order to simplify the deployment of the Helm Charts, we have created an archive of the chapter9/shipitclicker Helm Chart directory in chapter9/helm.tar.gz, as Spinnaker expects an archive in this format as one of its inputs. We could instead output this archive to an AWS S3 object, or even as a GitHub release artifact, but that is beyond the scope of this chapter. If you change the Helm Charts in the chapter9/shipitclicker directory, be sure to update the helm.tar.gz archive and commit and push it before building with Spinnaker.

Adding a Spinnaker application

Go to your Spinnaker installation in the web browser at https://spinnaker.eks.example.com...