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

Improving your setup for Kubernetes application maintenance

In order to deploy and maintain Spinnaker, we need to be able to talk to the Kubernetes cluster from our local workstation. We also want to be able to use Secure Sockets Layer (SSL)-protected communications to Kubernetes-hosted resources. Let's take this step by step in order to prepare your local workstation and AWS account for more advanced deployments.

Managing the EKS cluster from your local workstation

In order to make it easier to administer the EKS cluster and work with it, you will want to set up your local workstation to talk to the cluster. In the previous chapter, we set up the AWS CLI with an AWS IAM administrator account and then used it to set up an EKS cluster. We will build on that in this chapter to make sure that we can efficiently manage the cluster and the applications in it from our local workstation.

Follow the instructions here on your local workstation to get kubectl and the rest of the...