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  • Book Overview & Buying The Ultimate Docker Container Book
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The Ultimate Docker Container Book

The Ultimate Docker Container Book - Third Edition

By : Dr. Gabriel N. Schenker
4 (8)
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The Ultimate Docker Container Book

The Ultimate Docker Container Book

4 (8)
By: Dr. Gabriel N. Schenker

Overview of this book

The Ultimate Docker Container Book, 3rd edition enables you to leverage Docker containers for streamlined software development. You’ll uncover Docker fundamentals and how containers improve software supply chain efficiency and enhance security. You’ll start by learning practical skills such as setting up Docker environments, handling stateful components, running and testing code within containers, and managing Docker images. You’ll also explore how to adapt legacy applications for containerization and understand distributed application architecture. Next, you’ll delve into Docker's networking model, software-defined networks for secure applications, and Docker compose for managing multi-service applications along with tools for log analysis and metrics. You’ll further deepen your understanding of popular orchestrators like Kubernetes and Docker swarmkit, exploring their key concepts, and deployment strategies for resilient applications. In the final sections, you’ll gain insights into deploying containerized applications on major cloud platforms, including Azure, AWS, and GCE and discover techniques for production monitoring and troubleshooting. By the end of this book, you’ll be well-equipped to manage and scale containerized applications effectively.
Table of Contents (26 chapters)
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1
Part 1:Introduction
4
Part 2:Containerization Fundamentals
11
Part 3:Orchestration Fundamentals
19
Part 4:Docker, Kubernetes, and the Cloud

Kubernetes secrets

Sometimes, services that we want to run in the Kubernetes cluster have to use confidential data such as passwords, secret API keys, or certificates, to name just a few. We want to make sure that this sensitive information can only ever be seen by the authorized or dedicated service. All other services running in the cluster should not have any access to this data.

For this reason, Kubernetes secrets were introduced. A secret is a key-value pair where the key is the unique name of the secret, and the value is the actual sensitive data. Secrets are stored in etcd. Kubernetes can be configured so that secrets are encrypted at rest – that is, in etcd – and in transit – that is, when the secrets are going over the wire from a master node to the worker nodes that the pods of the service using this secret are running on.

Manually defining secrets

We can create a secret declaratively in the same way as we can create any other object in Kubernetes...

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The Ultimate Docker Container Book
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