Book Image

Mastering Redis

By : Jeremy Nelson
Book Image

Mastering Redis

By: Jeremy Nelson

Overview of this book

Redis is the most popular, open-source, key value data structure server that provides a wide range of capabilities on which multiple platforms can be be built. Its fast and flexible data structures give your existing applications an edge in the development environment. This book is a practical guide which aims to help you deep dive into the world of Redis data structure to exploit its excellent features. We start our journey by understanding the need of Redis in brief, followed by an explanation of Advanced key management. Next, you will learn about design patterns, best practices for using Redis in DevOps environment and Docker containerization paradigm in detail. After this, you will understand the concept of scaling with Redis cluster and Redis Sentinel , followed by a through explanation of incorporating Redis with NoSQL technologies such as Elasticsearch and MongoDB. At the end of this section, you will be able to develop competent applications using these technologies. You will then explore the message queuing and task management features of Redis and will be able to implement them in your applications. Finally, you will learn how Redis can be used to build real-time data analytic dashboards, for different disparate data streams.
Table of Contents (18 chapters)
Mastering Redis
About the Author
About the Reviewers

Layers in Docker images

While being able to run your application within a Docker container is, in of itself, a great feature, it is only in combination with a Docker image—a template for container creation—that the advantages of Docker start to become apparent. Docker images are constructed by adding new file system layers on top of preexisting file system layers. Each layer is made up of a static feature, such as the executables, libraries, and other configuration for an application, program, or utility. Upper level layers file paths that match preexisting files in lower layers mask the file from executing code.

For example, say you start with the existing official Redis layer, adding a new layer with its own redis.conf configuration file will mask any existing redis.conf file that is located at the same filepath or location:

Layers of Docker Images and Containers

A Docker Base image is an image that does not have a parent and are typically made up of the operating system, such as Ubuntu...