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DevOps with Kubernetes

DevOps with Kubernetes

By : Hideto Saito, Hui-Chuan Chloe Lee, Wu
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DevOps with Kubernetes

DevOps with Kubernetes

By: Hideto Saito, Hui-Chuan Chloe Lee, Wu

Overview of this book

Kubernetes has been widely adopted across public clouds and on-premise data centers. As we're living in an era of microservices, knowing how to use and manage Kubernetes is an essential skill for everyone in the IT industry. This book is a guide to everything you need to know about Kubernetes—from simply deploying a container to administrating Kubernetes clusters wisely. You'll learn about DevOps fundamentals, as well as deploying a monolithic application as microservices and using Kubernetes to orchestrate them. You will then gain an insight into the Kubernetes network, extensions, authentication and authorization. With the DevOps spirit in mind, you'll learn how to allocate resources to your application and prepare to scale them efficiently. Knowing the status and activity of the application and clusters is crucial, so we’ll learn about monitoring and logging in Kubernetes. Having an improved ability to observe your services means that you will be able to build a continuous delivery pipeline with confidence. At the end of the book, you'll learn how to run managed Kubernetes services on three top cloud providers: Google Cloud Platform, Amazon Web Services, and Microsoft Azure.
Table of Contents (14 chapters)
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Working with a Dockerfile

When assembling an image, whether using docker commit or export, optimizing the outcome in a managed way is a challenge, let alone integrating it with a CI/CD pipeline. A Dockerfile represents the building task in the form of code, which significantly reduces the difficulty of building tasks for us. In this section, we'll describe how to map Docker commands into a Dockerfile and take a step towards optimizing it.

Writing your first Dockerfile

A Dockerfile consists of a series of text instructions to guide the Docker daemon to form an image, and a Dockerfile must start with the FROM directive. For example, we may have an image built from the following one-liner:

docker commit $(              ...
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