Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By : Dr. Gabriel N. Schenker
Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By: Dr. Gabriel N. Schenker

Overview of this book

Containers enable you to package an application with all the components it needs, such as libraries and other dependencies, and ship it as one package. Docker containers have revolutionized the software supply chain in both small and large enterprises. Starting with an introduction to Docker fundamentals and setting up an environment to work with it, you’ll delve into concepts such as Docker containers, Docker images, and Docker Compose. As you progress, the book will help you explore deployment, orchestration, networking, and security. Finally, you’ll get to grips with Docker functionalities on public clouds such as Amazon Web Services (AWS), Azure, and Google Cloud Platform (GCP), and learn about Docker Enterprise Edition features. Additionally, you’ll also discover the benefits of increased security with the use of containers. By the end of this Docker book, you’ll be able to build, ship, and run a containerized, highly distributed application on Docker Swarm or Kubernetes, running on-premises or in the cloud.
Table of Contents (25 chapters)
Section 1: Motivation and Getting Started
Section 2: Containerization, from Beginner to Black Belt
Section 3: Orchestration Fundamentals and Docker Swarm
Section 4: Docker, Kubernetes, and the Cloud

Understanding GKE

Google is the inventor of Kubernetes and, to this date, the driving force behind it. You would therefore expect that Google has a compelling offering around hosted Kubernetes. Let's have a peek into it now. To continue, you need to either have an existing account with Google Cloud or create a test account here: Proceed with the following steps:

  1. In the main menu, select Kubernetes Engine. The first time you do that, it will take a few moments until the Kubernetes engine is initialized.
  2. Next, create a new project and name it massai-mara; this may take a moment.
  3. Once this is ready, we can create a cluster by clicking on Create Cluster in the popup.
  4. Select the Your first cluster template on the left-hand side of the form.
  5. Name the cluster animals-cluster, select the region or zone that...