Book Image

Containers in OpenStack

Book Image

Containers in OpenStack

Overview of this book

Containers are one of the most talked about technologies of recent times. They have become increasingly popular as they are changing the way we develop, deploy, and run software applications. OpenStack gets tremendous traction as it is used by many organizations across the globe and as containers gain in popularity and become complex, it’s necessary for OpenStack to provide various infrastructure resources for containers, such as compute, network, and storage. Containers in OpenStack answers the question, how can OpenStack keep ahead of the increasing challenges of container technology? You will start by getting familiar with container and OpenStack basics, so that you understand how the container ecosystem and OpenStack work together. To understand networking, managing application services and deployment tools, the book has dedicated chapters for different OpenStack projects: Magnum, Zun, Kuryr, Murano, and Kolla. Towards the end, you will be introduced to some best practices to secure your containers and COE on OpenStack, with an overview of using each OpenStack projects for different use cases.
Table of Contents (17 chapters)
Title Page
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Deploying a containerized application


In the previous section, you learned how to install Murano with DevStack. Now we will see how to use Murano in order to install an application on OpenStack. As Murano is all about the ease that it provides with the browsable, dynamic UI, we will use the Application Catalog tab in Horizon to run our application.

We will install an NGINX containerized application inside Docker in this example. We will need the following packages for running this application:

  • Docker Interface Library: This library defines a framework for building Docker applications. It provides the data structures and common interfaces used by all the applications and hosting services backed by Docker.
  • Docker Standalone Host: This is a regular Docker host application. All the container applications are run inside a dedicated VM running image built with Docker and murano-agent.
  • Kubernetes Pod: This application provides an infrastructure for running containerized applications with Kubernetes...