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

Kolla introduction


The OpenStack cloud consists of multiple services, and each service interacts with other services. There is no integrated product release for OpenStack. Each project follows a release cycle after every 6 months. This provides a greater flexibility for operators to choose from multiple options and builds a custom deployment solution for them. However, this also brings a complexity of deploying and managing the OpenStack cloud.

There is need for these services to be scalable, upgradable, and readily available. Kolla provides a way for running these services inside containers, and this adds the advantage to the OpenStack cloud being fast, reliable, scalable, and upgradeable. Kolla packs the OpenStack services and their requirements, and sets up all the configuration in the container images.

Kolla uses Ansible to run these container images and deploy or upgrade OpenStack cluster very easily on bare metal or VMs. Kolla containers are configured to store the data on persistent...