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- Herausgeber: Packt Publishing
- Kategorie: Wissenschaft und neue Technologien
- Sprache: Englisch
A practical book which will help the readers understand how the container ecosystem and OpenStack work together.
About This Book
- Gets you acquainted with containerization in private cloud
- Learn to effectively manage and secure your containers in OpenStack
- Practical use cases on container deployment and management using OpenStack components
Who This Book Is For
This book is targeted towards cloud engineers, system administrators, or anyone from the production team who works on OpenStack cloud. This book act as an end to end guide for anyone who wants to start using the concept of containerization on private cloud. Some basic knowledge of Docker and Kubernetes will help.
What You Will Learn
- Understand the role of containers in the OpenStack ecosystem
- Learn about containers and different types of container runtimes tools.
- Understand containerization in OpenStack with respect to the deployment framework, platform services, application deployment, and security
- Get skilled in using OpenStack to run your applications inside containers
- Explore the best practices of using containers in OpenStack.
In Detail
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.
Style and approach
An end to end guide for anyone who wants to start using the concept of containerization on private cloud.
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Seitenzahl: 151
Veröffentlichungsjahr: 2017
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Containers in OpenStack
Copyright © 2017 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
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Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: December 2017
Production reference: 1191217
ISBN 978-1-78839-438-3
www.packtpub.com
Credits
Authors
Pradeep Kumar Singh
Madhuri Kumari
Copy Editor
Safis Editing
Reviewers
Felipe Monteiro
Venkatesh Loganathan
Vinoth Kumar Selvaraj
Project Coordinator
Shweta H Birwatkar
Commissioning Editor
Gebin George
Proofreader
Safis Editing
Acquisition Editor
Namrata Patil
Indexer
Francy Puthiry
Content Development Editor
Amrita Noronha
Graphics
Tania Dutta
Technical Editor
Akash Patel
Production Coordinator
Shantanu Zagade
About the Authors
Pradeep Kumar Singh is an OpenStack developer. He has expertise in the domains of containers, storage, and web application development. Pradeep is a core reviewer for OpenStack Zun. Pradeep also loves machine learning and the infrastructure part of it. In his free time, he plays with his Raspberry Pi 3 clusters, and also loves to write code in different programming languages.
Madhuri Kumari is an OpenStack developer. She has expertise in the domains of cloud computing, containers, and virtualization. She has been working on OpenStack since December 2014 and is a core reviewer for two OpenStack projects, Magnum and Zun. Besides this, she has also worked on the Ironic, Swift, Murano, and Valence. She is an active speaker at OpenStack summits, LinuxCon, and local meetups. She was also nominated for the RedHat Women in Open Source Award, 2017.
About the Reviewers
Felipe Monteiro currently works for AT&T as a software developer, predominantly focusing on developing AT&T’s under-cloud platform (UCP) for orchestrating OpenStack on Kubernetes deployment. He is currently the lead developer for Deckhand and Armada, two of the core microservices that comprise UCP. He also works on OpenStack, particularly on Murano, OpenStack’s application catalog, and Patrole, a Tempest plugin responsible for validating the correct implementation of RBAC and API compliance with RBAC. He was the Murano PTL during the Pike release cycle and is currently a core reviewer for both Murano and Patrole.
Venkatesh Loganathan is a senior DevOps engineer at CD Cloudenablers Pvt. Ltd., a product-based cloud technology start-up in Chennai, India. He has spent an equal amount of time focusing on release engineering in the agile methodology, automating daily activities through configuration management tools, and maintaining the site at high availability.
Vinoth Kumar Selvaraj is a passionate computer science engineer from Tamil Nadu, India. He works as a DevOps engineer at Cloudenablers Inc.
As an active moderator on Ask OpenStack, he consistently answers and provides solutions for questions posted on the Ask OpenStack forum. Based on karma points, he was ranked 20 out of 20,000 members in the Ask OpenStack forum. He has also written many OpenStack-related articles for http://superuser.openstack.org/ and hosts a dedicated website for his works on OpenStack at http://www.hellovinoth.com/.
You can visit his LinkedIn page at https://www.linkedin.com/in/vinothkumarselvaraj/ and tweet him @vinoth6664.
Vinoth has also authored a book entitled OpenStack Bootcamp for Packt.
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Table of Contents
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Downloading the example code
Errata
Piracy
Questions
Working with Containers
The historical context of virtualization
Introduction to containers
Container components
Types of containers
Machine containers
Application containers
Types of container runtime tools
Docker
Rocket
LXD
OpenVZ
Windows Server containers
Hyper-V containers
Clear container
Installation of Docker
Docker hands-on
Working with Docker images
Listing images
Getting new images
Searching Docker images
Deleting images
Working with Docker containers
Creating containers
Listing containers
Checking container's logs
Starting containers
Deleting containers
Summary
Working with Container Orchestration Engines
Introduction to COE
Docker Swarm
Docker Swarm components
Node
Manager node
Worker node
Tasks
Services
Discovery service
Scheduler
Swarm mode
Apache Mesos
Apache Mesos and its components
Master
Slaves
Frameworks
Offer
Tasks
Zookeeper
Kubernetes
Kubernetes architecture
External request
Master node
kube-apiserver
etcd
kube-controller-manager
kube-scheduler
Worker nodes
kubelet
kube-proxy
Container runtime
supervisord
fluentd
Concepts in Kubernetes
Pod
Replica sets and replication controllers
Deployments
Secrets
Labels and selectors
Services
Volumes
Kubernetes installation
Kubernetes hands-on
Summary
OpenStack Architecture
Introduction to OpenStack
OpenStack architecture
Introduction to KeyStone, the OpenStack identity service
Introduction to Nova, the OpenStack compute service
Introduction to Neutron, the OpenStack network service
Introduction to Cinder, the OpenStack block storage service
Introduction to Glance, the OpenStack image service
Introduction to Swift, the OpenStack object store
DevStack installation
Creating a KeyStone user
Assign role to the user
Creating a VM using Nova
Attach volume to VM
Uploading an image to Swift
Summary
Containerization in OpenStack
The need for containers in OpenStack
Efforts within the OpenStack community to support containers
Nova
Heat
Magnum
Zun
Kuryr
Kolla
Murano
Fuxi
OpenStack-Helm
Summary
Magnum – COE Management in OpenStack
Magnum introduction
Concepts
Cluster template
Cluster
Cluster driver
Heat Stack Template
Template definition
Certificate
Service
Stats
Quotas
Key features
External load balancer for Kubernetes
Transport Layer Security
Scaling
Storage
Ephemeral storage
Persistent storage
Notifications
Container monitoring
Components
Magnum API
Magnum conductor
Walk-through
Magnum DevStack installation
Managing COEs
Summary
Zun – Container Management in OpenStack
Introduction to Zun
Concepts
Containers
Images
Services
Hosts
Capsules
Container drivers
Image drivers
Network drivers
Key features
Cinder integration
Container composition
Kuryr networking
Container sandbox
CPU sets
Components
zun-api
Zun scheduler
zun-compute
Zun WebSocket proxy
Walk-through
Zun DevStack installation
Managing containers
Summary
Kuryr – Container Plugin for OpenStack Networking
Introducing Kuryr
Kuryr architecture
Mapping the Docker libnetwork to the neutron API
Providing the generic VIF-Binding infrastructure
Providing containerized images of neutron plugins
Nesting VMs and Magnum use cases
Installation of Kuryr
Walk-through
Summary
Murano – Containerized Application Deployment on OpenStack
Introduction to Murano
Murano concepts
Environment
Package
Session
The environment template
Deployments
Bundle
Categories
Key features
Production-ready applications
Application catalog UI
Distributing workloads
Application development
Murano repository
Cinder volumes
Barbican support
HOT packages
Murano components
The Murano API
The Murano engine
The Murano agent
The Murano dashboard
Walk-through
Murano DevStack installation
Deploying a containerized application
Summary
Kolla – Containerized Deployment of OpenStack
Kolla introduction
Key features
Highly available deployment
Ceph support
Image building
Docker hub support
Local registry support
Multiple build sources
Dockerfile customization
Architecture
Deploying containerized OpenStack services
Setting up a local registry
Automatic host bootstrap
Building images
Deploying images
Summary
Best Practices for Containers and OpenStack
The advantages of different OpenStack projects
Best practices for securing and deploying containers
Summary
Preface
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 popularity and become more complex, it's necessary for OpenStack to provide various infrastructure resources for containers such as compute, network, and storage.
Containerization in OpenStack aims at answering the question, how can OpenStack keep pace with the increasing challenges of container technology? You will start with getting familiar with container and OpenStack basics so that you understand how the container ecosystem and OpenStack work together. To help you get better at compute, networking, managing application services and deployment tools, the book has dedicated chapters for different OpenStack projects: Magnum, Zun, Kuryr, Murano, and Kolla.
Toward 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 project for different use cases.
What this book covers
Chapter 1, Working with Containers, starts with discussing the history of virtualization and then talks about the evolution of containers. After this, it focuses on explaining containers, their types, and the different container runtime tools. It then dives into Docker and its installation, and also shows how to use Docker to perform operations on containers.
Chapter 2, Working with Container Orchestration Engines, starts with an introduction to Container Orchestration Engines and then it introduces different COEs available today. It explains the installation of Kubernetes and how to use it to manage containers in an example application.
Chapter 3, OpenStack Architecture, starts with an introduction to OpenStack and its architecture. Then it briefly explains OpenStack's core components and their architecture.
Chapter 4, Containerization in OpenStack, explains the need for containerization in OpenStack, and also talks about different OpenStack container-related projects.
Chapter 5, Magnum – COE Management in OpenStack, explains the Magnum project of OpenStack in detail. It talks about the concepts, components, and architecture of Magnum. Then, it demonstrates Magnum installation with DevStack and it's hands-on.
Chapter 6, Zun – Container Management in OpenStack, explains the Zun project of OpenStack in detail. It talks about the concepts, components, architecture of Zun. Then, it demonstrates Zun installation with DevStack and it's hands-on.
Chapter 7, Kuryr – Container Plugin for OpenStack Networking, explains the Kuryr project of OpenStack in detail. It talks about the concepts, components, and architecture of Kuryr. Then, it demonstrates Kuryr installation with DevStack and it's hands-on.
Chapter 8, Murano – Containerized Application Deployment on OpenStack, explains the Murano project of OpenStack in detail. It talks about the concepts, components, and architecture of Murano. Then, it demonstrates Murano installation with DevStack and it's hands-on.
Chapter 9, Kolla – Containerized Deployment of OpenStack, explains the Kolla project of OpenStack in detail. It talks about the sub-projects, key features and architecture of Kolla. Then, it explains the deployment process for OpenStack ecosystem using the Kolla project.
Chapter 10, Best Practices for Containers and OpenStack, summarizes different container-related OpenStack projects and their advantages. Then, it also explains the security issues with containers and the best practices to resolve them.
What you need for this book
This book assumes a basic level of understanding of cloud computing, the Linux operating system and containers. The book will guide you through the installation of any tools that are required.
You can use any tool for the test environment, such as Vagrant, Oracle's VirtualBox, or a VMware workstation.
In this book, the following software list is required:
Operating system: Ubuntu 16.04
OpenStack: Pike release or newer
VirtualBox 4.5 or newer
Vagrant 1.7 or newer
To run the OpenStack installation in a development environment, the following minimum hardware resources are required:
A host machine with CPU hardware virtualization support
8 core CPU
12 GB RAM
60 GB free disk space
Internet connectivity is required to download the necessary packages for OpenStack and other tools.
Who this book is for
The book is targeted toward cloud engineers, system administrators, or anyone from the production team who works on the OpenStack cloud. This book acts as an end-to-end guide for anyone who wants to start using the concept of containerization in OpenStack.
Conventions
In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The zun-compute service is the main component of the Zun system."
Any command-line input or output is written as follows:
$ sudo mkdir -p /opt/stack
New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "You can see in the following screenshot that we are given two options to choose for our container host: Kubernetes Pod and Docker Standalone Host."
Reader feedback
Feedback from our readers is always welcome. Let us know what you think about this book-what you liked or disliked. Reader feedback is important for us as it helps us develop titles that you will really get the most out of. To send us general feedback, simply e-mail [email protected], and mention the book's title in the subject of your message. If there is a topic that you have expertise in and you are interested in either writing or contributing to a book, see our author guide at www.packtpub.com/authors.
Customer support
Now that you are the proud owner of a Packt book, we have a number of things to help you to get the most from your purchase.
Downloading the example code
You can download the example code files for this book from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.
You can download the code files by following these steps:
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The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Containers-in-OpenStack. We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!
