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    OpenStack Orchestration
    OpenStack Orchestration
    OpenStack Orchestration
    Ebook315 pages1 hour

    OpenStack Orchestration

    By Siddiqui Adnan Ahmed

    ()

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    About this ebook

    This book is focused on setting up and using one of the most important services in OpenStack orchestration, Heat. First, the book introduces you to the orchestration service for OpenStack to help you understand the uses of the templating mechanism, complex control groups of cloud resources, and huge-potential and multiple-use cases. We then move on to the topology and orchestration specification for cloud applications and standards, before introducing the most popular IaaS cloud framework, Heat. You will get to grips with the standards used in Heat, overview and roadmap, architecture and CLI, heat API, heat engine, CloudWatch API, scaling principles, JeOS and installation and configuration of Heat. We wrap up by giving you some insights into troubleshooting for OpenStack.
    With easy-to-follow, step-by-step instructions and supporting images, you will be able to manage OpenStack operations by implementing the orchestration services of Heat.

    LanguageEnglish
    PublisherPackt Publishing
    Release dateOct 27, 2015
    ISBN9781785282966
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      Book preview

      OpenStack Orchestration - Siddiqui Adnan Ahmed

      (missing alt)

      Table of Contents

      OpenStack Orchestration

      Credits

      About the Author

      About the Reviewers

      www.PacktPub.com

      Support files, eBooks, discount offers, and more

      Why subscribe?

      Free access for Packt account holders

      Preface

      What this book covers

      What you need for this book

      Who this book is for

      Conventions

      Reader feedback

      Customer support

      Errata

      Piracy

      Questions

      1. Getting Started with the Orchestration Service for OpenStack

      Introduction to the OpenStack architecture

      Horizon

      Nova

      Neutron

      Swift

      Cinder

      Keystone

      Glance

      Ceilometer

      Heat

      Trove

      The Orchestration service for OpenStack

      The Heat workflow

      The Orchestration authorization model

      Password authorization

      Keystone trusts authorization

      Trusts authorization execution

      The authorization model configuration

      Stack domain users

      Configuring stack domain users

      Creating a stack

      Summary

      2. The OpenStack Architecture

      Components of OpenStack

      OpenStack node types

      The OpenStack logical architecture

      TOSCA – Heat ideas and standards

      Heat components

      The Heat CLI

      heat-api

      heat-api-cfn

      heat-engine

      Heat Orchestration Template (HOT) specification

      The example architecture 1 (based on the Nova network)

      Node hardware specifications

      An overview

      A detailed description

      The example architecture 2 (based on Neutron)

      Network layout for OpenStack networking

      The internal network

      The public network

      The VM traffic network (private network)

      The physical connectivity of nodes

      Individual node connectivity diagrams

      Controller nodes

      Compute nodes

      Network nodes

      Storage nodes

      Summary

      3. Stack Group of Connected Cloud Resources

      Heat basics

      Stacks

      Templates

      CFN

      Heat Orchestration Template (HOT)

      The HOT template example

      Heat_template_version

      Description

      Resources

      Properties or parameters

      Resource types

      Autoscaling

      Vertical scaling versus horizontal scaling

      Vertical scaling

      Horizontal scaling

      Autoscaling with Heat

      How autoscaling works in Heat

      High availability

      Stateless versus stateful services

      Active/Passive

      Active/Active

      HA mechanisms for different levels

      Horizontal scaling and databases

      The approach – the metadata server and cfn-hup

      cfn-hup

      The metadata server

      Benefits

      Summary

      4. Installation and Configuration of the Orchestration Service

      Orchestration module concepts

      Installing and configuring Orchestration

      Installing and configuring the Orchestration components

      Finalize installation

      Verify operations

      OpenStack Heat installation

      Creating a stack with Heat

      Creating an advanced template for Heat

      Creating a stack

      Verifying a stack

      Summary

      5. Working with Heat

      Standards used in Heat

      Amazon CloudFormation

      Simplified infrastructure management

      A quick replication of services

      Track changes and control

      The TOSCA standard

      Heat overview and roadmap

      The Heat architecture and CLI

      The Heat command-line reference

      Usage

      Getting help

      Heat subcommands

      Heat optional arguments

      The Heat basic workflow

      The Heat CLI tools

      The Heat API

      The Heat CloudWatch API

      Message queue (MQ)

      The Heat engine

      Heat autoscaling principles

      JeOS

      Summary

      6. Managing Heat

      Heat and DevStack

      The event stack list

      Get the stack list

      Create a stack

      Show stack details

      Show resource details

      Update a stack

      Delete a stack

      The template structure

      The CloudFormation template

      The AWS template format version

      Description

      Metadata

      Parameters

      Mappings

      Conditions

      Resources

      Outputs

      Summary

      7. Troubleshooting Heat

      VM instances cannot connect to the external network or the Internet

      Error received during installation – Unable to write random state

      Timeout error received while running jeos_create during customization

      A template running with incorrect parameters cannot be deleted

      Error – internal error process exited while connecting to monitor

      It takes too long to create a JeOS

      Error – Quota exceeded: code=InstanceLimitExceeded (HTTP 413)

      Error – Response from Keystone does not contain a Heat endpoint

      Error – Internal Server Error

      Error – Provided KeyName is not registered with Nova

      A template is not working after editing

      Instances shutdown immediately after creation

      Yum update fails with dependency problems related to the oz package

      Failed to start qpidd

      OpenStack daemons can't connect to qpidd

      Ubuntu VMs cannot receive DHCP assignments from hosts running CentOS/Fedora

      Debugging OpenStack Heat

      Heat list returns 503 error

      Heat list hangs up

      Troubleshooting common OpenStack errors

      Error – internal error Failed to create mDNS client: Daemon not running

      The solution

      Error – Failed to add image

      Keystone ValueError – you need to pass either an existing engine or a database uri

      Error – No handlers could be found for logger keystoneclient.client

      Error – Access denied for user 'keystone'@'openstack1' (using password: YES)

      Error – Connect error/bad request to Auth service at URL %(url)s

      Summary

      Index

      OpenStack Orchestration

      OpenStack Orchestration

      Copyright © 2015 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.

      Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

      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: October 2015

      Production reference: 1201015

      Published by Packt Publishing Ltd.

      Livery Place

      35 Livery Street

      Birmingham B3 2PB, UK.

      ISBN 978-1-78355-165-1

      www.packtpub.com

      Credits

      Author

      Adnan Ahmed Siddiqui

      Reviewers

      Mostafa A. Hamid

      Maksym Lobur

      Sreedhar Varma

      Commissioning Editor

      Neil Alexander

      Acquisition Editor

      Kevin Colaco

      Content Development Editor

      Dharmesh Parmar

      Technical Editor

      Siddhi Rane

      Copy Editor

      Janbal Dharmaraj

      Project Coordinator

      Harshal Ved

      Proofreader

      Safis Editing

      Indexer

      Priya Sane

      Graphics

      Disha Haria

      Abhinash Sahu

      Production Coordinator

      Shantanu N. Zagade

      Cover Work

      Shantanu N. Zagade

      About the Author

      Adnan Ahmed Siddiqui is an innovative and results-driven leader with over 8 years of success. He is focused on achieving exceptional results in highly competitive environments that demand continuous improvements. He has a proven ability to architect, design, develop, and deliver cost-effective, high-performance technology solutions to meet challenging business demands. Adnan is competent in Information Lifecycle Management (ILM) and Service Delivery Lifecycle (SDLC), covering business case development, team and project management, delivery, implementation, and support. He provides consultancy and advising to various organizations in the USA and Middle East regions in OpenStack, AWS, Citrix, and Microsoft solutions.

      He is a founder and CEO of CloudDall INC (www.clouddall.com), a successful company that helps organizations worldwide rapidly migrate their IT infrastructure to the cloud, and IKT Technologies (www.iktechnologies.com). Their business provisioning includes public clouds, hybrid clouds, DaaS (Desktop as a Service), backup and archive, disaster recovery, and customized storage services. CloudDall provides subscription-based services tailored to fit a range of business models resulting in reduced cost, enhanced security, control, and productivity.

      In addition to these achievements, he holds a Computer Engineer degree and these certifications: Red Hat Certified Engineer (RHCSA), AWS Certified Solution Architect, Citrix Certified Enterprise Engineer for Virtualization (CCEE), Microsoft Certified Technology Specialist (MCTS), Microsoft Certified Information Technology Professional (MCITP), and Microsoft Certified System Engineer (MCSE). He has also been a Microsoft Certified Trainer (MCT) for 6 years.

      About the Reviewers

      Mostafa A. Hamid is a CISSP (2013), CEH v8, MCSD, IBM RUP Architect, and MCP (SUNY Potsdam USA).

      He is also certified in PHP, JavaScript, Backbone, Java, Spring, Node.js, and XML web services (SUNY Potsdam, USA).

      He has a bachelor's degree in management information systems (Modern Academy for Computer Science and Management Technology).

      He is also certified in Java (The American University in Cairo).

      He has been a technical support at Hilton, a technical support at United Systems, an IT manager at Media Plans, an ICT and IT teacher and software engineer at

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