Learning OpenStack by Shrivastwa, Alok -- Read -- Imperial Library of Trantor

Index

Learning OpenStack

Table of Contents Learning OpenStack Credits About the Authors About the Reviewers www.PacktPub.com

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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

1. An Introduction to OpenStack

Choosing an orchestrator Building a private cloud

Commercial orchestrators OpenStack

When to choose OpenStack?

OpenStack architecture Service relationships Services and releases history Service functions

Keystone Horizon Nova Glance Swift Cinder Neutron Heat Ceilometer Trove Sahara Designate Ironic Zaqar Barbican Manila Murano Magnum Kolla Congress

Service dependency maps

Preparing for the OpenStack setup

Selecting the services Service layout

Controller node Network node Compute node Storage node

Operating system Network layout

Summary

2. Authentication and Authorization Using Keystone

Identity concepts in Keystone

User Project (or tenant) Role

Architecture and subsystems

Identity Resource Assignment Policy Token Catalog

Installing common components

Setting up the database

Installing MariaDB

Step 1: Setting MariaDB repository Step 2: Installing the MariaDB package

Configuring the database Securing the database Testing the installation

Setting up the messaging broker

Installing RabbitMQ

Step 1: Setting up the RabbitMQ repository Step 2: Installing the RabbitMQ package

Configuring the RabbitMQ server Testing the installation

Installing Keystone

Setting up the OpenStack repository Creating the database Installing the package The initial configuration

Generating the admin token Modifying the Keystone configuration file Populating the Keystone DB Setting up your first tenant

Setting up environment variables Creating the tenant Creating the user Creating and mapping the role

Creating service endpoints

Creating the service Creating the endpoint

Verifying the installation

Using Keystone CLI Using the API

Troubleshooting the installation and configuration

DB sync errors

System language settings Configuration errors

Failing Keystone commands

Service non-responsive DNS issues Network issues

Summary

3. Storing and Retrieving Data and Images using Glance, Cinder, and Swift

Introducing storage services Working with Glance

Creating the database Installing the packages Initial configuration of Glance

Creating a user in Keystone Creating a Glance service in Keystone Creating a Glance endpoint Modifying Glance configuration Populating the Glance database

Finalizing the installation Validating the installation

Working with Cinder

Controller node Creating the database Installing packages Initial configuration

Creating a user in Keystone Creating Cinder service in Keystone Creating Cinder endpoints Modifying the configuration files Populating the Cinder database

Finalizing the installation Storage node

Understanding the prerequisites Installing the packages Modifying the configuration files Finalizing the installation Validating the installation

Working with Swift

Controller node Installing packages Initial configuration

Creating a user in Keystone Creating a Swift service in Keystone Creating a Swift endpoint Modifying the configuration files

The storage node

Understanding the prerequisites Installing the packages Modifying the configuration files

Account server configuration Container server configuration Object server configuration

Creating the rings

Account ring Container ring Object ring

Distributing the ring Finalizing and validating the install

Troubleshooting steps

Swift authentication error

Ring files don't get created

Summary

4. Building Your Cloud Fabric Controller Using Nova

Working with Nova Installing Nova components

Installing on the controller node

Creating the database Installing components Initial configuration

Creating the Nova user in Keystone Creating the Nova service in Keystone Creating the Nova endpoint in Keystone Modifying the configuration file Populating the database Finalizing the installation

Installing on the compute node

Installing KVM Installing Nova compute components Modifying the host files Modifying the configuration file Finalizing the installation

Verifying the installation Console access Designing your Nova environment

Logical constructs

Region Availability zone The host aggregates

Virtual machine placement logic Sample cloud design

Troubleshooting installation Summary

5. Technology-Agnostic Network Abstraction Using Neutron

The software-defined network paradigm

What is an overlay network?

Components of overlay networks Overlay technologies

GRE VXLAN

Underlying network considerations

Open flow

Underlying network consideration

Neutron

Architecture of Neutron

The Neutron server L2 agent L3 agent

Understanding the basic Neutron process Networking concepts in Neutron

Installing Neutron

Installing on the controller node

Creating the database Installing Neutron control components Initial configuration

Creating the Neutron user in Keystone Creating the Neutron service in Keystone Creating the Neutron endpoint in Keystone Modifying the configuration files

Setting up the database Finalizing the installation Validating the installation

Installing on the network node

Setting up the prerequisites Installing Neutron packages Initial configuration on the network node

Neutron configuration ML2 plugin Configuring agents

Layer 3 agent Layer 3 agent

Configuring the metadata agent

Setting up OVS Finalizing the installation Validating the installation

Installing on the compute node

Setting up the prerequisites Installing packages Initial configuration

Neutron configuration ML2 plugin Nova configuration

Finalizing the installation Validating the installation

Troubleshooting Neutron Summary

6. Building Your Portal in the Cloud

Working with Horizon

Some basic terminologies System requirements to install Horizon Installing Horizon The initial configuration of Horizon Finalizing the installation Validating the installation The structure of the Horizon dashboard

Troubleshooting Horizon

Understanding the Horizon log

Summary

7. Your OpenStack Cloud in Action

Gathering service requirements Tenant and user management

GUI

Creating the project Adding users Associating users to the project

CLI

Creating the project Creating the users Associating users to the roles

Network management

Network types

Physical network Virtual network

Tenant network Provider network Implementations of virtual networks

External network

Creating the network Creating the subnet

Tenant network

Create the tenant network Creating a subnet Creating a router

Requesting services

Access and security

Security groups Key pairs

Requesting your first VM

Creating a security group Creating a key pair Launching an instance Using CLI tools

Generating a key pair Requesting a server

Behind the scenes - how it all works Creating VM templates

Installing Oz and its dependencies

RHEL/CentOS Ubuntu

Oz templates Creating VM templates using Oz Uploading the image

Summary

8. Taking Your Cloud to the Next Level

Working with Heat

The components of Heat Heat Orchestration Template (HOT) Installing Heat

Creating the database Installing components The initial configuration

Creating a Heat user in Keystone Creating additional Heat stack roles Creating Heat services in Keystone Creating Heat endpoints in Keystone Modifying the configuration file Populating the database

Finalizing the installation

Deploying your first HOT

Ceilometer

Installing Ceilometer

Installing Ceilometer on the controller node

Installing and configuring MongoDB Creating the database Installing packages Initial configuration

Creating the Ceilometer user in Keystone Creating the Ceilometer service Creating the Ceilometer endpoint Generating a random password Editing the configuration files

Enabling the Glance notification Enabling the Cinder notification Enabling the Swift notification

Creating the ResellerAdmin role Enabling notifications Allowing Swift access to Ceilometer files

Finalizing the installation

Installing Ceilometer on the compute node

Installing the packages

Ceilometer-Agent-Compute Initial configuration Enable Nova notification Finalizing the installation

Installing Ceilometer on the storage node

Enabling Cinder notification Finalizing the installation

Testing the installation Billing and usage reporting Summary

9. Looking Ahead

OpenStack distributions

Devstack Operating system distributions

Ubuntu OpenStack RedHat OpenStack Oracle OpenStack

Vendor offerings

VMware integrated OpenStack Rackspace cloud HP Helion Cisco OpenStack Mirantis OpenStack SwiftStack IBM Cloud manager Suse Cloud

Other public clouds Choosing a distribution

OpenStack in action

Enterprise Private Cloud Service providers Schools/Research centers Web/SaaS providers

The roadmap What is in it for you? Summary

A. New Releases

The releases Features and differences Changes in the installation procedure

Adding the repository The OpenStack client Installing Keystone Service configurations

Upgrading from Juno

Cleanup Backup Adding the repositories Running the upgrade Installing additional components Updating the DB schema Modifying configuration files Restarting services

Index

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