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  • Book Overview & Buying OpenStack Cloud Computing Cookbook
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OpenStack Cloud Computing Cookbook

OpenStack Cloud Computing Cookbook - Fourth Edition

By : Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
4.3 (10)
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OpenStack Cloud Computing Cookbook

OpenStack Cloud Computing Cookbook

4.3 (10)
By: Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
Buy this Book

Overview of this book

This is the fourth edition of the industry-acclaimed OpenStack Cloud Computing Cookbook, created by four recognized OpenStack experts. It has now been updated to work with the latest OpenStack builds, using tools and processes based on their collective and vast OpenStack experience. OpenStack Open Source Cloud software is one of the most used cloud infrastructures to support a wide variety of use cases, from software development to big data analysis. It is developed by a thriving community of individual developers from around the globe and backed by most of the leading players in the cloud space today. We make it simple to implement, massively scalable, and able to store a large pool of data and networking resources. OpenStack has a strong ecosystem that helps you provision your cloud storage needs. Add OpenStack's enterprise features to reduce the cost of your business. This book will begin by showing you the steps to build up an OpenStack private cloud environment using Ansible. You'll then discover the uses of cloud services such as the identity service, image service, and compute service. You'll dive into Neutron, the OpenStack Networking service, and get your hands dirty with configuring networks, routers, load balancers, and more. You’ll then gather more expert knowledge on OpenStack cloud computing by managing your cloud's security and migration. After that, we delve into OpenStack Object storage and you’ll see how to manage servers and work with objects, cluster, and storage functionalities. Finally, you will learn about OpenStack dashboard, Ansible, Keystone, and other interesting topics.
Table of Contents (15 chapters)
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OpenStack Cloud Computing Cookbook Fourth Edition
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OpenStack Cloud Computing Cookbook Fourth Edition
Contributors
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Contributors
Preface
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Preface
Another Book You May Enjoy
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Another Book You May Enjoy
Lock Free Chapter
1
Installing OpenStack with Ansible
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Installing OpenStack with Ansible
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Introduction – the OpenStack architecture
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Host network configuration
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Root SSH keys configuration
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Installing Ansible, playbooks, and dependencies
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Configuring the installation
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Running the OpenStack-Ansible playbooks
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Troubleshooting the installation
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Manually testing the installation
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Modifying the OpenStack configuration
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Virtual lab - vagrant up!
2
The OpenStack Client
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The OpenStack Client
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Introduction – using OpenStack
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Installing Python on Windows
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Installing the OpenStack clients
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Configuring your Linux or macOS environment
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Configuring your Windows environment
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Common OpenStack networking tasks
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Common OpenStack server (instances) tasks
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Common OpenStack image tasks
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Common OpenStack identity tasks
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Common OpenStack storage tasks
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Common OpenStack orchestration tasks
3
Keystone – OpenStack Identity Service
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Keystone – OpenStack Identity Service
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Introduction – OpenStack Identity
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Creating OpenStack domains in Keystone
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Enabling domains in the OpenStack dashboard
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Creating OpenStack projects in Keystone
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Configuring roles in Keystone
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Adding users in Keystone
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Configuring groups in Keystone
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Deleting projects
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Deleting users
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Deleting roles
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Deleting groups
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Deleting domains
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OpenStack endpoint information
4
Neutron – OpenStack Networking
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Neutron – OpenStack Networking
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Introduction to OpenStack networking
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Managing networks, subnets, and ports
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Creating provider networks
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Creating tenant networks
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Creating ports
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Updating network attributes
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Deleting ports
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Deleting networks
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Managing routers and floating IPs
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Attaching networks to routers
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Creating and assigning floating IPs
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Deleting routers
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Managing security groups
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Managing load balancers
5
Nova – OpenStack Compute
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Nova – OpenStack Compute
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Introduction to OpenStack Compute
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Adding a compute host using OpenStack-Ansible
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Suspending a host for maintenance
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Configuring Nova Scheduler to use host aggregates
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Creating a host aggregate
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Adding a compute host to a host aggregate
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Removing a compute host from a host aggregate
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Adding metadata to a host aggregate
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Deleting a host aggregate
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Creating an Availability Zone
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Booting an instance into an Availability Zone
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Removing an Availability Zone
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Creating a flavor
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Deleting a flavor
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Setting CPU limits for a flavor
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Setting IOPS limits for a flavor
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Booting an instance
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Stopping an instance
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Deleting an instance
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Live migration
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Snapshotting an instance
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Booting an instance from a snapshot
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Rescuing an instance
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Shelving an instance
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Reviewing the console logs
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Glance – OpenStack Image Service
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Glance – OpenStack Image Service
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Introduction to OpenStack Image services
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Managing images
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Using image snapshots
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Using image metadata
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Protecting images
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Deactivating images
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Creating custom images
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Cinder – OpenStack Block Storage
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Cinder – OpenStack Block Storage
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Introduction
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Configuring Cinder volume services
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Creating volumes
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Attaching volumes to an instance
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Detaching volumes from an instance
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Deleting volumes
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Working with volume snapshots
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Configuring volume types
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Enabling volume encryption
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Configuring volume Quality of Service (QoS)
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Resetting volume state
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Swift – OpenStack Object Storage
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Swift – OpenStack Object Storage
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Introduction – OpenStack Object Storage
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Creating object containers
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Deleting object containers
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Uploading objects
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Uploading large objects
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Downloading objects
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Deleting objects
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Container ACLs
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OpenStack Orchestration Using Heat and Ansible
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OpenStack Orchestration Using Heat and Ansible
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Introduction – orchestrating with OpenStack
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Creating your first stack
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Launching your stack with Heat
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Viewing the resources and output of a stack created with Heat
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Deleting a Heat stack
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Updating a Heat stack
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Installing and configuring Ansible for OpenStack
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Using Ansible to launch instances
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Using Ansible to orchestrate software installation
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Using Ansible to orchestrate software installations across multiple instances
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Using Ansible to fully orchestrate the creation of a web server and load balancer stack
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Using OpenStack Dashboard
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Using OpenStack Dashboard
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Introduction – OpenStack Dashboard
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Using OpenStack Dashboard for key management
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Using OpenStack Dashboard to manage Neutron networks and routers
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Using OpenStack Dashboard for security group management
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Using OpenStack Dashboard to launch instances
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Using OpenStack Dashboard to delete instances
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Using OpenStack Dashboard to add new projects
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Using OpenStack Dashboard for user management
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Using OpenStack Dashboard with LBaaS
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Using OpenStack Dashboard with OpenStack Orchestration
1
Index
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Index

Modifying the OpenStack configuration

It would be ludicrous to think that all of the playbooks would be needed to run again for a small change such as changing the CPU contention ratio from 4:1 to 8:1. So instead, the playbooks have been developed and tagged so that specific playbooks can be run associated with that particular project that would reconfigure and restart the associated services to pick up the changes.

Getting ready

Ensure that you are root on the deployment host. In most cases, this is the first infrastructure controller node, infra01.

How to do it...

The following are the common changes and how they can be changed using Ansible. As we'll adjust the configuration, all of these commands are executed from the same host you used to perform the installation.

To adjust the CPU overcommit/allocation ratio, carry out the following steps:

  1. Edit the /etc/openstack_deploy/user_variables.yml file and modify (or add) the following line (adjust the figure to suit):

    nova_cpu_allocation_ratio: 8.0

  2. Now execute the following commands to make changes in the environment:

    cd /opt/openstack-ansible/playbooks
openstack-ansible os-nova-install.yml --tags 'nova-config'

For more complex changes, for example, to add configuration that isn't a simple one-line change in a template, we can use an alternative in the form of overrides. To make changes to the default Nova Quotas, carry out the following as an example:

  1. Edit the /etc/openstack_deploy/user_variables.yml file and modify (or add) the following line (adjust the figure to suit):

    nova_nova_conf_overrides:  
  DEFAULT:
   quota_fixed_ips = -1
   quota_floating_ips = 20
   quota_instances = 20

  2. Now execute the following commands to make changes in the environment:

    cd /opt/openstack-ansible/playbooks
openstack-ansible os-nova-install.yml --tag 'nova-config'

Changes for Neutron, Glance, Cinder, and all other services are modified in a similar way. Adjust the name of the service in the syntax used. For example, to change a configuration item in the neutron.conf file, you would use the following syntax:

neutron_neutron_conf_overrides:  
  DEFAULT:
   dhcp_lease_duration = -1

Then execute the following commands:

cd /opt/openstack-ansible/playbooks
openstack-ansible os-neutron-install.yml --tag 'neutron-config'

How it works…

We modified the same OpenStack-Ansible configuration files as in the Configuring the installation recipe and executed the openstack-ansible playbook command, specifying the playbook that corresponded to the service we wanted to change. As we were making configuration changes, we notified Ansible of this through the --tag parameter.

Refer to https://docs.openstack.org/ for all configuration options for each service.

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