Booting from volumes
by Tony Campbell, Egle Sigler, Cody Bunch, Kevin Jackson, Sunil Sarat, Alok Shrivas
OpenStack: Building a Cloud Environment
- OpenStack: Building a Cloud Environment
- Table of Contents
- OpenStack: Building a Cloud Environment
- OpenStack: Building a Cloud Environment
- Credits
- Preface
- 1. Module 1
- 1. An Introduction to OpenStack
- 2. Authentication and Authorization Using Keystone
- Identity concepts in Keystone
- Architecture and subsystems
- Installing common components
- Installing Keystone
- Verifying the installation
- Troubleshooting the installation and configuration
- Summary
- 3. Storing and Retrieving Data and Images using Glance, Cinder, and Swift
- Introducing storage services
- Working with Glance
- Working with Cinder
- Working with Swift
- Troubleshooting steps
- Summary
- 4. Building Your Cloud Fabric Controller Using Nova
- 5. Technology-Agnostic Network Abstraction Using Neutron
- The software-defined network paradigm
- Neutron
- Installing Neutron
- Troubleshooting Neutron
- Summary
- 6. Building Your Portal in the Cloud
- 7. Your OpenStack Cloud in Action
- 8. Taking Your Cloud to the Next Level
- Working with Heat
- Ceilometer
- Installing Ceilometer
- Installing Ceilometer on the compute node
- Installing Ceilometer on the storage node
- Testing the installation
- Billing and usage reporting
- Summary
- 9. Looking Ahead
- A. New Releases
- 2. Module 2
- 1. Keystone – OpenStack Identity Service
- Introduction
- Installing the OpenStack Identity Service
- Configuring OpenStack Identity for SSL communication
- Creating tenants in Keystone
- Configuring roles in Keystone
- Adding users to Keystone
- Defining service endpoints
- Creating the service tenant and service users
- Configuring OpenStack Identity for LDAP Integration
- 2. Glance – OpenStack Image Service
- Introduction
- Installing OpenStack Image Service
- Configuring OpenStack Image Service with OpenStack Identity Service
- Configuring OpenStack Image Service with OpenStack Object Storage
- Managing images with OpenStack Image Service
- Registering a remotely stored image
- Sharing images among tenants
- Viewing shared images
- Using image metadata
- Migrating a VMware image
- Creating an OpenStack image
- 3. Neutron – OpenStack Networking
- Introduction
- Installing Neutron and Open vSwitch on a dedicated network node
- Configuring Neutron and Open vSwitch
- Installing and configuring the Neutron API service
- Creating a tenant Neutron network
- Deleting a Neutron network
- Creating an external floating IP Neutron network
- Using Neutron networks for different purposes
- Configuring Distributed Virtual Routers
- Using Distributed Virtual Routers
- 4. Nova – OpenStack Compute
- Introduction
- Installing OpenStack Compute controller services
- Installing OpenStack Compute packages
- Configuring database services
- Configuring OpenStack Compute
- Configuring OpenStack Compute with OpenStack Identity Service
- Stopping and starting nova services
- Installation of command-line tools on Ubuntu
- Using the command-line tools with HTTPS
- Checking OpenStack Compute services
- Using OpenStack Compute
- Managing security groups
- Creating and managing key pairs
- Launching our first cloud instance
- Fixing a broken instance deployment
- Terminating your instances
- Using live migration
- Working with nova-schedulers
- Creating flavors
- Defining host aggregates
- Launching instances in specific Availability Zones
- Launching instances on specific Compute hosts
- Removing Nova nodes from a cluster
- 5. Swift – OpenStack Object Storage
- Introduction
- Configuring Swift services and users in Keystone
- Installing OpenStack Object Storage services – proxy server
- Configuring OpenStack Object Storage – proxy server
- Installing OpenStack Object Storage services – storage nodes
- Configuring physical storage for use with Swift
- Configuring Object Storage replication
- Configuring OpenStack Object Storage – storage services
- Making the Object Storage rings
- Stopping and starting OpenStack Object Storage
- Setting up SSL access
- 6. Using OpenStack Object Storage
- 7. Administering OpenStack Object Storage
- 8. Cinder – OpenStack Block Storage
- 9. More OpenStack
- Introduction
- Using cloud-init to run post-installation commands
- Using cloud-config to run the post-installation configuration
- Installing OpenStack Telemetry
- Using OpenStack Telemetry to interrogate usage statistics
- Installing Neutron LBaaS
- Using Neutron LBaaS
- Configuring Neutron FWaaS
- Using Neutron FWaaS
- Installing the Heat OpenStack Orchestration service
- Using Heat to spin up instances
- 10. Using the OpenStack Dashboard
- Introduction
- Installing OpenStack Dashboard
- Using OpenStack Dashboard for key management
- Using OpenStack Dashboard to manage Neutron networks
- Using OpenStack Dashboard for security group management
- Using OpenStack Dashboard to launch instances
- Using OpenStack Dashboard to terminate instances
- Using OpenStack Dashboard to connect to instances using a VNC
- Using OpenStack Dashboard to add new tenants – projects
- Using OpenStack Dashboard for user management
- Using OpenStack Dashboard with LBaaS
- Using OpenStack Dashboard with OpenStack Orchestration
- 11. Production OpenStack
- Introduction
- Installing the MariaDB Galera cluster
- Configuring HA Proxy for the MariaDB Galera cluster
- Configuring HA Proxy for high availability
- Installing and configuring Pacemaker with Corosync
- Configuring OpenStack services with Pacemaker and Corosync
- Bonding network interfaces for redundancy
- Automating OpenStack installations using Ansible – host configuration
- Automating OpenStack installations using Ansible – Playbook configuration
- Automating OpenStack installations using Ansible – running Playbooks
- 1. Keystone – OpenStack Identity Service
- 3. Module 3
- 1. The Troubleshooting Toolkit
- 2. Troubleshooting OpenStack Identity
- 3. Troubleshooting the OpenStack Image Service
- 4. Troubleshooting OpenStack Networking
- 5. Troubleshooting OpenStack Compute
- 6. Troubleshooting OpenStack Block Storage
- 7. Troubleshooting OpenStack Object Storage
- 8. Troubleshooting the OpenStack the Orchestration Service
- 9. Troubleshooting the OpenStack Telemetry Service
- 10. OpenStack Performance, Availability, and Reliability
- A. Bibliography
- Index
Booting from a Cinder volume gives a number of benefits as an OpenStack Operator. You can provide a level of resiliency to your instances, or you can enable Live-Migration of an instance where you are not counting on Libvirt to migrate the disk for you.
Ensure you are logged in to the Ubuntu host where the cinder command-line utilities are installed and source your OpenStack environment admin credentials.
To boot an instance from a volume, we first need to select an image to boot from as well as a flavor of our choice. The steps are follows:
- Get the UUID of the image to boot:
nova image-listThe command generates the following output:
- Get the flavor ID for
m1.tiny:nova flavor-listThe command generates the following output:
- Since our lab environment is configured with two networks, we will need to choose the network to attach our instance to. First, list available networks:
neutron net-listThe available networks will be displayed:
- Finally, we issue the
nova bootcommand:nova boot --flavor m1.tiny --block-device source=image,id=trusty-image,shutdown=preserve,dest=volume,size=15,bootindex=0 --key_name demokey --nic net-id=03575e772-b021-425c-bc17-5a3263247fb8 --config-drive=true CookBook_Instance
As you can see, in the final step we passed a lot of new parameters to nova boot to tell Nova to use Cinder while booting the image. Specifically, --block-device, along with its sub-parameters source, id, shutdown, destination, size, and boot index, tell Nova to boot from a specific image (source and id), to preserve the Cinder volume when you shutdown the instance (shutdown), and that the destination is to be a cinder-volume of a specific size (dest and size).
-
No Comment
..................Content has been hidden....................
You can't read the all page of ebook, please click here login for view all page.