Creating a flavor
by James Denton, Egle Sigler, Cody Bunch, Kevin Jackson
OpenStack Cloud Computing Cookbook - Fourth Edition
- OpenStack Cloud Computing Cookbook Fourth Edition
- Table of Contents
- OpenStack Cloud Computing Cookbook Fourth Edition
- Why subscribe?
- Contributors
- Preface
- 1. Installing OpenStack with Ansible
- Introduction – the OpenStack architecture
- Host network configuration
- Root SSH keys configuration
- Installing Ansible, playbooks, and dependencies
- Configuring the installation
- Running the OpenStack-Ansible playbooks
- Troubleshooting the installation
- Manually testing the installation
- Modifying the OpenStack configuration
- Virtual lab - vagrant up!
- 2. The OpenStack Client
- Introduction – using OpenStack
- Installing Python on Windows
- Installing the OpenStack clients
- Configuring your Linux or macOS environment
- Configuring your Windows environment
- Common OpenStack networking tasks
- Getting ready
- How to do it…
- Creating a network
- Creating a provider network (for use with Floating IPs)
- Creating a new security group
- Adding a rule to a security group
- Creating a router
- Adding a subnet to a router
- 3. Keystone – OpenStack Identity Service
- Introduction – OpenStack Identity
- Creating OpenStack domains in Keystone
- Enabling domains in the OpenStack dashboard
- Creating OpenStack projects in Keystone
- Configuring roles in Keystone
- Adding users in Keystone
- Configuring groups in Keystone
- Deleting projects
- Deleting users
- Deleting roles
- Deleting groups
- Deleting domains
- OpenStack endpoint information
- 4. Neutron – OpenStack Networking
- Introduction to OpenStack networking
- Managing networks, subnets, and ports
- Creating provider networks
- Creating tenant networks
- Creating ports
- Updating network attributes
- Deleting ports
- Deleting networks
- Managing routers and floating IPs
- Attaching networks to routers
- Creating and assigning floating IPs
- Deleting routers
- Managing security groups
- Managing load balancers
- Creating load balancers
- Getting ready
- How to do it…
- How it works...
- Creating pools
- Getting ready
- How to do it…
- How it works...
- Creating members
- Getting ready
- How to do it…
- How it works...
- Creating listeners
- Getting ready
- How to do it…
- How it works...
- Verifying connectivity
- Getting ready
- How to do it…
- 5. Nova – OpenStack Compute
- Introduction to OpenStack Compute
- Adding a compute host using OpenStack-Ansible
- Suspending a host for maintenance
- Configuring Nova Scheduler to use host aggregates
- Creating a host aggregate
- Adding a compute host to a host aggregate
- Removing a compute host from a host aggregate
- Adding metadata to a host aggregate
- Deleting a host aggregate
- Creating an Availability Zone
- Booting an instance into an Availability Zone
- Removing an Availability Zone
- Creating a flavor
- Deleting a flavor
- Setting CPU limits for a flavor
- Setting IOPS limits for a flavor
- Booting an instance
- Stopping an instance
- Deleting an instance
- Live migration
- Snapshotting an instance
- Booting an instance from a snapshot
- Rescuing an instance
- Shelving an instance
- Reviewing the console logs
- 6. Glance – OpenStack Image Service
- 7. Cinder – OpenStack Block Storage
- 8. Swift – OpenStack Object Storage
- 9. OpenStack Orchestration Using Heat and Ansible
- Introduction – orchestrating with OpenStack
- Creating your first stack
- Launching your stack with Heat
- Viewing the resources and output of a stack created with Heat
- Deleting a Heat stack
- Updating a Heat stack
- Installing and configuring Ansible for OpenStack
- Using Ansible to launch instances
- Using Ansible to orchestrate software installation
- Using Ansible to orchestrate software installations across multiple instances
- Using Ansible to fully orchestrate the creation of a web server and load balancer stack
- 10. Using OpenStack Dashboard
- Introduction – OpenStack Dashboard
- Using OpenStack Dashboard for key management
- Using OpenStack Dashboard to manage Neutron networks and routers
- Using OpenStack Dashboard for security group management
- Using OpenStack Dashboard to launch instances
- Using OpenStack Dashboard to delete instances
- Using OpenStack Dashboard to add new projects
- Using OpenStack Dashboard for user management
- Using OpenStack Dashboard with LBaaS
- Using OpenStack Dashboard with OpenStack Orchestration
- Another Book You May Enjoy
- Index
- Creating a network
Before Nova can start instances, it first needs to know what resources should be assigned to those instances. The way Nova handles resource assignments is to define flavors. A flavor specifies the number of vCPUs, RAM, and the disk to assign to an instance.
To create a new flavor, you will need the following:
- The
openstackcommand-line client - The
openrcfile containing appropriate credentials - The name, vCPU, RAM, and disk values for the new flavor
The flavor we will create in this example will have the following attributes:
- Flavor name:
openstack.cookbook - vCPU: 1
- Ram: 512 MB
- Disk: 5 GB
- Visibility: Public
The following commands are used to create a new flavor:
- First, list the available flavors already configured in our environment with the following command:
openstack flavor listThis will bring back an output like the following:
- Create the flavor with our given attributes:
openstack flavor create --vcpus 1 --ram 512 --disk 5 --public openstack.cookbook
This will bring back an output like the following:
- List the flavors again to see the new flavor:
openstack flavor listThis gives an output like the following:
The openstack flavor create --vcpus [vcpu_count] --ram [ram_MB] --disk [disk_GB] --public [name] command is used to define flavors. The --public option is used to specify if the flavor should be available to all users of the OpenStack environment, or if it should remain limited in scope and visibility to the project in which the user belongs to.
-
No Comment
..................Content has been hidden....................
You can't read the all page of ebook, please click here login for view all page.