]>
Launch an instance from an image When you launch an instance from an image, OpenStack creates a local copy of the image on the Compute node where the instance starts. Log in to the dashboard, choose a project, and click the Images & Snapshot category. The dashboard shows the images that have been uploaded to OpenStack Image Service and are available for this project. Select an image and click Launch. In the Launch Instance window, specify the following values: Details tab Instance Source Image or snapshot. Instance Name The name to assign to the virtual machine. Flavor The size of the virtual machine to launch. Instance Count To launch multiple instances, enter a value greater than 1. Default is 1. Access & Security tab Keypair A keypair. In case an image uses a static root password or a static key set (neither is recommended), you do not need to provide a keypair to launch the instance. Security Groups Activate the security groups that you want to assign to the instance. Security groups are a kind of cloud firewall that define which incoming network traffic is forwarded to instances. For details, see . If you have not created any security groups, you can assign only the default security group to the instance. Volume Options tab Volume Options Not applicable when you launch an instance from an image.To launch from a volume or volume snapshot, select the appropriate option in the Volume Options drop-down list. Then, choose the volume or snapshot. For information about how to create a bootable volume, see . Post-Creation tab Customization Script A customization script that runs after your instance launches. Click Launch. The instance starts on a Compute node in the cloud. The Instances category shows the instance name, its private and public IP addresses, size, status, task, and power state. If you did not provide a keypair, security groups, or rules so far, users can only access the instance from inside the cloud through VNC. Even pinging the instance is not possible. To access the instance through a VNC console, see .