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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. For details on creating images, see Creating images manually in the OpenStack Virtual Machine Image Guide. Select an image and click Launch. In the Launch Instance window, specify the following values: Details tab Availability Zone By default, this value is set to the availability zone given by the cloud provider (for example, us-west or apac-south). Though, it could be nova for most cases. Instance Name The name to assign to the virtual machine. The name you assign here becomes the initial host name of the server. After the server is built, if you change the server name in the API or change the host name directly, the names are not updated in the dashboard. Server names are not guaranteed to be unique when created so you could have two instances with the same host name. Flavor The size of the virtual machine to launch. Instance Count To launch multiple instances, enter a value greater than 1. Default is 1. Instance Boot Source Your options are: Boot from image - If you choose this option, a new field for Image Name displays. You can select the image from the dropdown list. Boot from snapshot - If you choose this option, a new field for Instance Snapshot displays. You can select the snapshot from the dropdown list. Boot from volume - If you choose this option, a new field for Volume displays. You can select the volume from the dropdown list. Boot from image (creates a new volume) - With this option, you can boot from an image and create a volume by entering the Device Size and Device Name for your volume. Boot from volume snapshot (creates a new volume) - Using this option, you can boot from a volume snapshot and create a new volume by choosing Volume Snapshot from a dropdown list and adding a Device Name for your volume. Since you are launching an instance from an image, Boot from image is chosen by default. Image Name This field changes based on your previous selection. Since you have chosen to launch an instance using an image, the Image Name field displays. Select the image name from the dropdown list. Access & Security tab Keypair Select a keypair from the dropdown list. 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. Networking tab Selected Networks To add a network to the instance, click the + in the Available Networks field. 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 .