Instances are virtual machines that run inside the cloud.
Launching instances are easily done, using the Openstack Dashboard. We simply select our chosen image, choose the size of the instance, and then launch it.
Load a Web browser, point it to our OpenStack Dashboard address at https://172.16.0.200/horizon, and log in as a user, such as the demo user created in Adding users of keystone Openstack Identity Service, with the password openstack.
To launch an instance by using the OpenStack Dashboard interface, carry out the following steps:
If you haven’t created a keypair you can click on the + button and import a key from this dialog box.
If the display hasn’t refreshed, click on the Instances tab to refresh the information manually.
Launching instances from Horizon—the OpenStack Dashboard—is done in two stages:
The Instances tab shows the running instances under our cookbook project.
You can also see an overview of what is running in our environment, by clicking on the Overview tab.
Terminating instances can be simply done by using OpenStack Dashboard.
Load a Web browser, point it to our OpenStack Dashboard address at https://172.16.0. 200/horizon, and log in as a user, such as the demo user created in Adding users recipe of Keystone OpenStack Identity Service, with the password openstack.
To terminate instances by using OpenStack Dashboard, carry out the following steps:
Terminating instances by using OpenStack Dashboard is easy. We simply select our running instance and click on the Terminate Instances button, which is highlighted when an instance is selected. After clicking on the Terminate Instances button, we are asked to confirm this action to minimize the risk of accidentally terminating an instance.
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