Using OpenStack Dashboard with OpenStack Orchestration
Heat is the OpenStack Orchestration engine that enables users to quickly spin up whole environments using templates. Heat templates, known as HOT (Heat Orchestration Templates) are YAML (Yet Another Markup Language) based files. The files describe the resources being used, and the type and size of the instances, and the network an instance will be attached to, among other pieces of information required to run that environment.
In Chapter 9, OpenStack Orchestration Using Heat and Ansible, we showed you how to use the Heat command-line client. In this section, we will show how to use an existing Heat template file in OpenStack Dashboard to spin up two web servers running Apache, connected to a third instance running HA Proxy.
Getting ready
Load a web browser, point it to our OpenStack Dashboard address at http://192.168.100.117/
, and log in as a user in the default
domain, such as the developer
user, created in the Common OpenStack identity...