Appendix A. Components

This section contains a list of components that the director uses.

Shared Libraries

diskimage-builder: diskimage-builder is an image building tool.
dib-utils: dib-utils contains tools that diskimage-builder uses.
os-collect-config, os-refresh-config, os-apply-config, os-net-config: A suite of tools used to configure instances.
tripleo-image-elements: tripleo-image-elements is a repository of diskimage-builder style elements for installing various software components.

Installer

instack: instack executes diskimage-builder style elements on the current system. This enables a current running system to have an element applied in the same way that diskimage-builder applies the element to an image build.
instack-undercloud: instack-undercloud is the Undercloud installer based around instack.

Node Management

ironic: The OpenStack Ironic project is responsible for provisioning and managing bare metal instances.
ironic-discoverd: ironic-discoverd discovers hardware properties for newly enrolled nodes.

Deployment Planning

tuskar: The OpenStack Tuskar project is responsible for planning of deployments

Deployment and Orchestration

heat: The OpenStack Heat project is an orchestration tool. It reads YAML files describing the OpenStack environment’s resources and sets those resources into a desired state.
heat-templates: The openstack-heat-templates repository contains additional image elements for producing disk images for Puppet configuration using Heat.
tripleo-heat-templates: The openstack-tripleo-heat-templates repository describe the OpenStack environment in Heat Orchestration Template YAML files and Puppet manifests. Tuskar processes these templates, which develop into an actual environment through Heat.
puppet-modules: OpenStack Puppet modules are used to configure the OpenStack environment through tripleo-heat-templates.
tripleo-puppet-elements: The tripleo-puppet-elements describe the contents of disk images which the director uses to install Red Hat Enterprise Linux OpenStack Platform.

User Interfaces

tuskar-ui: Provides a GUI to install and manage OpenStack. It is implemented as a plugin to the Horizon dashboard.
tuskar-ui-extras: Provides GUI enhancements for tuskar-ui. It is implemented as a plugin to the Horizon dashboard.
python-openstackclient: The python-openstackclient is a CLI tool that manages multiple openstack services and clients.
python-rdomanager-oscplugin: The python-rdomanager-oscplugin is a CLI tool embedded into python-openstackclient. It provides functions related to instack installation and initial configuration.

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