OpenStack Orchestration (Heat)
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Welcome to the Heat documentation!

Heat is a service to orchestrate composite cloud applications using a declarative template format through an OpenStack-native REST API.

Heat's purpose and vision

  • Heat provides a template based orchestration for describing a cloud application by executing appropriate OpenStack API calls to generate running cloud applications.
  • A Heat template describes the infrastructure for a cloud application in text files which are readable and writable by humans, and can be managed by version control tools.
  • Templates specify the relationships between resources (e.g. this volume is connected to this server). This enables Heat to call out to the OpenStack APIs to create all of your infrastructure in the correct order to completely launch your application.
  • The software integrates other components of OpenStack. The templates allow creation of most OpenStack resource types (such as instances, floating ips, volumes, security groups, users, etc), as well as some more advanced functionality such as instance high availability, instance autoscaling, and nested stacks.
  • Heat primarily manages infrastructure, but the templates integrate well with software configuration management tools such as Puppet and Ansible.
  • Operators can customise the capabilities of Heat by installing plugins.

This documentation offers information aimed at end-users, operators and developers of Heat.

Installing Heat


Configuring Heat


Administering Heat


Using Heat

getting_started/create_a_stack template_guide/index templates/index glossary

Operating Heat

getting_started/on_fedora getting_started/on_ubuntu operating_guides/scale_deployment operating_guides/httpd operating_guides/upgrades_guide man/index

Developing Heat

contributing/index getting_started/on_devstack developing_guides/architecture developing_guides/pluginguide developing_guides/schedulerhints developing_guides/gmr developing_guides/supportstatus developing_guides/rally_on_gates

API Documentation

  • Heat REST API Reference (OpenStack API Complete Reference - Orchestration)

Code Documentation


Indices and tables

  • genindex
  • modindex
  • search