2ce5b11b1a
This patch changes the name of the Admin-Guide from the Cloud
Admin Guide to the Administrator guide. This affects the
filename in the repository, and references to cloud administrators
within the document texts.
1.) Changing instances of 'cloud administrator'
to 'administrator'.
2.) Change links from '/admin-guide-cloud/' to
'/admin-guide/' within the Admin Guide.
3.) Adjust .htaccess file.
Change-Id: I7f21a710e922981aa295afc0616de36fd819b523
Implements: blueprint user-guides-reorganised
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33 lines
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============
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Introduction
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============
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The OpenStack Orchestration service, a tool for orchestrating clouds,
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automatically configures and deploys resources in stacks. The deployments can
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be simple, such as deploying WordPress on Ubuntu with an SQL back end, or
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complex, such as starting a server group that auto scales by
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starting and stopping using real-time CPU loading information from the
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Telemetry service.
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Orchestration stacks are defined with templates, which are non-procedural
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documents. Templates describe tasks in terms of resources, parameters, inputs,
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constraints, and dependencies. When the Orchestration service was originally
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introduced, it worked with AWS CloudFormation templates, which are in the JSON
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format.
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The Orchestration service also runs Heat Orchestration Template (HOT)
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templates that are written in YAML. YAML is a terse notation that loosely
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follows structural conventions (colons, returns, indentation) that are similar
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to Python or Ruby. Therefore, it is easier to write, parse, grep, generate
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with tools, and maintain source-code management systems.
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Orchestration can be accessed through a CLI and RESTful queries.
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The Orchestration service provides both an OpenStack-native REST API and a
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CloudFormation-compatible Query API. The Orchestration service is also
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integrated with the OpenStack dashboard to perform stack functions through
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a web interface.
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For more information about using the Orchestration service through the
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command line, see the `OpenStack Command-Line Interface Reference
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<http://docs.openstack.org/cli-reference/heat.html>`_.
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