36 lines
1.4 KiB
ReStructuredText
36 lines
1.4 KiB
ReStructuredText
===============================
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OpenStack Orchestration service
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===============================
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The Orchestration service provides a template-based orchestration for
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describing a cloud application by running OpenStack API calls to
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generate running cloud applications. The software integrates other core
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components of OpenStack into a one-file template system. The templates
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allow you to create most OpenStack resource types, such as instances,
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floating IPs, volumes, security groups, and users. It also provides
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advanced functionality, such as instance high availability, instance
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auto-scaling, and nested stacks. This enables OpenStack core projects to
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receive a larger user base.
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The service enables deployers to integrate with the Orchestration service
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directly or through custom plug-ins.
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The Orchestration service consists of the following components:
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``heat`` command-line client
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A CLI that communicates with the ``heat-api`` to run :term:`AWS`
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CloudFormation APIs. End developers can directly use the Orchestration
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REST API.
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``heat-api`` component
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An OpenStack-native REST API that processes API requests by sending
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them to the ``heat-engine`` over :term:`Remote Procedure Call (RPC)`.
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``heat-api-cfn`` component
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An AWS Query API that is compatible with AWS CloudFormation. It
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processes API requests by sending them to the ``heat-engine`` over RPC.
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``heat-engine``
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Orchestrates the launching of templates and provides events back to
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the API consumer.
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