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Parser for TOSCA Simple Profile in YAML.
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TOSCA Parser


The TOSCA Parser is an OpenStack project and licensed under Apache 2. It is developed to parse TOSCA Simple Profile in YAML. It reads the TOSCA templates and creates an in-memory graph of TOSCA nodes and their relationship.


The TOSCA Parser takes TOSCA YAML template or TOSCA Cloud Service Archive (CSAR) file as an input, with optional input of dictionary of needed parameters with their values, and produces in-memory objects of different TOSCA elements with their relationship to each other. It also creates a graph of TOSCA node templates and their relationship.

The ToscaTemplate class located in the toscaparser/ is an entry class of the parser and various functionality of parser can be used by initiating this class. In order to see an example usage of TOSCA Parser from a separate tool, refer to the OpenStack heat-translator class TranslateTemplate located in the translator/osc/v1/ module. The toscaparser/ module of tosca-parser also provides a good reference on how to invoke TOSCA Parser from Command Line Interface.

The toscaparser/elements sub-directory contains various modules to handle various TOSCA type elements like node type, relationship type etc. The module is a parent of all type elements. The toscaparser directory contains various python module to handle service template including topology template, node templates, relationship templates etc. The is a parent of all template elements.

How To Use

Please refer to doc/source/usage.rst

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