Learning by inference from brownfield deployments

A system comprising:

• one or more processors;
• and
• at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the one or more processors to:
• generate configuration expressions from at least one configuration template of a plurality of configuration templates based on known fabric policies, the configuration expressions includes a plurality of variables and corresponding values;
• retrieve configuration files of one or more Brownfield devices designated for deployment onto a fabric;
• match one or more variables of the configuration files with one or more variables of the plurality of variables of at least one of the configuration expressions from the at least one configuration template of the plurality of configuration templates;
• instantiate the one or more variables of the plurality of variables of at least one of the configuration expressions from the at least one configuration template of the plurality of configuration templates with one or more corresponding values retrieved from a matched portion of the configuration files of the one or more Brownfield devices thereby create one to more template instances;
• validate each of the one or more template instances against the known fabric policies;
• store one or more validated template instances associated with a device configuration as a representation of an intent associated with the device configuration;
• and
• provision the device configuration on a Greenfield device.

At least one non-transitory computer-readable storage medium having stored therein instructions which, when executed by one or more processors, cause the one or more processors to:

• generate configuration expressions from at least one configuration template of a plurality of configuration templates based on known fabric policies, the configuration expressions includes a plurality of variables and corresponding values;
• retrieve configuration files of one or more Brownfield devices designated for deployment onto a fabric;
• match one or more variables of the configuration files with one or more variables of the plurality of variables of at least one of the configuration expressions from the at least one configuration template of the plurality of configuration template;
• in response to a match, instantiate the one or more variables of the variables of the configuration expressions from the at least one configuration template of the plurality of configuration templates with corresponding values retrieved from a matched portion of the configuration files for one or more Brownfield devices thereby create one to more template instances;
• validate each of the one or more template instances against the known fabric policies;
• store one or more validated template instances associated with a device running configuration as a representation of an intent associated with the device running configuration;
• and
• provision the device running configuration on a Greenfield device.