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TOSCA 1.2 allows using a JSON schema as a TOSCA constraint in parameter definition and node_filter clauses. Using an external schema document (with a Web URL in the TOSCA constraint clause) seems to be especially promising, since such usage combines the benefits of schema-driven validation with the flexibility of having the schema hosted outside:
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requirements:
- cpu:
node_filter:
capabilities: onap.capabilities.infrastructure.CPU
properties:
num_cpus:
- greater_or_equal: 2
custom_features:
- schema: http://my.domain.com/url/datatype.constraints.schema.json |