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Keyname | Required | Type | Constraints | Description |
occurrences | no | range of integer | when not specified, defaults to [1,1] | The optional minimum and maximum number of instances that can be created from this node template. If not specified, only one single instance can be created. |
instance_count | no | integer | when not specified, defaults to the lower bound of the range specified by the ‘occurrences’ keyname | The requested number of runtime instance of the node template. |
see Reference:
1, TOSCA Enhancements to Support Multiple Node Template Instances