Mark Payne created NIFI-8644:
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Summary: Update Stateless so that a ParameterProviderDefinition is
provided to dataflow instead of ParameterProvider
Key: NIFI-8644
URL: https://issues.apache.org/jira/browse/NIFI-8644
Project: Apache NiFi
Issue Type: Improvement
Components: NiFi Stateless
Reporter: Mark Payne
Assignee: Mark Payne
Currently, when a stateless dataflow is created, a ParameterProvider is
supplied, which the engine can use to retrieve parameterized values for the
dataflow.
However, it will make sense going forward to allow for a ParameterProvider to
be defined outside of the scope of what is provided by default in the stateless
api. For example, there may be a desire to integrate with a a secret store
provided by a public cloud service, etc. Such a capability would need to be
encapsulated in a NAR instead of added to the root class path.
As such, we need to refactor the stateless api such that instead of providing a
ParameterProvider, we instead introduce a notion of a
ParameterProviderDefinition, and then include a List of
ParameterProviderDefinitions as part of the Dataflow Definition.
In this way, we can make the parameter retrieval far more flexible and powerful.
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