[jira] [Created] (NIFI-11057) Allow docker user to add a nar provider of type nifi-registry

[Dominique Jean-Prost (Jira)]

Dominique Jean-Prost created NIFI-11057:
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             Summary: Allow docker user to add a nar provider of type 
nifi-registry
                 Key: NIFI-11057
                 URL: https://issues.apache.org/jira/browse/NIFI-11057
             Project: Apache NiFi
          Issue Type: Improvement
    Affects Versions: 1.19.1
            Reporter: Dominique Jean-Prost


As a docker user, I cannot give a value for 
{{{}nifi.nar.library.provider.nifi-registry{}}}.
There is currently no ENV variable to do so.

So this jira would need to add a new function in {{common.sh}} to allow to add 
a property line in a file. The existing 2 functions are {{prop_replace}} and 
{{{}uncomment{}}}. I suggest adding a {{prop_add}} to allow adding a property.


Then if the suggested env variable 
{{NIFI_NAR_LIBRARY_PROVIDER_NIFI_REGISTRY_URL}} is set, then create two lines
{code:java}
nifi.nar.library.provider.nifi-registry.implementation=org.apache.nifi.registry.extension.NiFiRegistryNarProvider
nifi.nar.library.provider.nifi-registry.url= value of 
NIFI_NAR_LIBRARY_PROVIDER_NIFI_REGISTRY_URL
{code}



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