[jira] [Commented] (NIFI-5296) Add EL Support with Variable Registry scope on SSL context service

["Corey Fritz (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-5296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16584889#comment-16584889 ] 

Corey Fritz commented on NIFI-5296:
-----------------------------------

I opened NIFI-5511 for this same feature and [~pvillard] closed it as a dupe of this ticket.

[~alopresto], I understand your concerns, but I'd still like to figure out how we can support the following use case:

We have several flows committed to a NiFi Registry that require an SSL context. We deploy those flows to multiple environments (dev, qa, uat, and production). Each environment may have different key, keystore, truststore passwords. Would be great if we could use an EL expression to reference passwords that are set as env variables in the containers running NiFi (we're deploying our clusters to Kubernetes). The flow authors have no need to know what those passwords actually are.

We've been using this technique for setting environment-specific values in our flows (URLs for HTTP processors, database connection parameters, etc.). The environment variables are configured by the cluster administrators, and the flow authors just use EL expressions to reference those environment variables.

 

> Add EL Support with Variable Registry scope on SSL context service
> ------------------------------------------------------------------
>
>                 Key: NIFI-5296
>                 URL: https://issues.apache.org/jira/browse/NIFI-5296
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Extensions
>            Reporter: Pierre Villard
>            Assignee: Pierre Villard
>            Priority: Major
>
> Add EL support on Truststore and Keystore filename properties with Variable Registry scope.



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