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