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https://issues.apache.org/jira/browse/NIFI-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16508486#comment-16508486
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Andy LoPresto commented on NIFI-5270:
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Hi Eric,
There has been some on-going discussion of this (pre-dating the NiFi Registry
effort) and how it would relate to the Variable Registry. The effort has been
paused a bit while other priorities have come up.
I think the last discussion I recall had landed on "password guidance should
explicitly prohibit literal passwords of the format {{'${xxx}'}}" as this was
backward compatible with the existing {{PropertyDescriptor}} definitions and
did not require additional work. Now may be a good time to re-evaluate that
decision and perform new work for a future release.
https://issues.apache.org/jira/browse/NIFI-2653
https://issues.apache.org/jira/browse/NIFI-3046
https://issues.apache.org/jira/browse/NIFI-3110
https://issues.apache.org/jira/browse/NIFI-3311
https://issues.apache.org/jira/browse/NIFI-3439
https://issues.apache.org/jira/browse/NIFI-4557
> my ftp password is "${password}" so nifi's LISTFtp won't use it.
> ----------------------------------------------------------------
>
> Key: NIFI-5270
> URL: https://issues.apache.org/jira/browse/NIFI-5270
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: eric twilegar
> Priority: Major
>
> I'm joking of course, but if that was your password the processor would fail
> as it would consider it an expression and not a password.
> In all seriousness though we really do something like "isPasswordExpression"
> checkbox for all controllers. This would also allow nifi registry to not
> consider them secrets and so you don't have to cut and paste ${ftp_password}
> after deploying a version. Maybe just adding passwordExpression vs sharing
> the property is a better idea.
>
> I didn't test whether you can escape the password in someway, so there is a
> chance this isn't a bug.
>
>
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