Github user apiri commented on the issue:
https://github.com/apache/nifi/pull/1910
@cricket007 The Dockerfiles are part of the entire NiFi codebase. There
has been some discussion about breaking the Docker components into their own
repository which would free us from this situation and allow us to release more
frequently/independently. However, in the current state, another release would
be needed as the tagged release triggers Docker Hub to build.
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