Distribution neutral packaging of OpenSearch core

[andrross]

I'm raising this issue to track a longer term refactoring/improvement of the build process for OpenSearch. The immediate impact that motivated #2571 has been mitigated. However, the existing build process involves building distribution-specific opensearch-min artifacts (such as an RPM), which are subsequently extracted, modified, then repackaged for the full distribution. This seems to be a bit of a roundabout mechanism and has led to problems in the past (see #2517). A better solution might be to have the targets in OpenSearch core to build distribution neutral artifacts that can be used by the downstream steps in the build/packaging process without having to do extra work like extracting an RPM.

The specific question I have related to the proposed solution in #2571...since a downstream step needs to build an RPM anyway, should OpenSearch core have logic for building an RPM at all? opensearch-build needs to build an RPM in any case, so can we remove the RPM-building logic from core and instead just create the artifacts needed by opensearch-build.

[minalsha]

@bbarani , @peterzhuamazon thoughts on this?