[7.x] [Ingest] Support yaml variables in datasource (#64459)#64733

Merged

nchaulet merged 1 commit intoelastic:7.xfrom nchaulet:backport/7.x/pr-64459

Apr 29, 2020

+125-42

Commits on Apr 29, 2020

[Ingest] Support yaml variables in datasource (elastic#64459 )
nchaulet
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