Cherry-pick #8845 to 6.x: add_cloud_metadata asynchronous initialization#10495

Merged

adriansr merged 1 commit intoelastic:6.xfrom adriansr:backport_8845_6.x

Feb 4, 2019

+35-12

Commits on Feb 1, 2019

add_cloud_metadata asynchronous initialization (elastic#8845 )
adriansr
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