Cherry-pick #20146 to 7.x: [Elastic Agent] Add basic protocol to control Elastic Agent.#20278

Merged

blakerouse merged 1 commit intoelastic:7.xfrom blakerouse:backport_20146_7.x

Aug 3, 2020

+1,200-38

Commits on Jul 28, 2020

[Elastic Agent] Add basic protocol to control Elastic Agent. (elastic#20146 )
blakerouse
committed