backport to 6.x - [test] port linux package packaging tests#32183

Merged

andyb-elastic merged 5 commits intoelastic:6.xfrom andyb-elastic:feature-java-package-1-backport-6.x

Jul 24, 2018

Commits on Jul 19, 2018

[test] port linux package packaging tests (elastic#31943 )
andyb-elastic
committed

Commits on Jul 20, 2018

expect that systemd service is not removed
andyb-elastic
committed

Commits on Jul 23, 2018

Merge branch '6.x' into feature-java-package-1-backport-6.x
andyb-elastic
committed

Commits on Jul 24, 2018