Jeffrey Zhang d7495b1d39 Fix the prechecks role idempotent ...

the prechecks role should be idempotent and should changed nothing when
running.

TrivialFix

Change-Id: Ib5063d879e0f5f414d607bd9b6493a7499fc5652

2016-03-21 00:10:15 +08:00

..

tasks

Fix the prechecks role idempotent

2016-03-21 00:10:15 +08:00

vars

Fix the required min docker version

2016-02-09 13:20:35 +08:00