[autotest] Use ping to verify server exists when creating server in server db.
Devservers can't use reverse lookup to loopup the hostname with IP address.
BUG=chromium:444625
TEST=add devserver to server db.
Change-Id: I387dab27f77e18348413488d6dc4bd915b42cacc
Reviewed-on: https://chromium-review.googlesource.com/238430
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
Trybot-Ready: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
2 files changed