Gs Cache: nginx log metrics
In this change, we add a metric to monitor Nginx access log file for Gs
Cache service. It allow us to know what's the cache status, HIT/MISS
etc.
BUG=chromium:824580
TEST=Ran unit tests.
Change-Id: Ie4de6444f84700d053dd7a53a76955ce6d12d8b7
Reviewed-on: https://chromium-review.googlesource.com/1168399
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Congbin Guo <guocb@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
3 files changed
