The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/c19c222820aab9f9f058559980b9d1d55170fc58

commit c19c222820aab9f9f058559980b9d1d55170fc58
Author: Aviv Keshet <akeshet@chromium.org>
Date: Tue Dec 04 23:24:02 2018

qscheduler: add a List method to list all scheduler ids

BUG= chromium:911731 
TEST=unit test added

Change-Id: I9878d17394b0094309f9f253a032396c5bf52076
Reviewed-on: https://chromium-review.googlesource.com/c/1361665
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
Auto-Submit: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#19346}
[add] https://crrev.com/c19c222820aab9f9f058559980b9d1d55170fc58/go/src/infra/appengine/qscheduler-swarming/app/entities/entities_test.go
[modify] https://crrev.com/c19c222820aab9f9f058559980b9d1d55170fc58/go/src/infra/appengine/qscheduler-swarming/app/entities/entities.go

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/268a5939b2397058c4e936400f663d279ad73e8c

commit 268a5939b2397058c4e936400f663d279ad73e8c
Author: Aviv Keshet <akeshet@chromium.org>
Date: Wed Dec 05 01:07:26 2018

qscheduler: add a cronjob to refresh schedulers in the background

BUG= chromium:911731 
TEST=testing in local dev instance

Change-Id: Ie55c60dd7a0e9f2c9b46457aa7907f9f0613f656
Reviewed-on: https://chromium-review.googlesource.com/c/1361672
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#19350}
[add] https://crrev.com/268a5939b2397058c4e936400f663d279ad73e8c/go/src/infra/appengine/qscheduler-swarming/app/cron/cron.go
[modify] https://crrev.com/268a5939b2397058c4e936400f663d279ad73e8c/go/src/infra/appengine/qscheduler-swarming/app/appengine/handlers.go
[modify] https://crrev.com/268a5939b2397058c4e936400f663d279ad73e8c/go/src/infra/appengine/qscheduler-swarming/app/appengine/cron.yaml