Drone Queen AppEngine Service

See the design doc.

Drone queen and drone agent contract

See the design doc.

Setting up new drone queen instance

Steps for setting up a new instance of drone queen:

1. Create new GCP project.
2. Deploy drone queen to App Engine.
3. Configure the LUCI config service at https:///admin/portal.
4. Add a LUCI config for your app to the LUCI config instance you configured above.
5. Enable the Pub/Sub API for your GCP project.
6. Configure the chrome-infra-auth service at https:///admin/portal.
7. Add your app's App Engine service account to auth service authorized groups.