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I just got this setup in our environment and it's solving our needs perfectly!
I wanted to share a bit of setup that might be useful to others, but didn't want to open a PR until chatting about where it should go.
The situation: when running apps on Google Cloud, their load balancers/ingresses will provide client geocode information to your application so you don't have to do it yourself.
config/initializers/authtrail.rb
AuthTrail.geocode = false
AuthTrail.transform_method = lambda do |data, request|
data[:country] = request.headers['HTTP_X_CLIENT_REGION']
data[:region] = request.headers['HTTP_X_CLIENT_REGION_SUBDIVISION']
data[:city] = request.headers['HTTP_X_CLIENT_CITY']
if (value = request.headers['HTTP_X_CLIENT_CITY_LATLONG'])
lat, long = value.split(',').map(&:to_f)
data[:latitude] = lat
data[:longitude] = long
end
endWhen using Kubernetes, you get these headers by creating a BackendConfig and wiring it up to your Service
---
apiVersion: cloud.google.com/v1
kind: BackendConfig
metadata:
name: myapp-backend-beconf
labels:
app: myapp
tier: backend
spec:
customRequestHeaders:
headers:
- "X-Client-Region:{client_region}"
- "X-Client-Region-Subdivision:{client_region_subdivision}"
- "X-Client-City:{client_city}"
- "X-Client-City-LatLong:{client_city_lat_long}"
---
apiVersion: v1
kind: Service
metadata:
name: myapp-backend
labels:
app: myapp
tier: backend
annotations:
cloud.google.com/backend-config: '{"default": "myapp-backend-beconf"}'See https://cloud.google.com/load-balancing/docs/custom-headers#variables
Google puts the country code in the 'region' field, probably because of Hong Kong, Macau, Taiwan, Kosovo, etc...
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