diff --git a/containers/Dockerfile b/containers/Dockerfile
index c7515e9d..e23a8e55 100644
--- a/containers/Dockerfile
+++ b/containers/Dockerfile
@@ -2,6 +2,9 @@ FROM python:3.12-slim-bookworm
 
 WORKDIR /app
 ENV PYTHONPATH='/app'
+# The service image runs behind an ingress. Direct deployments can override
+# this with their trusted proxy IPs or CIDRs.
+ENV FORWARDED_ALLOW_IPS='*'
 
 # Datadog labels
 LABEL com.datadoghq.tags.service="automation"