Add environment variables for service name configurations

Author: Taucher2003

docker-compose/.env

@@ -77,10 +77,11 @@ OPENTELEMETRY_LOGS_HTTP_ENDPOINT=http://localhost:4318/v1/logs
 OPENTELEMETRY_METRICS_HTTP_ENDPOINT=http://localhost:4318/v1/metrics
 OPENTELEMETRY_TRACES_HTTP_ENDPOINT=http://localhost:4318/v1/traces
 
-# OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_WEB=sagittarius-web
-# OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_CABLE=sagittarius-cable
-# OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_GRPC=sagittarius-grpc
-# OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_BACKGROUND=sagittarius-background
+OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_WEB=sagittarius-web
+OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_CABLE=sagittarius-cable
+OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_GRPC=sagittarius-grpc
+OPENTELEMETRY_SERVICE_NAME_SAGITTARIUS_BACKGROUND=sagittarius-background
+OPENTELEMETRY_SERVICE_NAME_NGINX=nginx
 
 # Internal config options
 SAGITTARIUS_RAILS_HOST=sagittarius-rails-web