add compose

config/runtime.exs

@@ -21,7 +21,17 @@ config :logger, level: logger_level
 
 config :logger, :console, format: {Logger.Formatter, :format}
 
-if amqp_url = System.get_env("AMQP_URL") do
+rabbitmq_host = System.get_env("RABBITMQ_HOST", "localhost")
+rabbitmq_vhost = System.get_env("RABBITMQ_VHOST", "/")
+rabbitmq_username = System.get_env("RABBITMQ_USERNAME")
+rabbitmq_password = System.get_env("RABBITMQ_PASSWORD")
+
+amqp_url =
+  if rabbitmq_username && rabbitmq_password do
+    "amqp://#{rabbitmq_username}:#{rabbitmq_password}@#{rabbitmq_host}/#{rabbitmq_vhost}"
+  end
+
+if amqp_url do
   config :policy_service, :amqp_url, amqp_url
 end