public SimpleHttpSource httpSource() {
		return http(getContainerResolver().getContainerHostForSource());
	}
Create an instance of the http source with the target host resolved at runtime from the default stream name.
@return an instance of HttpSource configured with host and port of http module deployed at runtime.
spring-xd-integration-test/src/main/java/org/springframework/xd/integration/fixtures/Sources.java