@Bean
		@ConditionalOnExpression("'${zk.client.connect}'.isEmpty()")
		EmbeddedZooKeeper embeddedZooKeeper() {
			if (zkEmbeddedServerPort != null) {
				return new EmbeddedZooKeeper(zkEmbeddedServerPort);
			}
			else {
				return new EmbeddedZooKeeper();
			}
		}
Beans defined and imported here are shared by the XD Admin Server and Container Server.
@author David Turanski
@author Mark Fisher
@author Ilayaperumal Gopinathan
@author Gary Russell
@author Patrick Peralta
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/server/SharedServerContextConfiguration.java