code: @Bean
  	@ConditionalOnMissingBean(ZookeeperHealthIndicator.class)
  	@ConditionalOnBean(CuratorFramework.class)
  	@ConditionalOnEnabledHealthIndicator("zookeeper")
  	public ZookeeperHealthIndicator zookeeperHealthIndicator(CuratorFramework curator) {
  		return new ZookeeperHealthIndicator(curator);
  	}
docs: If there is an active curator, if the zookeeper health endpoint is enabled and if a
  health indicator hasn't already been added by a user add one.
  @param curator The curator connection to zookeeper to use
  @return An instance of {@link ZookeeperHealthIndicator} to add to actuator health
  report