private List<String> getAvailableContainerIds() {
		try {
			return zkConnection.getClient().getChildren().forPath(Paths.CONTAINERS);
		}
		catch (Exception e) {
			throw ZooKeeperUtils.wrapThrowable(e);
		}
	}
Get all the available containers' ids.

@return the list of all available containers' ids.
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/module/store/ZooKeeperModuleMetadataRepository.java