Goal is to support auto-spawning of admin configured services during bootstrap of resourcemanager/apiserver.
Requirement: Some of the services might required to be consumed by yarn itself ex: Hbase for atsv2. Instead of depending on user installed HBase or sometimes user may not required to install HBase at all, in such conditions running HBase app on YARN will help for ATSv2.
Before YARN cluster is started, admin configure these services spec and place it in common location in HDFS. At the time of RM/apiServer bootstrap, these services will be submitted.