[YARN-7323] Data structure update in service REST API

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: yarn-native-services
• Target Version/s: yarn-native-services
• Hadoop Flags: Reviewed
• Assignee: Jian He
• Reporter: Jian He
• Created: 12/Oct/17 23:06
• Updated: 06/Nov/17 22:34
• Resolved: 17/Oct/17 21:14

Description

Changes include

• removed the functionality of creating default component if no component specified, this means we always expect user to specify a component.
• removed number_of_containers, launch_command, containers from the Service resource object, assuming that each Component has to
  specify these. resource and artifact in Service object will still remain as the default value for component.
• Added a ComponentState object.
• Changed the actionCreate to look for the example service from a secondary location.
• Fixed a bug in ComponentInstance to handle STOP event on INIT, in case container completed before it gets launched.