[AMBARI-15373] Provide composite Kerberos Descriptor via the REST API

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.4.0
• Component/s: ambari-server
• Labels: kerberos_descriptor rest_api
• Assignee: Robert Levas
• Reporter: Robert Levas
• Created: 10/Mar/16 15:50
• Updated: 14/Mar/16 20:58
• Resolved: 14/Mar/16 18:34

Description

Provide an entry point in the REST API to retrieve the composite Kerberos descriptor. This includes the default Kerberos descriptor built from the stack definitions overlaid with the (potentially sparse) Kerberos descriptor stored as an artifact of the cluster.

The entry point should be a read-only sub-resource of "clusters", and should only be made available if asked for explicitly due to the size of the data that will be returned.

Example API call

GET /api/v1/clusters/:cluster_name/kerberos_descriptors/COMPOSITE

Note: Kerberos Descriptors available via this interface are:

• STACK - the default Kerberos Descriptor from the relevant stack definition
• USER - the user-suppled updates to the stack default Kerberos Descriptor
• COMPOSITE - the stack default Kerberos Descriptor with the user-suppled updates applied (this is the Kerberos Descriptor used when performing Kerberos-related operations)

Issue Links

• links to: ReviewBoard