Robert Levas created AMBARI-7985:
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Summary: Allow for server-side commands
Key: AMBARI-7985
URL: https://issues.apache.org/jira/browse/AMBARI-7985
Project: Ambari
Issue Type: New Feature
Components: ambari-server
Affects Versions: 2.0.0
Reporter: Robert Levas
Assignee: Robert Levas
Fix For: 2.0.0
Ambari currently handles _client-/agent-side_ commands; however there is no
ability to handle _server-side_ commands. Server-side commands should be
specified as a task in a stage and managed along with the stage.
*Use Case:* Generate principals and keytabs on the Ambari server before
sending the keytabs to their relevant hosts.
*Implementation:* To addthe concept of a server-side task:
* update {{org.apache.ambari.server.serveraction.ServerAction}} to be an
_abstract class_
** _server-side_ tasks must implement this class
* reuse existing _host_role_command_ and _execution_command_ data
** _server-side_ tasks are to have a role of {{AMBARI_SERVER_ACTION}}
** _server-side_ execution command data should be encapsulated as JSON and
specify the ServerAction implementation class and any needed payload data
* {{org.apache.ambari.server.actionmanager.ActionScheduler}} and
{{org.apache.ambari.server.serveraction.ServerActionManagerImpl}} need to be
updated to handle the execution of server-side tasks
** each _server-side_ task should be executed in its own thread.
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