[MD] Client Management Epic

[zhongnansu]

Research & POC

• [PoC] Efficient client management to support multiple OpenSearch clusters #1499
• [MD]Research on opensearch_service.ts and client management to determine the connection strategy to support multiple datasource #1721
• Research on failed visualization types and saved searches in Dashboards #2004

Design

• [MD] Client Management design

Implementation Plan

• [MD]Add client connection in data source plugin #1971
  • [MD] Register getClient interface from data_source plugin to request context as plugin context #1979
  • [MD] Create datasource service in data source plugin #1980
  • Register opensearch data service to core context #1987
  • [MD] Document new APIs for core -> opensearch data service #2005
  • [MD] implement compatibility check for opensearch data sources #2008
• Create data source client module (to epic) #1981
  • Datasource client lifecycle management #1982
  • Integrate Datasource client with credential manager to decrypt  #1983
  • integrate with saved object service/client to retrieve data source info #1984
  • Integrate global config to data source client module #1985
  • [MD]Client management further optimization #2006
  • [MD] support ClientOptions when build data source clients #2009
• Register opensearch data service to core context #1987
• Refactor data plugin -> search related logic  #1988
  • refactor low level search API opensearch search strategy to be able to switch between data source client and default clients #1991
  • refactor high level search API search source to consume datasource info #1992
• Integrations
  • Onboard Discover and search embeddable to support multi datasource #1989
  • Onboard non index-pattern based visualization types to multiple datasource #1990
• [MD] Logging and Auditing #1986
• [MD]Add support for opensearch legacy client for data source #2133

[zhongnansu]

close as the most goals are met