open-vault/changelog/14946.txt

```release-note:feature
**Secrets/auth plugin multiplexing**: manage multiple plugin configurations with a single plugin process
```
feature: secrets/auth plugin multiplexing (#14946) * enable registering backend muxed plugins in plugin catalog * set the sysview on the pluginconfig to allow enabling secrets/auth plugins * store backend instances in map * store single implementations in the instances map cleanup instance map and ensure we don't deadlock * fix system backend unit tests move GetMultiplexIDFromContext to pluginutil package fix pluginutil test fix dbplugin ut * return error(s) if we can't get the plugin client update comments * refactor/move GetMultiplexIDFromContext test * add changelog * remove unnecessary field on pluginClient * add unit tests to PluginCatalog for secrets/auth plugins * fix comment * return pluginClient from TestRunTestPlugin * add multiplexed backend test * honor metadatamode value in newbackend pluginconfig * check that connection exists on cleanup * add automtls to secrets/auth plugins * don't remove apiclientmeta parsing * use formatting directive for fmt.Errorf * fix ut: remove tls provider func * remove tlsproviderfunc from backend plugin tests * use env var to prevent test plugin from running as a unit test * WIP: remove lazy loading * move non lazy loaded backend to new package * use version wrapper for backend plugin factory * remove backendVersionWrapper type * implement getBackendPluginType for plugin catalog * handle backend plugin v4 registration * add plugin automtls env guard * modify plugin factory to determine the backend to use * remove old pluginsets from v5 and log pid in plugin catalog * add reload mechanism via context * readd v3 and v4 to pluginset * call cleanup from reload if non-muxed * move v5 backend code to new package * use context reload for for ErrPluginShutdown case * add wrapper on v5 backend * fix run config UTs * fix unit tests - use v4/v5 mapping for plugin versions - fix test build err - add reload method on fakePluginClient - add multiplexed cases for integration tests * remove comment and update AutoMTLS field in test * remove comment * remove errwrap and unused context * only support metadatamode false for v5 backend plugins * update plugin catalog errors * use const for env variables * rename locks and remove unused * remove unneeded nil check * improvements based on staticcheck recommendations * use const for single implementation string * use const for context key * use info default log level * move pid to pluginClient struct * remove v3 and v4 from multiplexed plugin set * return from reload when non-multiplexed * update automtls env string * combine getBackend and getBrokeredClient * update comments for plugin reload, Backend return val and log * revert Backend return type * allow non-muxed plugins to serve v5 * move v5 code to existing sdk plugin package * do next export sdk fields now that we have removed extra plugin pkg * set TLSProvider in ServeMultiplex for backwards compat * use bool to flag multiplexing support on grpc backend server * revert userpass main.go * refactor plugin sdk - update comments - make use of multiplexing boolean and single implementation ID const * update comment and use multierr * attempt v4 if dispense fails on getPluginTypeForUnknown * update comments on sdk plugin backend 2022-08-30 02:42:26 +00:00			```release-note:feature
			`Secrets/auth plugin multiplexing: manage multiple plugin configurations with a single plugin process`
			```