add more config option documentation

extensions/search/pkg/config/debug.go

@@ -5,5 +5,5 @@ type Debug struct {
 	Addr   string `ocisConfig:"addr" env:"SEARCH_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed."`
 	Token  string `ocisConfig:"token" env:"SEARCH_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint"`
 	Pprof  bool   `ocisConfig:"pprof" env:"SEARCH_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling"`
-	Zpages bool   `ocisConfig:"zpages" env:"SEARCH_DEBUG_ZPAGES" desc:"Enables zpages, which can  be used for collecting and viewing traces in-me"`
+	Zpages bool   `ocisConfig:"zpages" env:"SEARCH_DEBUG_ZPAGES" desc:"Enables zpages, which can  be used for collecting and viewing traces in-memory."`
 }

extensions/search/pkg/config/reva.go

@@ -2,5 +2,5 @@ package config
 
 // Reva defines all available REVA configuration.
 type Reva struct {
-	Address string `ocisConfig:"address" env:"REVA_GATEWAY"`
+	Address string `ocisConfig:"address" env:"REVA_GATEWAY" desc:"The CS3 gateway endpoint"`
 }

extensions/search/pkg/config/tracing.go

@@ -3,7 +3,7 @@ package config
 // Tracing defines the available tracing configuration.
 type Tracing struct {
 	Enabled   bool   `ocisConfig:"enabled" env:"OCIS_TRACING_ENABLED;SEARCH_TRACING_ENABLED"`
-	Type      string `ocisConfig:"type" env:"OCIS_TRACING_TYPE;SEARCH_TRACING_TYPE"`
+	Type      string `ocisConfig:"type" env:"OCIS_TRACING_TYPE;SEARCH_TRACING_TYPE" desc:"The type of tracing. Defaults to \"\", which is the same as \"jaeger\". Allowed tracing types are \"jaeger\" and \"\" as of now."`
 	Endpoint  string `ocisConfig:"endpoint" env:"OCIS_TRACING_ENDPOINT;SEARCH_TRACING_ENDPOINT"`
 	Collector string `ocisConfig:"collector" env:"OCIS_TRACING_COLLECTOR;SEARCH_TRACING_COLLECTOR"`
 }