Logging: rate limit fronted logging endpoint (#29272)

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

pkg/setting/setting_sentry.go

@@ -5,6 +5,8 @@ type Sentry struct {
 	DSN            string  `json:"dsn"`
 	CustomEndpoint string  `json:"customEndpoint"`
 	SampleRate     float64 `json:"sampleRate"`
+	EndpointRPS    int     `json:"-"`
+	EndpointBurst  int     `json:"-"`
 }
 
 func (cfg *Cfg) readSentryConfig() {
@@ -14,5 +16,7 @@ func (cfg *Cfg) readSentryConfig() {
 		DSN:            raw.Key("sentry_dsn").String(),
 		CustomEndpoint: raw.Key("custom_endpoint").String(),
 		SampleRate:     raw.Key("sample_rate").MustFloat64(),
+		EndpointRPS:    raw.Key("log_endpoint_requests_per_second_limit").MustInt(),
+		EndpointBurst:  raw.Key("log_endpoint_burst_limit").MustInt(),
 	}
 }