Feat: Sample Sentries in the Engine (#1209)

* feat: sample sentries in the engine

* set sample rate via env var

* fix: propagate sample rate through config

* fix: bind env

pkg/config/loader/loader.go

@@ -334,6 +334,7 @@ func createControllerLayer(dc *database.Layer, cf *server.ServerConfigFile, vers
 		alerter, err = sentry.NewSentryAlerter(&sentry.SentryAlerterOpts{
 			DSN:         cf.Alerting.Sentry.DSN,
 			Environment: cf.Alerting.Sentry.Environment,
+			SampleRate:  cf.Alerting.Sentry.SampleRate,
 		})
 
 		if err != nil {

pkg/config/server/server.go

@@ -218,6 +218,9 @@ type SentryConfigFile struct {
 
 	// Environment is the environment that the instance is running in
 	Environment string `mapstructure:"environment" json:"environment,omitempty" default:"development"`
+
+	// Sample rate is the rate at which to sample events. Default is 1.0 to sample all events.
+	SampleRate float64 `mapstructure:"sampleRate" json:"sampleRate,omitempty" default:"1.0"`
 }
 
 type AnalyticsConfigFile struct {
@@ -555,6 +558,7 @@ func BindAllEnv(v *viper.Viper) {
 	_ = v.BindEnv("alerting.sentry.enabled", "SERVER_ALERTING_SENTRY_ENABLED")
 	_ = v.BindEnv("alerting.sentry.dsn", "SERVER_ALERTING_SENTRY_DSN")
 	_ = v.BindEnv("alerting.sentry.environment", "SERVER_ALERTING_SENTRY_ENVIRONMENT")
+	_ = v.BindEnv("alerting.sentry.sampleRate", "SERVER_ALERTING_SENTRY_SAMPLE_RATE")
 
 	// analytics options
 	_ = v.BindEnv("analytics.posthog.enabled", "SERVER_ANALYTICS_POSTHOG_ENABLED")

pkg/errors/sentry/sentry.go

@@ -18,6 +18,7 @@ func noIntegrations(ints []sentry.Integration) []sentry.Integration {
 type SentryAlerterOpts struct {
 	DSN         string
 	Environment string
+	SampleRate  float64
 }
 
 func NewSentryAlerter(opts *SentryAlerterOpts) (*SentryAlerter, error) {
@@ -26,7 +27,9 @@ func NewSentryAlerter(opts *SentryAlerterOpts) (*SentryAlerter, error) {
 		AttachStacktrace: true,
 		Integrations:     noIntegrations,
 		Environment:      opts.Environment,
+		SampleRate:       opts.SampleRate,
 	})
+
 	if err != nil {
 		return nil, err
 	}