User analytics: Add Rudderstack integration (#36567)

* Replace analytics service with Echo backend

* Add Rudderstack integration and general pageview and interaction Echo events

* Update conf/defaults.ini

Co-authored-by: Dan Cech <dcech@grafana.com>

* Update packages/grafana-runtime/src/types/analytics.ts

Co-authored-by: Dan Cech <dcech@grafana.com>

* Update conf/defaults.ini

Co-authored-by: Dan Cech <dcech@grafana.com>

* Update tests

* Force cla check

Co-authored-by: Dan Cech <dcech@grafana.com>

pkg/api/frontendsettings.go

@@ -209,6 +209,8 @@ func (hs *HTTPServer) getFrontendSettingsMap(c *models.ReqContext) (map[string]i
 		"sigV4AuthEnabled":           setting.SigV4AuthEnabled,
 		"exploreEnabled":             setting.ExploreEnabled,
 		"googleAnalyticsId":          setting.GoogleAnalyticsId,
+		"rudderstackWriteKey":        setting.RudderstackWriteKey,
+		"rudderstackDataPlaneUrl":    setting.RudderstackDataPlaneUrl,
 		"disableLoginForm":           setting.DisableLoginForm,
 		"disableUserSignUp":          !setting.AllowUserSignUp,
 		"loginHint":                  setting.LoginHint,

pkg/setting/setting.go

@@ -148,8 +148,10 @@ var (
 	appliedEnvOverrides          []string
 
 	// analytics
-	GoogleAnalyticsId  string
-	GoogleTagManagerId string
+	GoogleAnalyticsId       string
+	GoogleTagManagerId      string
+	RudderstackDataPlaneUrl string
+	RudderstackWriteKey     string
 
 	// LDAP
 	LDAPEnabled           bool
@@ -894,6 +896,8 @@ func (cfg *Cfg) Load(args *CommandLineArgs) error {
 	cfg.CheckForUpdates = analytics.Key("check_for_updates").MustBool(true)
 	GoogleAnalyticsId = analytics.Key("google_analytics_ua_id").String()
 	GoogleTagManagerId = analytics.Key("google_tag_manager_id").String()
+	RudderstackWriteKey = analytics.Key("rudderstack_write_key").String()
+	RudderstackDataPlaneUrl = analytics.Key("rudderstack_data_plane_url").String()
 	cfg.ReportingEnabled = analytics.Key("reporting_enabled").MustBool(true)
 	cfg.ReportingDistributor = analytics.Key("reporting_distributor").MustString("grafana-labs")
 	if len(cfg.ReportingDistributor) >= 100 {