feat: add cross-origin reporting for telemetry in the dashboard (#13612)

* feat: add cross-origin reporting for telemetry in the dashboard

* Respect the telemetry flag

* Fix embedded metadata

* Fix compilation error

* Fix linting

coderd/apidoc/docs.go

@@ -8351,6 +8351,10 @@ const docTemplate = `{
                     "description": "ExternalURL references the current Coder version.\nFor production builds, this will link directly to a release. For development builds, this will link to a commit.",
                     "type": "string"
                 },
+                "telemetry": {
+                    "description": "Telemetry is a boolean that indicates whether telemetry is enabled.",
+                    "type": "boolean"
+                },
                 "upgrade_message": {
                     "description": "UpgradeMessage is the message displayed to users when an outdated client\nis detected.",
                     "type": "string"

coderd/apidoc/swagger.json

@@ -7430,6 +7430,10 @@
           "description": "ExternalURL references the current Coder version.\nFor production builds, this will link directly to a release. For development builds, this will link to a commit.",
           "type": "string"
         },
+        "telemetry": {
+          "description": "Telemetry is a boolean that indicates whether telemetry is enabled.",
+          "type": "boolean"
+        },
         "upgrade_message": {
           "description": "UpgradeMessage is the message displayed to users when an outdated client\nis detected.",
           "type": "string"

coderd/coderd.go

@@ -447,6 +447,7 @@ func New(options *Options) *API {
 		WorkspaceProxy:  false,
 		UpgradeMessage:  api.DeploymentValues.CLIUpgradeMessage.String(),
 		DeploymentID:    api.DeploymentID,
+		Telemetry:       api.Telemetry.Enabled(),
 	}
 	api.SiteHandler = site.New(&site.Options{
 		BinFS:             binFS,

coderd/telemetry/telemetry.go

@@ -93,6 +93,7 @@ type Reporter interface {
 	// database. For example, if a new user is added, a snapshot can
 	// contain just that user entry.
 	Report(snapshot *Snapshot)
+	Enabled() bool
 	Close()
 }
 
@@ -109,6 +110,10 @@ type remoteReporter struct {
 	shutdownAt *time.Time
 }
 
+func (*remoteReporter) Enabled() bool {
+	return true
+}
+
 func (r *remoteReporter) Report(snapshot *Snapshot) {
 	go r.reportSync(snapshot)
 }
@@ -948,4 +953,5 @@ type ExternalProvisioner struct {
 type noopReporter struct{}
 
 func (*noopReporter) Report(_ *Snapshot) {}
+func (*noopReporter) Enabled() bool      { return false }
 func (*noopReporter) Close()             {}