pkg: reconcile prometheus-adapter ServiceMonitor

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>

pkg/manifests/manifests.go

@@ -133,6 +133,7 @@ var (
 	PrometheusAdapterDeployment                         = "assets/prometheus-adapter/deployment.yaml"
 	PrometheusAdapterRoleBindingAuthReader              = "assets/prometheus-adapter/role-binding-auth-reader.yaml"
 	PrometheusAdapterService                            = "assets/prometheus-adapter/service.yaml"
+	PrometheusAdapterServiceMonitor                     = "assets/prometheus-adapter/service-monitor.yaml"
 	PrometheusAdapterServiceAccount                     = "assets/prometheus-adapter/service-account.yaml"
 
 	PrometheusOperatorClusterRoleBinding    = "assets/prometheus-operator/cluster-role-binding.yaml"
@@ -1711,6 +1712,18 @@ func (f *Factory) PrometheusAdapterService() (*v1.Service, error) {
 	return s, nil
 }
 
+func (f *Factory) PrometheusAdapterServiceMonitor() (*monv1.ServiceMonitor, error) {
+	sm, err := f.NewServiceMonitor(MustAssetReader(PrometheusAdapterServiceMonitor))
+	if err != nil {
+		return nil, err
+	}
+
+	sm.Namespace = f.namespace
+	sm.Spec.Endpoints[0].TLSConfig.ServerName = fmt.Sprintf("prometheus-adapter.%s.svc", f.namespace)
+
+	return sm, nil
+}
+
 func (f *Factory) PrometheusAdapterSecret(tlsSecret *v1.Secret, apiAuthConfigmap *v1.ConfigMap) (*v1.Secret, error) {
 	data := make(map[string]string)
 

pkg/tasks/prometheusadapter.go

@@ -181,6 +181,17 @@ func (t *PrometheusAdapterTask) Run() error {
 			return errors.Wrap(err, "reconciling PrometheusAdapter Deployment failed")
 		}
 	}
+	{
+		sm, err := t.factory.PrometheusAdapterServiceMonitor()
+		if err != nil {
+			return errors.Wrap(err, "initializing PrometheusAdapter ServiceMonitor failed")
+		}
+
+		err = t.client.CreateOrUpdateServiceMonitor(sm)
+		if err != nil {
+			return errors.Wrap(err, "reconciling PrometheusAdapter ServiceMonitor failed")
+		}
+	}
 	{
 		api, err := t.factory.PrometheusAdapterAPIService()
 		if err != nil {