e2e: Add tests for components metrics verification

Signed-off-by: Suraj Deshmukh <suraj@kinvolk.io>

test/monitoring/components_metrics_test.go

@@ -31,34 +31,62 @@ func testComponentsPrometheusMetrics(t *testing.T, v1api v1.API) {
 	testCases := []struct {
 		componentName string
 		query         string
+		platforms     map[string]interface{}
 	}{
 		{
 			componentName: "kube-apiserver",
 			query:         "apiserver_request_total",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "coredns",
 			query:         "coredns_build_info",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "kube-scheduler",
 			query:         "scheduler_schedule_attempts_total",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "kube-controller-manager",
 			query:         "workqueue_work_duration_seconds_bucket",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "kube-proxy",
 			query:         "kubeproxy_sync_proxy_rules_duration_seconds_bucket",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "kubelet",
 			query:         "kubelet_running_pod_count",
+			platforms:     map[string]interface{}{"*": nil},
 		},
 		{
 			componentName: "calico-felix",
 			query:         "felix_active_local_endpoints",
+			platforms:     map[string]interface{}{"*": nil},
+		},
+		{
+			componentName: "metallb",
+			query:         "metallb_bgp_session_up",
+			platforms:     map[string]interface{}{"packet": nil},
+		},
+		{
+			componentName: "contour",
+			query:         "contour_dagrebuild_timestamp",
+			platforms:     map[string]interface{}{"aws": nil, "packet": nil},
+		},
+		{
+			componentName: "cert-manager",
+			query:         "certmanager_controller_sync_call_count",
+			platforms:     map[string]interface{}{"aws": nil, "packet": nil},
+		},
+		{
+			componentName: "external-dns",
+			query:         "",
+			platforms:     map[string]interface{}{"aws": nil, "packet": nil},
 		},
 	}