Gather architectures from k8s API

pkg/controller/operator.go

@@ -268,7 +268,7 @@ func (s *Operator) Run(ctx context.Context, controller *controllercmd.Controller
 		return fmt.Errorf("unable to set initial cluster status: %v", err)
 	}
 
-	scaController := sca.New(ctx, kubeClient.CoreV1(), configAggregator, insightsClient)
+	scaController := sca.New(ctx, kubeClient.CoreV1(), configAggregator, insightsClient, gatherProtoKubeConfig)
 	statusReporter.AddSources(scaController)
 	go scaController.Run()
 

pkg/ocm/sca/architectures_gather.go

@@ -0,0 +1,29 @@
+package sca
+
+import (
+	"context"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
+)
+
+func gatherArchitectures(ctx context.Context, protoConfig *rest.Config) (map[string]struct{}, error) {
+	gatherKubeClient, err := kubernetes.NewForConfig(protoConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	coreClient := gatherKubeClient.CoreV1()
+	nodes, err := coreClient.Nodes().List(ctx, metav1.ListOptions{})
+	if err != nil {
+		return nil, err
+	}
+
+	architectures := make(map[string]struct{})
+	for i := range nodes.Items {
+		nodeArch := nodes.Items[i].Status.NodeInfo.Architecture
+		architectures[nodeArch] = struct{}{}
+	}
+	return architectures, nil
+}

pkg/ocm/sca/sca.go

@@ -13,6 +13,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
 	corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
+	"k8s.io/client-go/rest"
 	"k8s.io/klog/v2"
 
 	"github.com/openshift/insights-operator/pkg/config/configobserver"
@@ -33,10 +34,11 @@ const (
 // Controller holds all the required resources to be able to communicate with OCM API
 type Controller struct {
 	controllerstatus.StatusController
-	coreClient   corev1client.CoreV1Interface
-	ctx          context.Context
-	configurator configobserver.Interface
-	client       *insightsclient.Client
+	coreClient            corev1client.CoreV1Interface
+	ctx                   context.Context
+	configurator          configobserver.Interface
+	client                *insightsclient.Client
+	gatherProtoKubeConfig *rest.Config
 }
 
 // Response structure is used to unmarshall the OCM SCA response. It holds the SCA certificate
@@ -49,13 +51,14 @@ type Response struct {
 
 // New creates new instance
 func New(ctx context.Context, coreClient corev1client.CoreV1Interface, configurator configobserver.Interface,
-	insightsClient *insightsclient.Client) *Controller {
+	insightsClient *insightsclient.Client, gatherProtoKubeConfig *rest.Config) *Controller {
 	return &Controller{
-		StatusController: controllerstatus.New(ControllerName),
-		coreClient:       coreClient,
-		ctx:              ctx,
-		configurator:     configurator,
-		client:           insightsClient,
+		StatusController:      controllerstatus.New(ControllerName),
+		coreClient:            coreClient,
+		ctx:                   ctx,
+		configurator:          configurator,
+		client:                insightsClient,
+		gatherProtoKubeConfig: gatherProtoKubeConfig,
 	}
 }
 
@@ -219,6 +222,11 @@ func (c *Controller) requestSCAWithExpBackoff(endpoint string) ([]byte, error) {
 	var data []byte
 	err := wait.ExponentialBackoff(bo, func() (bool, error) {
 		var err error
+		ctx := context.TODO()
+		_, err = gatherArchitectures(ctx, c.gatherProtoKubeConfig)
+		if err != nil {
+			return true, err
+		}
 		data, err = c.client.RecvSCACerts(c.ctx, endpoint)
 		if err != nil {
 			// don't try again in case it's not an HTTP error - it could mean we're in disconnected env

pkg/ocm/sca/sca_test.go

@@ -19,7 +19,7 @@ var (
 func Test_SCAController_SecretIsCreated(t *testing.T) {
 	kube := kubefake.NewSimpleClientset()
 	coreClient := kube.CoreV1()
-	scaController := New(context.TODO(), coreClient, nil, nil)
+	scaController := New(context.TODO(), coreClient, nil, nil, nil)
 
 	testRes := &Response{
 		Key:  "secret key",
@@ -52,7 +52,7 @@ func Test_SCAController_SecretIsUpdated(t *testing.T) {
 	}
 	_, err := coreClient.Secrets(targetNamespaceName).Create(context.Background(), existingSec, metav1.CreateOptions{})
 	assert.NoError(t, err)
-	scaController := New(context.TODO(), coreClient, nil, nil)
+	scaController := New(context.TODO(), coreClient, nil, nil, nil)
 	testRes := &Response{
 		Key:  "new secret testing key",
 		Cert: "new secret testing cert",