Get secret for SM http client

internal/cluster-object/secret_provider.go

@@ -141,3 +141,18 @@ func (p *SecretProvider) secretExistsInList(secret *corev1.Secret, secrets *core
 	}
 	return false
 }
+
+func (p *SecretProvider) GetByNameAndNamespace(ctx context.Context, name, namespace string) (*corev1.Secret, error) {
+	p.logger.Info(fmt.Sprintf("fetching \"%s\" secret in \"%s\" namespace", name, namespace))
+	secret := &corev1.Secret{}
+	if err := p.Get(ctx, client.ObjectKey{Namespace: namespace, Name: name}, secret); err != nil {
+		if k8serrors.IsNotFound(err) {
+			p.logger.Warn(fmt.Sprintf("secret \"%s\" not found in \"%s\" namespace", name, namespace))
+			return nil, nil
+		}
+		p.logger.Error(fmt.Sprintf("failed to fetch \"%s\" secret in \"%s\" namespace", name, namespace), "error", err)
+		return nil, err
+	}
+
+	return secret, nil
+}

internal/service-manager/client.go

@@ -3,8 +3,10 @@ package servicemanager
 import (
 	"context"
 	"log/slog"
+	"net/http"
 
 	clusterobject "github.com/kyma-project/btp-manager/internal/cluster-object"
+	"golang.org/x/oauth2/clientcredentials"
 	corev1 "k8s.io/api/core/v1"
 )
 
@@ -14,6 +16,7 @@ type Client struct {
 	ctx            context.Context
 	logger         *slog.Logger
 	secretProvider clusterobject.NamespacedProvider[*corev1.Secret]
+	httpClient     *http.Client
 }
 
 func NewClient(ctx context.Context, logger *slog.Logger, secretProvider clusterobject.NamespacedProvider[*corev1.Secret]) *Client {
@@ -23,3 +26,18 @@ func NewClient(ctx context.Context, logger *slog.Logger, secretProvider clustero
 		secretProvider: secretProvider,
 	}
 }
+
+func (c *Client) getHttpClientForGivenSecret(ctx context.Context, secretName, secretNamespace string) (*http.Client, error) {
+	secret, err := c.secretProvider.GetByNameAndNamespace(ctx, secretName, secretNamespace)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg := clientcredentials.Config{
+		ClientID:     string(secret.Data["clientid"]),
+		ClientSecret: string(secret.Data["clientsecret"]),
+		TokenURL:     string(secret.Data["tokenurl"]),
+	}
+
+	return cfg.Client(ctx), nil
+}