change issuer settings of irsa_controller for eks mode

internal/issuer/issuer.go

@@ -16,6 +16,13 @@ type S3IssuerMeta struct {
 	bucketName string
 }
 
+func NewOIDCIssuerMeta(i *irsav1alpha1.IRSASetup) (OIDCIssuerMeta, error) {
+	if i.Spec.Mode == irsav1alpha1.ModeEks {
+		return newIamOIDCProviderIssuerMeta(i.Spec.IamOIDCProvider)
+	}
+	return NewS3IssuerMeta(&i.Spec.Discovery.S3)
+}
+
 func NewS3IssuerMeta(s3 *irsav1alpha1.S3Discovery) (*S3IssuerMeta, error) {
 	region := s3.Region
 	bucketName := s3.BucketName
@@ -32,6 +39,24 @@ func (i *S3IssuerMeta) IssuerHostPath() string {
 // IssuerUrl constructs the URL path for the OIDC issuer based on the provided AWS region and bucket name.
 // This utility function generates the expected host path for accessing the OIDC configuration stored in an S3 bucket.
 func (i *S3IssuerMeta) IssuerUrl() string {
-	return fmt.Sprintf("https://%s", i.
-		IssuerHostPath())
+	return fmt.Sprintf("https://%s", i.IssuerHostPath())
+}
+
+func newIamOIDCProviderIssuerMeta(providerName string) (*iamOIDCProviderIssuerMeta, error) {
+	if providerName == "" {
+		return nil, fmt.Errorf("IAM OIDC Provider Name must not be empty")
+	}
+	return &iamOIDCProviderIssuerMeta{providerName}, nil
+}
+
+type iamOIDCProviderIssuerMeta struct {
+	providerName string
+}
+
+func (i *iamOIDCProviderIssuerMeta) IssuerHostPath() string {
+	return i.providerName
+}
+
+func (i *iamOIDCProviderIssuerMeta) IssuerUrl() string {
+	return fmt.Sprintf("https://%s", i.IssuerHostPath())
 }