refactor oidcMeta/fix irsa controller

internal/issuer/issuer.go

@@ -0,0 +1,32 @@
+package issuer
+
+import (
+	"fmt"
+
+	irsav1alpha1 "github.com/kkb0318/irsa-manager/api/v1alpha1"
+)
+
+type OIDCIssuerMeta interface {
+	IssuerHostPath() string
+	IssuerUrl() string
+}
+
+type S3IssuerMeta struct {
+	region     string
+	bucketName string
+}
+
+func NewS3IssuerMeta(s3 irsav1alpha1.S3Discovery) *S3IssuerMeta {
+	return &S3IssuerMeta{s3.Region, s3.BucketName}
+}
+
+func (i *S3IssuerMeta) IssuerHostPath() string {
+	return fmt.Sprintf("s3-%s.amazonaws.com/%s", i.region, i.bucketName)
+}
+
+// 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())
+}