worker: factor out kojiServer struct

In order to match the config structure.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

cmd/osbuild-worker/main.go

@@ -37,6 +37,10 @@ type connectionConfig struct {
 	ClientCertFile string
 }
 
+type kojiServer struct {
+	creds koji.GSSAPICredentials
+}
+
 // Represents the implementation of a job type as defined by the worker API.
 type JobImplementation interface {
 	Run(job worker.Job) error
@@ -272,15 +276,17 @@ func main() {
 	output := path.Join(cacheDirectory, "output")
 	_ = os.Mkdir(output, os.ModeDir)
 
-	kojiServers := make(map[string]koji.GSSAPICredentials)
-	for server, creds := range config.Koji {
-		if creds.Kerberos == nil {
+	kojiServers := make(map[string]kojiServer)
+	for server, kojiConfig := range config.Koji {
+		if kojiConfig.Kerberos == nil {
 			// For now we only support Kerberos authentication.
 			continue
 		}
-		kojiServers[server] = koji.GSSAPICredentials{
-			Principal: creds.Kerberos.Principal,
-			KeyTab:    creds.Kerberos.KeyTab,
+		kojiServers[server] = kojiServer{
+			creds: koji.GSSAPICredentials{
+				Principal: kojiConfig.Kerberos.Principal,
+				KeyTab:    kojiConfig.Kerberos.KeyTab,
+			},
 		}
 	}