cloudguestregistryauth is only expected to work for PAYG

The tool is also installed for BYOS images, and users can register the
system against the cloud registry, but this is not mandatory, so ignore
the errors in such a case. (bsc#1233630)

mgradm/shared/podman/podman.go

@@ -356,8 +356,12 @@ func Upgrade(
 	hubXmlrpcFlags adm_utils.HubXmlrpcFlags,
 	salineFlags adm_utils.SalineFlags,
 ) error {
-	if err := CallCloudGuestRegistryAuth(); err != nil {
-		return err
+	// Calling cloudguestregistryauth only makes sense if using the cloud provider registry.
+	// This check assumes users won't use custom registries that are not the cloud provider one on a cloud image.
+	if !strings.HasPrefix(registry, "registry.suse.com") {
+		if err := CallCloudGuestRegistryAuth(); err != nil {
+			return err
+		}
 	}
 
 	serverImage, err := utils.ComputeImage(registry, utils.DefaultTag, image)
@@ -526,13 +530,26 @@ func CallCloudGuestRegistryAuth() error {
 
 	path, err := exec.LookPath(cloudguestregistryauth)
 	if err == nil {
-		// the binary is installed
-		return utils.RunCmdStdMapping(zerolog.DebugLevel, path)
+		if err := utils.RunCmdStdMapping(zerolog.DebugLevel, path); err != nil && isPAYG() {
+			// Not being registered against the cloud registry is  not an error on BYOS.
+			return err
+		} else if err != nil {
+			log.Info().Msg(L("The above error is only relevant if using a public cloud provider registry"))
+		}
 	}
 	// silently ignore error if it is missing
 	return nil
 }
 
+func isPAYG() bool {
+	flavorCheckPath := "/usr/bin/instance-flavor-check"
+	if utils.FileExists(flavorCheckPath) {
+		out, _ := utils.RunCmdOutput(zerolog.DebugLevel, flavorCheckPath)
+		return strings.TrimSpace(string(out)) == "PAYG"
+	}
+	return false
+}
+
 // GetMountPoint return folder where a given volume is mounted.
 func GetMountPoint(volumeName string) (string, error) {
 	args := []string{"volume", "inspect", "--format", "{{.Mountpoint}}", volumeName}

uyuni-tools.changes.cbosdo.byos-fix

@@ -0,0 +1 @@
+- Only raise an error if cloudguestregistryauth fails for PAYG (bsc#1233630)