Add support for s3fs disable_noobj_cache flag (#269)

Add disable_noobj_cache as allowed arg to supported s3fs args

Signed-off-by: Benjamin Isinger <[email protected]>

Author: isibeni

cos-csi-mounter/server/s3fs.go

@@ -17,6 +17,7 @@ type S3FSArgs struct {
 	CurlDebug               string `json:"curldbg,omitempty"`
 	DebugLevel              string `json:"dbglevel,omitempty"`
 	DefaultACL              string `json:"default_acl,omitempty"`
+	DisableNoobjCache       string `json:"disable_noobj_cache,omitempty"`
 	EndPoint                string `json:"endpoint,omitempty"`
 	GID                     string `json:"gid,omitempty"`
 	IBMIamAuth              string `json:"ibm_iam_auth,omitempty"`
@@ -124,6 +125,14 @@ func (args S3FSArgs) Validate(targetPath string) error {
 		return fmt.Errorf("invalid value for 'curldbg' param. Should be either 'body' or 'normal': %v", args.CurlDebug)
 	}
 
+	// Check if value of disable_noobj_cache is boolean "true" or "false"
+	if args.DisableNoobjCache != "" {
+		if isBool := isBoolString(args.DisableNoobjCache); !isBool {
+			logger.Error("cannot convert value of disable_noobj_cache into boolean", zap.Any("disable_noobj_cache", args.DisableNoobjCache))
+			return fmt.Errorf("cannot convert value of disable_noobj_cache into boolean: %v", args.DisableNoobjCache)
+		}
+	}
+
 	// Check if value of gid parameter can be converted to integer
 	if args.GID != "" {
 		_, err := strconv.Atoi(args.GID)