ceph-csi/pkg/cephfs/volumeoptions.go

76 lines
1.8 KiB
Go

/*
Copyright 2018 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cephfs
import (
"errors"
"fmt"
)
type volumeOptions struct {
Monitors string `json:"monitors"`
RootPath string `json:"rootPath"`
User string `json:"user"`
Mounter string `json:"mounter"`
}
func extractOption(dest *string, optionLabel string, options map[string]string) error {
if opt, ok := options[optionLabel]; !ok {
return errors.New("Missing required parameter " + optionLabel)
} else {
*dest = opt
return nil
}
}
func validateMounter(m string) error {
switch m {
case volumeMounter_fuse:
case volumeMounter_kernel:
default:
return fmt.Errorf("Unknown mounter '%s'. Valid options are 'fuse' and 'kernel'", m)
}
return nil
}
func newVolumeOptions(volOptions map[string]string) (*volumeOptions, error) {
var opts volumeOptions
if err := extractOption(&opts.Monitors, "monitors", volOptions); err != nil {
return nil, err
}
if err := extractOption(&opts.RootPath, "rootPath", volOptions); err != nil {
return nil, err
}
if err := extractOption(&opts.User, "user", volOptions); err != nil {
return nil, err
}
if err := extractOption(&opts.Mounter, "mounter", volOptions); err != nil {
return nil, err
}
if err := validateMounter(opts.Mounter); err != nil {
return nil, err
}
return &opts, nil
}