cloudinit/datasource/file/file.go
Alex Crawford 3e47c09b41 datasource: replace metadata map with struct
The loosely-typed metadata map is a load of crap. Make it a struct and
let the compiler help us out.
2015-01-26 15:57:57 -08:00

60 lines
1.3 KiB
Go

// Copyright 2015 CoreOS, Inc.
//
// 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 file
import (
"io/ioutil"
"os"
"github.com/coreos/coreos-cloudinit/datasource"
)
type localFile struct {
path string
}
func NewDatasource(path string) *localFile {
return &localFile{path}
}
func (f *localFile) IsAvailable() bool {
_, err := os.Stat(f.path)
return !os.IsNotExist(err)
}
func (f *localFile) AvailabilityChanges() bool {
return true
}
func (f *localFile) ConfigRoot() string {
return ""
}
func (f *localFile) FetchMetadata() (datasource.Metadata, error) {
return datasource.Metadata{}, nil
}
func (f *localFile) FetchUserdata() ([]byte, error) {
return ioutil.ReadFile(f.path)
}
func (f *localFile) FetchNetworkConfig(filename string) ([]byte, error) {
return nil, nil
}
func (f *localFile) Type() string {
return "local-file"
}