63 lines
1.4 KiB
Go
63 lines
1.4 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 system
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/coreos/coreos-cloudinit/config"
|
|
)
|
|
|
|
const DefaultIpv4Address = "127.0.0.1"
|
|
|
|
type EtcHosts struct {
|
|
config.EtcHosts
|
|
}
|
|
|
|
func (eh EtcHosts) generateEtcHosts() (out string, err error) {
|
|
if eh.EtcHosts != "localhost" {
|
|
return "", errors.New("Invalid option to manage_etc_hosts")
|
|
}
|
|
|
|
// use the operating system hostname
|
|
hostname, err := os.Hostname()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname), nil
|
|
|
|
}
|
|
|
|
func (eh EtcHosts) File() (*File, error) {
|
|
if eh.EtcHosts == "" {
|
|
return nil, nil
|
|
}
|
|
|
|
etcHosts, err := eh.generateEtcHosts()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &File{config.File{
|
|
Path: path.Join("etc", "hosts"),
|
|
RawFilePermissions: "0644",
|
|
Content: etcHosts,
|
|
}}, nil
|
|
}
|