49 lines
849 B
Go
49 lines
849 B
Go
package system
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/coreos/coreos-cloudinit/config"
|
|
)
|
|
|
|
const DefaultIpv4Address = "127.0.0.1"
|
|
|
|
type EtcHosts struct {
|
|
Config config.EtcHosts
|
|
}
|
|
|
|
func (eh EtcHosts) generateEtcHosts() (out string, err error) {
|
|
if eh.Config != "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.Config == "" {
|
|
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
|
|
}
|