cloudinit/system/user.go
Alex Crawford acf93b4c45 Revert "Merge pull request #234 from crawford/validate"
This reverts commit cdfc94f4e9, reversing
changes made to 2051cd3e1c.

Conflicts:
	initialize/config.go
	system/etcd.go
	system/etcd_test.go
	system/fleet.go
	system/fleet_test.go
	system/update.go
	system/update_test.go
	test
2014-10-12 21:56:11 -07:00

111 lines
2.2 KiB
Go

package system
import (
"fmt"
"log"
"os/exec"
"os/user"
"strings"
)
type User struct {
Name string `yaml:"name"`
PasswordHash string `yaml:"passwd"`
SSHAuthorizedKeys []string `yaml:"ssh-authorized-keys"`
SSHImportGithubUser string `yaml:"coreos-ssh-import-github"`
SSHImportURL string `yaml:"coreos-ssh-import-url"`
GECOS string `yaml:"gecos"`
Homedir string `yaml:"homedir"`
NoCreateHome bool `yaml:"no-create-home"`
PrimaryGroup string `yaml:"primary-group"`
Groups []string `yaml:"groups"`
NoUserGroup bool `yaml:"no-user-group"`
System bool `yaml:"system"`
NoLogInit bool `yaml:"no-log-init"`
}
func UserExists(u *User) bool {
_, err := user.Lookup(u.Name)
return err == nil
}
func CreateUser(u *User) error {
args := []string{}
if u.PasswordHash != "" {
args = append(args, "--password", u.PasswordHash)
} else {
args = append(args, "--password", "*")
}
if u.GECOS != "" {
args = append(args, "--comment", fmt.Sprintf("%q", u.GECOS))
}
if u.Homedir != "" {
args = append(args, "--home-dir", u.Homedir)
}
if u.NoCreateHome {
args = append(args, "--no-create-home")
} else {
args = append(args, "--create-home")
}
if u.PrimaryGroup != "" {
args = append(args, "--gid", u.PrimaryGroup)
}
if len(u.Groups) > 0 {
args = append(args, "--groups", strings.Join(u.Groups, ","))
}
if u.NoUserGroup {
args = append(args, "--no-user-group")
}
if u.System {
args = append(args, "--system")
}
if u.NoLogInit {
args = append(args, "--no-log-init")
}
args = append(args, u.Name)
output, err := exec.Command("useradd", args...).CombinedOutput()
if err != nil {
log.Printf("Command 'useradd %s' failed: %v\n%s", strings.Join(args, " "), err, output)
}
return err
}
func SetUserPassword(user, hash string) error {
cmd := exec.Command("/usr/sbin/chpasswd", "-e")
stdin, err := cmd.StdinPipe()
if err != nil {
return err
}
err = cmd.Start()
if err != nil {
log.Fatal(err)
}
arg := fmt.Sprintf("%s:%s", user, hash)
_, err = stdin.Write([]byte(arg))
if err != nil {
return err
}
stdin.Close()
err = cmd.Wait()
if err != nil {
return err
}
return nil
}