func runConfig(config *cloudinit.CloudConfig) error {
f, err := ioutil.TempFile("", "rackspace-cloudinit-")
if err != nil {
return err
}
log.Println("writing to:", f.Name())
_, err = f.WriteString(config.String())
if err != nil {
return err
}
// systemd-run coreos-cloudinit --file f.Name()
props := []dbus.Property{
dbus.PropDescription("Unit generated and executed by coreos-cloudinit on behalf of user"),
dbus.PropExecStart([]string{"/usr/bin/coreos-cloudinit", "--from-file", f.Name()}, false),
}
tmp_file := filepath.Base(f.Name())
name := fmt.Sprintf("%s.service", tmp_file)
log.Printf("Creating transient systemd unit '%s'", name)
conn, err := dbus.New()
if err != nil {
return err
}
_, err = conn.StartTransientUnit(name, "replace", props...)
return err
}
func handleHostname(contents string, scripts_dir string) (*cloudinit.CloudConfig, error) {
config := cloudinit.CloudConfig{}
hostname := contents
// HOSTNAME="polvi-test"
re := regexp.MustCompile("HOSTNAME=\"(.+)\"")
keys := re.FindStringSubmatch(hostname)
if len(keys) == 2 {
hostname := keys[1]
config.Hostname = hostname
}
return &config, nil
}
// config.SSHAuthorizedKeys sets the "core" user, the other sets the root
func setKey(config *cloudinit.CloudConfig, key string) *cloudinit.CloudConfig {
config.SSHAuthorizedKeys = append(config.SSHAuthorizedKeys, key)
// set the password for both users
if len(config.Users) == 0 {
root := cloudinit.User{
Name: "root",
}
root.SSHAuthorizedKeys = append(root.SSHAuthorizedKeys, key)
config.Users = append(config.Users, root)
} else {
config.Users[0].SSHAuthorizedKeys = append(config.Users[0].SSHAuthorizedKeys, key)
}
return config
}
func handleShadow(contents string, scripts_dir string) (*cloudinit.CloudConfig, error) {
config := cloudinit.CloudConfig{}
passwd := contents
// root:$1$NyBnu0Gl$GBoj9u6lx3R8nyqHuxPwz/:15839:0:::::
re := regexp.MustCompile("root:([^:]+):.+\n")
keys := re.FindStringSubmatch(passwd)
if len(keys) == 2 {
passwd_hash := keys[1]
// set the password for both users
root := cloudinit.User{
Name: "root",
PasswordHash: passwd_hash,
}
config.Users = append(config.Users, root)
core := cloudinit.User{
Name: "core",
PasswordHash: passwd_hash,
}
config.Users = append(config.Users, core)
}
return &config, nil
}