// FinishInstanceConfig sets fields on a InstanceConfig that can be determined by
// inspecting a plain config.Config and the machine constraints at the last
// moment before bootstrapping. It assumes that the supplied Config comes from
// an environment that has passed through all the validation checks in the
// Bootstrap func, and that has set an agent-version (via finding the tools to,
// use for bootstrap, or otherwise).
// TODO(fwereade) This function is not meant to be "good" in any serious way:
// it is better that this functionality be collected in one place here than
// that it be spread out across 3 or 4 providers, but this is its only
// redeeming feature.
func FinishInstanceConfig(icfg *InstanceConfig, cfg *config.Config) (err error) {
defer errors.DeferredAnnotatef(&err, "cannot complete machine configuration")
if err := PopulateInstanceConfig(
icfg,
cfg.Type(),
cfg.AuthorizedKeys(),
cfg.SSLHostnameVerification(),
cfg.ProxySettings(),
cfg.AptProxySettings(),
cfg.AptMirror(),
cfg.PreferIPv6(),
cfg.EnableOSRefreshUpdate(),
cfg.EnableOSUpgrade(),
); err != nil {
return errors.Trace(err)
}
if isStateInstanceConfig(icfg) {
// Add NUMACTL preference. Needed to work for both bootstrap and high availability
// Only makes sense for controller
logger.Debugf("Setting numa ctl preference to %v", cfg.NumaCtlPreference())
// Unfortunately, AgentEnvironment can only take strings as values
icfg.AgentEnvironment[agent.NumaCtlPreference] = fmt.Sprintf("%v", cfg.NumaCtlPreference())
}
// The following settings are only appropriate at bootstrap time. At the
// moment, the only controller is the bootstrap node, but this
// will probably change.
if !icfg.Bootstrap {
return nil
}
if icfg.APIInfo != nil || icfg.MongoInfo != nil {
return errors.New("machine configuration already has api/state info")
}
caCert, hasCACert := cfg.CACert()
if !hasCACert {
return errors.New("model configuration has no ca-cert")
}
password := cfg.AdminSecret()
if password == "" {
return errors.New("model configuration has no admin-secret")
}
icfg.APIInfo = &api.Info{
Password: password,
CACert: caCert,
ModelTag: names.NewModelTag(cfg.UUID()),
}
icfg.MongoInfo = &mongo.MongoInfo{Password: password, Info: mongo.Info{CACert: caCert}}
// These really are directly relevant to running a controller.
// Initially, generate a controller certificate with no host IP
// addresses in the SAN field. Once the controller is up and the
// NIC addresses become known, the certificate can be regenerated.
cert, key, err := cfg.GenerateControllerCertAndKey(nil)
if err != nil {
return errors.Annotate(err, "cannot generate controller certificate")
}
caPrivateKey, hasCAPrivateKey := cfg.CAPrivateKey()
if !hasCAPrivateKey {
return errors.New("model configuration has no ca-private-key")
}
srvInfo := params.StateServingInfo{
StatePort: cfg.StatePort(),
APIPort: cfg.APIPort(),
Cert: string(cert),
PrivateKey: string(key),
CAPrivateKey: caPrivateKey,
}
icfg.StateServingInfo = &srvInfo
if icfg.Config, err = bootstrapConfig(cfg); err != nil {
return errors.Trace(err)
}
return nil
}