Golang Config.APIPort方法代码示例

// FinishMachineConfig sets fields on a MachineConfig 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 FinishMachineConfig(mcfg *cloudinit.MachineConfig, cfg *config.Config, cons constraints.Value) (err error) {
	defer errors.Maskf(&err, "cannot complete machine configuration")

	if err := PopulateMachineConfig(
		mcfg,
		cfg.Type(),
		cfg.AuthorizedKeys(),
		cfg.SSLHostnameVerification(),
		cfg.ProxySettings(),
		cfg.AptProxySettings(),
	); err != nil {
		return err
	}

	// The following settings are only appropriate at bootstrap time. At the
	// moment, the only state server is the bootstrap node, but this
	// will probably change.
	if !mcfg.Bootstrap {
		return nil
	}
	if mcfg.APIInfo != nil || mcfg.StateInfo != nil {
		return fmt.Errorf("machine configuration already has api/state info")
	}
	caCert, hasCACert := cfg.CACert()
	if !hasCACert {
		return fmt.Errorf("environment configuration has no ca-cert")
	}
	password := cfg.AdminSecret()
	if password == "" {
		return fmt.Errorf("environment configuration has no admin-secret")
	}
	passwordHash := utils.UserPasswordHash(password, utils.CompatSalt)
	mcfg.APIInfo = &api.Info{Password: passwordHash, CACert: caCert}
	mcfg.StateInfo = &state.Info{Password: passwordHash, CACert: caCert}

	// These really are directly relevant to running a state server.
	cert, key, err := cfg.GenerateStateServerCertAndKey()
	if err != nil {
		return errgo.Annotate(err, "cannot generate state server certificate")
	}

	srvInfo := params.StateServingInfo{
		StatePort:      cfg.StatePort(),
		APIPort:        cfg.APIPort(),
		Cert:           string(cert),
		PrivateKey:     string(key),
		SystemIdentity: mcfg.SystemPrivateSSHKey,
	}
	mcfg.StateServingInfo = &srvInfo
	mcfg.Constraints = cons
	if mcfg.Config, err = BootstrapConfig(cfg); err != nil {
		return err
	}

	return nil
}

// getStateInfo puts together the state.Info and api.Info for the given
// config, with the given state-server host names.
// The given config absolutely must have a CACert.
func getStateInfo(config *config.Config, hostnames []string) (*state.Info, *api.Info) {
	cert, hasCert := config.CACert()
	if !hasCert {
		panic(errors.New("getStateInfo: config has no CACert"))
	}
	return &state.Info{
			Addrs:  composeAddresses(hostnames, config.StatePort()),
			CACert: cert,
		}, &api.Info{
			Addrs:  composeAddresses(hostnames, config.APIPort()),
			CACert: cert,
		}
}

// Prepare implements environs.EnvironProvider.Prepare.
func (p environProvider) Prepare(ctx environs.BootstrapContext, cfg *config.Config) (environs.Environ, error) {
	// The user must not set bootstrap-ip; this is determined by the provider,
	// and its presence used to determine whether the environment has yet been
	// bootstrapped.
	if _, ok := cfg.UnknownAttrs()["bootstrap-ip"]; ok {
		return nil, fmt.Errorf("bootstrap-ip must not be specified")
	}
	err := checkLocalPort(cfg.StatePort(), "state port")
	if err != nil {
		return nil, err
	}
	err = checkLocalPort(cfg.APIPort(), "API port")
	if err != nil {
		return nil, err
	}
	// If the user has specified no values for any of the three normal
	// proxies, then look in the environment and set them.
	attrs := map[string]interface{}{
		// We must not proxy SSH through the API server in a
		// local provider environment. Besides not being useful,
		// it may not work; there is no requirement for sshd to
		// be available on machine-0.
		"proxy-ssh": false,
	}
	setIfNotBlank := func(key, value string) {
		if value != "" {
			attrs[key] = value
		}
	}
	logger.Tracef("Look for proxies?")
	if cfg.HttpProxy() == "" &&
		cfg.HttpsProxy() == "" &&
		cfg.FtpProxy() == "" &&
		cfg.NoProxy() == "" {
		proxy := osenv.DetectProxies()
		logger.Tracef("Proxies detected %#v", proxy)
		setIfNotBlank("http-proxy", proxy.Http)
		setIfNotBlank("https-proxy", proxy.Https)
		setIfNotBlank("ftp-proxy", proxy.Ftp)
		setIfNotBlank("no-proxy", proxy.NoProxy)
	}
	if cfg.AptHttpProxy() == "" &&
		cfg.AptHttpsProxy() == "" &&
		cfg.AptFtpProxy() == "" {
		proxy, err := detectAptProxies()
		if err != nil {
			return nil, err
		}
		setIfNotBlank("apt-http-proxy", proxy.Http)
		setIfNotBlank("apt-https-proxy", proxy.Https)
		setIfNotBlank("apt-ftp-proxy", proxy.Ftp)
	}
	if len(attrs) > 0 {
		cfg, err = cfg.Apply(attrs)
		if err != nil {
			return nil, err
		}
	}

	return p.Open(cfg)
}