// PrepareForBootstrap implements environs.EnvironProvider.PrepareForBootstrap.
func (p environProvider) PrepareForBootstrap(ctx environs.BootstrapContext, cfg *config.Config) (environs.Environ, error) {
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,
}
if _, ok := cfg.AgentVersion(); !ok {
attrs["agent-version"] = version.Current.String()
}
if namespace, _ := cfg.UnknownAttrs()["namespace"].(string); namespace == "" {
username := os.Getenv("USER")
if username == "" {
u, err := userCurrent()
if err != nil {
return nil, errors.Annotate(err, "failed to determine username for namespace")
}
username = u.Username
}
attrs["namespace"] = fmt.Sprintf("%s-%s", username, cfg.Name())
}
setIfNotBlank := func(key, value string) {
if value != "" {
attrs[key] = value
}
}
// If the user has specified no values for any of the four normal
// proxies, then look in the environment and set them.
logger.Tracef("Look for proxies?")
if cfg.HttpProxy() == "" &&
cfg.HttpsProxy() == "" &&
cfg.FtpProxy() == "" &&
cfg.NoProxy() == "" {
proxySettings := proxy.DetectProxies()
logger.Tracef("Proxies detected %#v", proxySettings)
setIfNotBlank(config.HttpProxyKey, proxySettings.Http)
setIfNotBlank(config.HttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.FtpProxyKey, proxySettings.Ftp)
setIfNotBlank(config.NoProxyKey, proxySettings.NoProxy)
}
if jujuos.HostOS() == jujuos.Ubuntu {
if cfg.AptHttpProxy() == "" &&
cfg.AptHttpsProxy() == "" &&
cfg.AptFtpProxy() == "" {
proxySettings, err := detectPackageProxies()
if err != nil {
return nil, errors.Trace(err)
}
setIfNotBlank(config.AptHttpProxyKey, proxySettings.Http)
setIfNotBlank(config.AptHttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.AptFtpProxyKey, proxySettings.Ftp)
}
}
cfg, err := cfg.Apply(attrs)
if err != nil {
return nil, errors.Trace(err)
}
// Make sure everything is valid.
cfg, err = p.Validate(cfg, nil)
if err != nil {
return nil, errors.Trace(err)
}
// 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, errors.Errorf("bootstrap-ip must not be specified")
}
err = checkLocalPort(cfg.StatePort(), "state port")
if err != nil {
return nil, errors.Trace(err)
}
err = checkLocalPort(cfg.APIPort(), "API port")
if err != nil {
return nil, errors.Trace(err)
}
return p.Open(cfg)
}
// PrepareForCreateEnvironment is specified in the EnvironProvider interface.
func (p environProvider) PrepareForCreateEnvironment(cfg *config.Config) (*config.Config, error) {
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,
}
if _, ok := cfg.AgentVersion(); !ok {
attrs["agent-version"] = version.Current.Number.String()
}
if namespace, _ := cfg.UnknownAttrs()["namespace"].(string); namespace == "" {
username := os.Getenv("USER")
if username == "" {
u, err := userCurrent()
if err != nil {
return nil, errors.Annotate(err, "failed to determine username for namespace")
}
username = u.Username
}
attrs["namespace"] = fmt.Sprintf("%s-%s", username, cfg.Name())
}
setIfNotBlank := func(key, value string) {
if value != "" {
attrs[key] = value
}
}
// If the user has specified no values for any of the four normal
// proxies, then look in the environment and set them.
logger.Tracef("Look for proxies?")
if cfg.HttpProxy() == "" &&
cfg.HttpsProxy() == "" &&
cfg.FtpProxy() == "" &&
cfg.NoProxy() == "" {
proxySettings := proxy.DetectProxies()
logger.Tracef("Proxies detected %#v", proxySettings)
setIfNotBlank(config.HttpProxyKey, proxySettings.Http)
setIfNotBlank(config.HttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.FtpProxyKey, proxySettings.Ftp)
setIfNotBlank(config.NoProxyKey, proxySettings.NoProxy)
}
if version.Current.OS == version.Ubuntu {
if cfg.AptHttpProxy() == "" &&
cfg.AptHttpsProxy() == "" &&
cfg.AptFtpProxy() == "" {
proxySettings, err := detectPackageProxies()
if err != nil {
return nil, errors.Trace(err)
}
setIfNotBlank(config.AptHttpProxyKey, proxySettings.Http)
setIfNotBlank(config.AptHttpsProxyKey, proxySettings.Https)
setIfNotBlank(config.AptFtpProxyKey, proxySettings.Ftp)
}
}
cfg, err := cfg.Apply(attrs)
if err != nil {
return nil, errors.Trace(err)
}
// Make sure everything is valid.
cfg, err = p.Validate(cfg, nil)
if err != nil {
return nil, errors.Trace(err)
}
return cfg, nil
}
// 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() == "" {
proxySettings := proxy.DetectProxies()
logger.Tracef("Proxies detected %#v", proxySettings)
setIfNotBlank("http-proxy", proxySettings.Http)
setIfNotBlank("https-proxy", proxySettings.Https)
setIfNotBlank("ftp-proxy", proxySettings.Ftp)
setIfNotBlank("no-proxy", proxySettings.NoProxy)
}
if cfg.AptHttpProxy() == "" &&
cfg.AptHttpsProxy() == "" &&
cfg.AptFtpProxy() == "" {
proxySettings, err := detectAptProxies()
if err != nil {
return nil, err
}
setIfNotBlank("apt-http-proxy", proxySettings.Http)
setIfNotBlank("apt-https-proxy", proxySettings.Https)
setIfNotBlank("apt-ftp-proxy", proxySettings.Ftp)
}
if len(attrs) > 0 {
cfg, err = cfg.Apply(attrs)
if err != nil {
return nil, err
}
}
return p.Open(cfg)
}