// templateUserData returns a minimal user data necessary for the template.
// This should have the authorized keys, base packages, the cloud archive if
// necessary, initial apt proxy config, and it should do the apt-get
// update/upgrade initially.
func TemplateUserData(
series string,
authorizedKeys string,
aptProxy proxy.Settings,
aptMirror string,
enablePackageUpdates bool,
enableOSUpgrades bool,
networkConfig *container.NetworkConfig,
) ([]byte, error) {
var config cloudinit.CloudConfig
var err error
if networkConfig != nil {
config, err = newCloudInitConfigWithNetworks(series, networkConfig)
if err != nil {
return nil, errors.Trace(err)
}
} else {
config, err = cloudinit.New(series)
if err != nil {
return nil, errors.Trace(err)
}
}
config.AddScripts(
"set -xe", // ensure we run all the scripts or abort.
)
// For LTS series which need support for the cloud-tools archive,
// we need to enable apt-get update regardless of the environ
// setting, otherwise provisioning will fail.
if series == "precise" && !enablePackageUpdates {
logger.Warningf("series %q requires cloud-tools archive: enabling updates", series)
enablePackageUpdates = true
}
config.AddSSHAuthorizedKeys(authorizedKeys)
if enablePackageUpdates && config.RequiresCloudArchiveCloudTools() {
config.AddCloudArchiveCloudTools()
}
config.AddPackageCommands(aptProxy, aptMirror, enablePackageUpdates, enableOSUpgrades)
initSystem, err := service.VersionInitSystem(series)
if err != nil {
return nil, errors.Trace(err)
}
cmds, err := shutdownInitCommands(initSystem, series)
if err != nil {
return nil, errors.Trace(err)
}
config.AddScripts(strings.Join(cmds, "\n"))
data, err := config.RenderYAML()
if err != nil {
return nil, err
}
return data, nil
}
