Function generateHostKeys

main.go:238–292

(configFile string, cfg *config.AppConfig, logger log.Logger)

}

func generateHostKeys(configFile string, cfg *config.AppConfig, logger log.Logger) error {
	if err := cfg.SSH.GenerateHostKey(); err != nil {
		return err
	}

	tmpFile := fmt.Sprintf("%s~", configFile)
	fh, err := os.Create(tmpFile)
	if err != nil {
		logger.Warning(
			message.Wrap(
				err,
				message.ECannotWriteConfigFile,
				"Cannot create temporary configuration file at %s with updated host keys.",
				tmpFile,
			).Label("tmpFile", configFile))
		return nil
	}
	format := getConfigFileFormat(configFile)
	saver, err := internalConfig.NewWriterSaver(fh, logger, format)
	if err != nil {
		_ = fh.Close()
		logger.Warning(
			message.Wrap(
				err,
				message.ECannotWriteConfigFile,
				"Cannot initialize temporary configuration file at %s with updated host keys.",
				tmpFile,
			).Label("tmpFile", configFile))
		return nil
	}
	if err := saver.Save(cfg); err != nil {
		_ = fh.Close()
		logger.Warning(
			message.Wrap(
				err,
				message.ECannotWriteConfigFile,
				"Cannot save temporary configuration file at %s with updated host keys.",
				tmpFile,
			).Label("tmpFile", configFile))
		return nil
	}
	if err := fh.Close(); err != nil {
		logger.Warning(message.Wrap(err,
			message.ECannotWriteConfigFile, "Cannot close temporary configuration file at %s with updated host keys.", tmpFile).Label("tmpFile", configFile))
		return nil
	}

	if err := os.Rename(tmpFile, configFile); err != nil {
		logger.Warning(message.Wrap(err,
			message.ECannotWriteConfigFile, "Failed to rename temporary file %s to %s with updated host keys.", tmpFile, configFile).Label("file", configFile).Label("tmpFile", tmpFile))
		return fmt.Errorf("failed to rename temporary file %s to %s (%w)", tmpFile, configFile, err)
	}

	return nil
}

func healthCheck(cfg config.AppConfig, logger log.Logger) error {
	healthClient, err := health.NewClient(cfg.Health, logger)