Function BuildConfigFromArgs

cmd/controller/controller.go:70–92

BuildConfigFromArgs parses CLI args and env vars, then builds config. Config file can be specified via --config flag or CONFIG env var. Priority: defaults < config file < environment variables < CLI args

(args []string)

// Config file can be specified via --config flag or CONFIG env var.
// Priority: defaults < config file < environment variables < CLI args
func BuildConfigFromArgs(args []string) (*config.Config, error) {
	cli := &CLI{}
	parser, err := kong.New(
		cli,
		kong.Name("agent-stack-k8s"),
		kong.Description("Buildkite Agent Stack for Kubernetes"),
		kong.DefaultEnvars(""),
		kong.ConfigureHelp(kong.HelpOptions{
			Compact: true,
		}),
		kong.UsageOnError(),
	)
	if err != nil {
		return nil, fmt.Errorf("failed to create parser: %w", err)
	}

	_, err = parser.Parse(args)
	if err != nil {
		parser.FatalIfErrorf(err)
	}

	return buildConfig(cli)
}

// buildConfig builds the config from CLI values with correct precedence:
// defaults < config file < env vars/CLI flags.