Function isHTTP503Error

agent/utils/ssl/acme.go:408–423

isHTTP503Error checks if an error is an HTTP 503 Service Unavailable error.

(err error)

// isHTTP503Error checks if an error is an HTTP 503 Service Unavailable error.
func isHTTP503Error(err error) bool {
	if err == nil {
		return false
	}

	// Check for golang.org/x/crypto/acme.Error (used in manual_client.go).
	var acmeErr *acme.Error
	if errors.As(err, &acmeErr) {
		return acmeErr.StatusCode == http.StatusServiceUnavailable
	}

	// Check error message for 503 (fallback for lego library errors).
	errMsg := err.Error()
	return strings.Contains(errMsg, "503") ||
		strings.Contains(errMsg, "Service busy")
}