public static DivideUpstream buildDefaultAliveDivideUpstream(final String upstreamUrl) {
        return DivideUpstream.builder().upstreamHost(LOCALHOST)
                .protocol("http://").upstreamUrl(upstreamUrl)
                .weight(DEFAULT_WEIGHT).warmup(Constants.WARMUP_TIME)
                .timestamp(System.currentTimeMillis()).build();
    }
Build alive divide upstream.

@param upstreamUrl the upstreamUrl
@return the divide upstream
shenyu-admin/src/main/java/org/apache/shenyu/admin/utils/CommonUpstreamUtils.java