Spring-云 Zuul Ignore/Include 服务

Question

是否可以在 zuul.ignoredServices 中使用负模式？我想对只有 name/virtualHostName 作为 "hrerp*".

的服务进行负载平衡

我可以在 zuul.routes 中明确定义这些。还有其他可能性吗？

Answer 1

不，尚不支持否定模式。欢迎提出请求。

Answer 2

作为替补：

扩展 ProxyRouteLocator (CustomProxyRouteLocator) 与已覆盖 locateRoutes()
- locateRoutes 会考虑 ZuulProperties.ignoredServices 被包括在内。
用 @Primary

CustomProxyRouteLocator

用 CustomProxyRouteLocator 启动了 PreDecorationFilter 个 bean，和 @Primary

Answer 3

尝试这样的事情，它可以让您完全控制那些被阻止的请求的阻止和记录：

在您的属性中设置：

zuul:
   blockedServices: 'admin, forbidden'

然后像这样创建过滤器 class：

@Component
@Slf4j
public class BlockingFilter extends ZuulFilter {

    @Value("#{'${zuul.blockedServices}'.replace(' ', '').split(',')}")
    private List<String> blockedServices;

    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return FilterConstants.PRE_DECORATION_FILTER_ORDER;
    }

    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() {
        if (isBlockedLocation()) {
            blockCurrentRequest();
        }
        return null;
    }

    private boolean isBlockedLocation() {
        String requestUrl = RequestContext.getCurrentContext().getRequest().getRequestURL().toString();

        Set<String> violations = blockedServices.stream()
            .filter(s-> requestUrl.matches(".*" +s +".*"))
            .collect(Collectors.toSet());

        if (violations.size() > 0) {
            log.warn("Blocked illegal request {} which violated rules {}",
                     requestUrl,
                     violations.stream().collect(Collectors.joining(" : ")));
            return true;
        }
        return false;
    }

    /**
     * If they attempt to get to an internal service report back not found
     */
    private void blockCurrentRequest() {
        RequestContext ctx = RequestContext.getCurrentContext();

        //Set your custom error code
        ctx.setResponseStatusCode(NOT_FOUND.value());

        //Spring tends to use json for not found.  This just sets a message.
        ctx.setResponseBody("Page not found");

        //Blocks this request from continued processing.
        ctx.setSendZuulResponse(false);
    }
}

Spring-云 Zuul Ignore/Include 服务

Spring-Cloud Zuul Ignore/Include Services

spring-cloud

netflix-zuul