[alibaba/tengine]健康检查支持动态域名解析 // make upstream check compatible with upstream dynamic module

当同时使用ngx_http_upstream_dynamic_module 和ngx_http_upstream_check_module 模块时，upstream中配置动态域名解析，如果域名对应的ip发生变化，健康检查不会更新后端服务器域名，导致健康检查失败，希望能够在健康检查功能中支持动态域名解析。

希望tengine健康检查的时候支持域名动态解析，当域名对应的ip发生变化时，健康检查能够动态解析域名并进行健康检查。

版本信息 /usr/local/tengine/sbin/nginx -V Tengine version: Tengine/2.3.0 (nginx/1.15.9) built by gcc 4.8.5 (SUSE Linux) built with OpenSSL 1.0.2j-fips 26 Sep 2016 (running with OpenSSL 1.0.2q 20 Nov 2018) TLS SNI support enabled configure arguments: --prefix=/usr/local/tengine --with-debug --with-pcre=../pcre-8.42 --add-module=modules/ngx_http_upstream_dynamic_module --add-module=modules/ngx_http_upstream_check_module 配置如下

    upstream backend {
                dynamic_resolve fallback=stale fail_timeout=30s;
                server a.com;
                server b.com;
                check interval=3000 rise=2 fall=5 timeout=1000 type=http;
                check_http_send "GET / HTTP/1.0\r\n\r\n";
                check_http_expect_alive http_2xx http_3xx;
        }

taoxinde

期待健康检查支持动态域名解析，目前我是这样解决的

upstream backend {
    server 127.0.0.1:8001;
    server 127.0.0.1:8002;
    check interval=3000 rise=2 fall=5 timeout=1000 type=http;
    check_http_send "GET / HTTP/1.0\r\n\r\n";
    check_http_expect_alive http_2xx http_3xx;
}
server {
    listen 8001;
    location / {
        resolver 223.5.5.5 223.6.6.6 valid=60s;
    set $upstream "http://a.com";
        proxy_pass $upstream;
   }
}
server {
    listen 8002;
    location / {
        resolver 223.5.5.5 223.6.6.6 valid=60s;
    set $upstream "http://b.com";
        proxy_pass $upstream;
   }
}

bianzhifu

[alibaba/tengine]健康检查支持动态域名解析 // make upstream check compatible with upstream dynamic module

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