简介

nginx-upsync-module - Nginx C module, sync upstreams from consul、etcd and zookeeper, dynamiclly modify backend-servers attribute(weight, max_fails,...), needn't reload nginx.

the project is based on weibocom/nginx-upsync-module，you can find more detail from it.

nginx插件，支持在不reload nginx的情况下，更新upstream配置。upstream配置存储在etcd/zk/consul中.

因为zk不提供内置的rest http api，因此要使用ezbz/Zookie ，本插件的json格式解析也是按照ezbz/Zookie 来的。

upstream test {
    # fake server otherwise ngx_http_upstream will report error when startup
    server 127.0.0.1:11111;

    # all backend server will pull from consul when startup and will delete fake server
    upsync 192.168.3.56:12023/Zookie/tree?root=/nginx/upstreams/test upsync_timeout=6m upsync_interval=500ms upsync_type=zk strong_dependency=off;
    upsync_dump_path /usr/local/nginx/conf/servers/servers_test.conf;
}

server {
    listen 90;

    location = /proxy_test {
        proxy_pass http://test;
    }

    location = /upstream_show {
        upstream_show;
    }

}