Nginx-Stream-UpSync-Module 介绍
Nginx-Stream-UpSync-Module
是基于nginx四层TCP协议的弹性扩缩容方案，实现性能无损的扩容缩容：
当前模块支持etcd 和 consul，相关配置如下：
Nginx-etcd:
stream {
upstream test {
# fake server otherwise ngx_stream_upstream will report error when startup
server 127.0.0.1:11111;
# all backend server will pull from etcd when startup and will delete fake server
upsync 127.0.0.1:8500/v2/keys/upstreams/test upsync_timeout=6m upsync_interval=500ms upsync_type=etcd strong_dependency=off;
upsync_dump_path /usr/local/Nginx/conf/servers/servers_test.conf;
}
upstream bar {
server 127.0.0.1:8090 weight=1, fail_timeout=10, max_fails=3;
}
server {
listen 12345;
proxy_connect_timeout 1s;
proxy_timeout 3s;
proxy_pass test;
}
server {
listen 2345;
upstream_show
}
server {
listen 127.0.0.1:9091;
proxy_responses 1;
proxy_timeout 20s;
proxy_pass bar;
}
}
Nginx-consul:
stream {
upstream test {
# fake server otherwise ngx_stream_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 127.0.0.1:8500/v1/kv/upstreams/test upsync_timeout=6m upsync_interval=500ms upsync_type=consul strong_dependency=off;
upsync_dump_path /usr/local/Nginx/conf/servers/servers_test.conf;
}
upstream bar {
server 127.0.0.1:8090 weight=1, fail_timeout=10, max_fails=3;
}
server {
listen 12345;
proxy_connect_timeout 1s;
proxy_timeout 3s;
proxy_pass test;
}
server {
listen 2345;
upstream_show
}
server {
listen 127.0.0.1:9091;
proxy_responses 1;
proxy_timeout 20s;
proxy_pass bar;
}
}
相关设计文档可参考：https://github.com/weibocom/nginx-upsync-module/tree/master/doc；
设计原理一致。