nginx 负载均衡 ngx_http_upstream
例子1：－－－－－－－－－－－－－－－－－－－－－－－－－upstreambackend{
server backend1.example.com weight=5;
server backend2.example.com:8080;
server unix:/tmp/backend3;
}
server {
location / {
proxy_passhttp://backend;
}
}
例子2：－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
http {
upstream myproject {
server 127.0.0.1:8000 weight=3;
server 127.0.0.1:8001;
server 127.0.0.1:8002;
server 127.0.0.1:8003;
}
server {
listen 80;
server_name www.domain.com;
location / {
proxy_pass http://myproject;
}
}
}
例子3：－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
upstream sitename {
server 127.0.0.1:4000;
server 127.0.0.1:4001;
}
server {
listen 80;
server_name www.sitename.com;
rewrite ^(/.*) http://sitename.com$1 permanent;
}
server {
listen 80;
server_name sitename.com;
location / {
proxy_pass http://sitename;
}
}
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