nginx如何配置upstream反向代理
nginx配置upstream反向代理
http { ... upstream tomcats { server 192.168.106.176 weight=1; server 192.168.106.177 weight=1; } server { location /ops-coffee/ { proxy_pass http://tomcats; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } } }
稍不注意可能会落入一个proxy_pass加杠不加杠的陷阱,这里详细说下proxy_pass http://tomcats与proxy_pass http://tomcats/的区别:
虽然只是一个/的区别但结果确千差万别。分为以下两种情况:
1. 目标地址中不带uri(proxy_pass http://tomcats)。此时新的目标url中,匹配的uri部分不做修改,原来是什么就是什么。
location /ops-coffee/ { proxy_pass http://192.168.106.135:8181; } http://domain/ops-coffee/ --> http://192.168.106.135:8181/ops-coffee/ http://domain/ops-coffee/action/abc --> http://192.168.106.135:8181/ops-coffee/action/abc
2. 目标地址中带uri(proxy_pass http://tomcats/,/也是uri),此时新的目标url中,匹配的uri部分将会被修改为该参数中的uri。
location /ops-coffee/ { proxy_pass http://192.168.106.135:8181/; } http://domain/ops-coffee/ --> http://192.168.106.135:8181 http://domain/ops-coffee/action/abc --> http://192.168.106.135:8181/action/abc
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