前端er该知道的一些关于Nginx的事 about genffy

[genffy]

其实在实践的过程中实践浪费的最多还是在搭建环境上，或者说是实验拓扑吧。
最开始的想法是利用docker的，结果没玩转过来，最后无奈只好在本地利用nginx勉强弄了。

server {
    listen       80;
    server_name  demo.com;
    # proxy
    location / {
       proxy_pass http://127.0.0.1:8082/;
    }
    access_log  /usr/local/etc/nginx/logs/demo.access.log;
}
server {
    listen       80;
    server_name  api.demo.com;
    # proxy
    location / {
       proxy_pass http://127.0.0.1:9000/;
    }
    access_log  /usr/local/etc/nginx/logs/api.demo.access.log;
}
server {
    listen       80;
    server_name  data.demo.com;
    # proxy
    location / {
       proxy_pass http://127.0.0.1:9000/demo/;
    }
    access_log  /usr/local/etc/nginx/logs/data.demo.access.log;
}
server {
    listen       80;
    server_name  static.demo.com;
    # proxy
    location / {
       proxy_pass http://127.0.0.1:8083;
    }
    access_log  /usr/local/etc/nginx/logs/static.demo.access.log;
}
server {
    listen       80;
    server_name  stream.demo.com;
    # proxy
    location / {
       proxy_pass http://127.0.0.1:8084;
    }
    access_log  /usr/local/etc/nginx/logs/stream.demo.access.log;
}

[genffy]

location 与 proxy_pass 搭配使用几种情况

最近做迁移遇到了一些 location 与 proxy_pass 搭配使用遇到的几种情况在这里总结下:

location	proxy_pass	Request	Received by upstream
/webapp/	http://localhost:5000/api/	/webapp/foo?bar=baz	/api/foo?bar=baz
/webapp/	http://localhost:5000/api	/webapp/foo?bar=baz	/apifoo?bar=baz
/webapp	http://localhost:5000/api/	/webapp/foo?bar=baz	/api//foo?bar=baz
/webapp	http://localhost:5000/api	/webapp/foo?bar=baz	/api/foo?bar=baz
/webapp	http://localhost:5000/api	/webappfoo?bar=baz	/apifoo?bar=baz
/webapp	http://localhost:5000	/webapp/foo?bar=baz	/webapp/foo?bar=baz
/webapp	http://localhost:5000/	/webapp/foo?bar=baz	/foo?bar=baz

参考：https://dev.to/danielkun/nginx-everything-about-proxypass-2ona

[genffy]

nginx 修改 cookie key 的方案

刚好最近遇到一个需要转换 cookie key 的场景，打通两个网关，网上找了个感觉还挺有用的，然后贴一下实际使用的完整配置。
原答案：remove-specific-cookie-in-nginx-reverse-proxy.

location /api {

    # save original "Cookie" header value
    set $altered_cookie $http_cookie;

    # check if the "my_cookie" cookie is present
    if ($http_cookie ~ '(.*)(^|;\s)my_cookie=("[^"]*"|[^\s]*[^;]?)(\2|$|;$)(?:;\s)?(.*)') {
        # cut "my_cookie" cookie from the string
        set $altered_cookie "$1$4$5;your_define_key=$cookie_my_cookie";
    }

    # hide original "Cookie" header
    proxy_hide_header Cookie;

    # set "Cookie" header to the new value
    proxy_set_header  Cookie $altered_cookie;

    ... # other proxy settings here

    proxy_pass <upstream>; # change to your upstream server
}