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多个域名公用80端口是实现反向代理和负载均衡


文章目录

  • ​​一、快速入门​​
  • ​​1. 背景​​
  • ​​2. 案例1​​
  • ​​3. 案例2​​
  • ​​二、实战​​
  • ​​2.1. 配置备份​​
  • ​​2.2. 配置清空​​
  • ​​2.3. 配置初始化​​
  • ​​2.4. 配置统一管理​​
  • ​​2.5. 开发配置​​
  • ​​2.6. UAT配置​​
  • ​​2.7. 启动nginx​​
一、快速入门
1. 背景

使用nginx做反向代理的时候,可以简单的直接把请求原封不动的转发给下一个服务。设置proxy_pass请求只会替换域名,如果要根据不同的url后缀来访问不同的服务,则需要通过如下方法:

2. 案例1

server {
listen 8000;
server_name abc.com;
access_log "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G" main;

location ^~/user/ {
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-NginX-Proxy true;

proxy_pass http://user/;
}

location ^~/order/ {
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-NginX-Proxy true;

proxy_pass http://order/;
}
}

^~/user/表示匹配前缀是user的请求,proxy_pass的结尾有/, 则会把/user/*后面的路径直接拼接到后面,即移除user。

3. 案例2

upstream user {
server localhost:8089 weight=5;
}
upstream order {
server localhost:8090 weight=5;
}

server {
listen 80;
server_name abc.com;
access_log "pipe:rollback /data/log/nginx/access.log interval=1d baknum=7 maxsize=1G" main;

location ^~/user/ {
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-NginX-Proxy true;

rewrite ^/user/(.*)$ /$1 break;
proxy_pass http://user;
}

location ^~/order/ {
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-NginX-Proxy true;

rewrite ^/order/(.*)$ /$1 break;
proxy_pass http://order;
}
}

proxy_pass结尾没有/, rewrite重写了url。

二、实战
2.1. 配置备份

cd /usr/local/nginx/conf/
cp

2.2. 配置清空

清空nginx.conf文件内容

cat /dev/null >

2.3. 配置初始化

添加以下内容

多个域名公用80端口是实现反向代理和负载均衡_html

user ec2-user ec2-user;                                                                                                 
worker_processes 1;


events {
worker_connections 1024;
}


http {
include mime.types;
default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log logs/access.log main;

sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
include /usr/local/nginx/conf/conf.d/*.conf;
}

2.4. 配置统一管理

在conf目录下面创建conf.d文件夹,用于存储永不同环境的配置文件

mkdir

2.5. 开发配置

添加 开发环境配置文件dev.conf

cd conf.d
vim

添加以下内容

多个域名公用80端口是实现反向代理和负载均衡_配置文件_02

##############################################DEV环境##################################################                 
server {
listen 80;
server_name dev-ams.gblfy.com.cn;

location / {
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-NginX-Proxy true;
proxy_pass http://xxx.xxx.xxx.xxx:8082;
}


location ^~/dev-api/ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
rewrite ^/dev-api/(.*)$ /$1 break;
proxy_pass http://xxx.xxx.xxx.xxx:8080;
}

error_page 500 502 503 504 /50x.html;
location = /50x.html {

root html;
}
}

2.6. UAT配置

添加 uat环境配置文件uat.conf

cd conf.d
vim

内容详细如下

多个域名公用80端口是实现反向代理和负载均衡_nginx_03

###############################################UAT环境##################################################                
upstream app-cluster-test {
server xxx.xxx.xxx.xx1:8080;
server xxx.xxx.xxx.xx2:8080;
}

server {

listen 80;
server_name uat-ams.gblfy.com.cn;

location / {
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-NginX-Proxy true;
proxy_pass http://xxx.xxx.xxx.xxx:8082;
}

location ^~/uat-api/ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
rewrite ^/uat-api/(.*)$ /$1 break;
proxy_pass http://app-cluster-test;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}

2.7. 启动nginx

/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf


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