域名指向配置

通过Nginx使用不同的域名指向不同的服务

1.配置和启动Nginx

docker network create nginx-test

# 注意不同版本docker可能指定网络的方式不太一样
docker run --name nginx \
  --network nginx-test -itd \
  -p 80:80 \
  -v ./nginx.conf:/etc/nginx/conf.d/proxy.conf \
  nginx:1.25.1

client_body_buffer_size 2048m;   # 设置客户端请求的缓冲区大小
client_header_buffer_size 2048m; # 设置客户端请求头部的缓冲区大小
client_max_body_size 2048m;      # 设置客户端请求的最大缓冲区大小

server {
    listen 80;
    server_name a.com;

    location / {
        proxy_pass http://127.0.0.1:5000;
        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;
    }
}

server {
    listen 80;
    server_name b.com;

    location / {
        proxy_pass http://gin:8080;
        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;
    }
}

2.启动服务监听8080端口

# 服务默认端口是5678
docker run --network nginx-test -itd \
  --network-alias gin \
  435861851/gin:v0.0.1

注意: 此时访问在nginx内部访问gin:8080是输出Hello Gin

3.配置域名/etc/host

127.0.0.1 b.com

4.使用IP访问

http://b.com

输出 {"message":"Hello Gin!"}