配置清晰，nignx http tcp 代理 已经websocket

 启动

docker run -it --name lv_ocr --privileged=true --restart=always --net=host -v $(pwd)/config/nginx.conf:/etc/nginx/nginx.conf -v $(pwd)/config/conf.d:/etc/nginx/conf.d  -d  harbor.jettech.com/jettechtools/nginx:1.21.4

[root@it4it-prd-99 config]# ls
conf.d  nginx.conf
[root@it4it-prd-99 config]# tree
.
├── conf.d
│   ├── http
│   │   ├── server
│   │   │   ├── captcha_aarch64.conf
│   │   │   └── captcha_x86.conf
│   │   └── stream
│   │       ├── captcha_aarch64.conf
│   │       └── captcha_x86_64.conf
│   └── tcp
│       ├── server
│       │   └── mysql.conf
│       └── stream
│           └── mysql.conf
└── nginx.conf

[root@it4it-prd-99 config]# cat nginx.conf 
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
    worker_connections 1024;
}
http {
    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  /var/log/nginx/access.log  main;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    include /etc/nginx/conf.d/http/stream/*.conf;
    include /etc/nginx/conf.d/http/server/*.conf;
}
stream {
    include /etc/nginx/conf.d/tcp/stream/*.conf;
    include /etc/nginx/conf.d/tcp/server/*.conf;
}

 http: 

[root@it4it-prd-99 config]# cat conf.d/http/server/captcha_x86.conf 
server {
    listen 80;
    location / {
       proxy_set_header X-Forwarded-Host $host;
       proxy_set_header Host $host;
       proxy_set_header X-Forwarded-Server $host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       client_max_body_size 3000m;
       proxy_buffer_size 63k;
       proxy_buffers   1024 64k;
       client_body_buffer_size 512m;
       fastcgi_connect_timeout 300;
       fastcgi_send_timeout 300;
       fastcgi_read_timeout 300;
       proxy_pass http://captcha_x86;
    }
    location /status {
            stub_status on;
            access_log off;
    }

}

[root@it4it-prd-99 config]# cat conf.d/http/stream/captcha_x86_64.conf 
upstream captcha_x86 {
     least_conn; #使用最少连接调度算法
     #ip_hash;
     #random;
     server 192.168.0.7:52000  weight=1 max_fails=5 fail_timeout=2;
     #server 192.168.0.8:9999  weight=1 max_fails=5 fail_timeout=2 backup; #备份机使用，所有宕机时候使用
}

tcp:

[root@it4it-prd-99 config]# cat conf.d/tcp/server/mysql.conf 
server {
    listen 23306;
    proxy_connect_timeout 10s;
    proxy_timeout 200s;
    proxy_pass mysql;
}

[root@it4it-prd-99 config]# cat conf.d/tcp/stream/mysql.conf 
upstream mysql {
    server 172.16.10.57:53306;
}