Nginx Docker 反向代理配置

最近有用到在docker中启动nginx,并且反向代理到宿主机tomcat,这里贴上配置文件备忘。


#user  nobody;
worker_processes  1;

error_log  /wwwlogs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


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;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost; #改成你的域名

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   /www;  #docker容器中nginx在的静态文件目录
            try_files $uri $uri/ /index.html =404; #这里用的是react 所以这样配置
            index  index.html index.htm;
        #    proxy_pass http://localhost: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;   
        }

         location /api/ {
            # 把 /api 路径下的请求转发给tomcat
            proxy_pass http://localhost:8080/;

            # 把host头传过去,后端服务程序将收到域名地址, 否则收到的是localhost:8080
            proxy_set_header Host $http_host;

            # 把cookie中的path部分从/api替换成/
            proxy_cookie_path /api /;

            # 把cookie的path部分从localhost:8080替换成你的域名地址
            proxy_cookie_domain localhost:8080 localhost;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

在docker中,与宿主机之间的通信采用桥接模式,宿主机为容器所在网段第一个,比如我的容器是172.17.0.2,我的宿主机为172.17.0.1

  • 查看IP方法
  • 进入容器执行cat /etc/hosts
  • 或者 docker inspect 容器id/name

获取到我们需要的IP之后,我们还需要修改我们的配置文件,将配置文件中反向代理的localhost:8080改成我们的宿主机IP+端口,如果我们的tomcat是部署在宿主机的话。

docker启动参数

docker run -d --name mynginx  -p 80:80 -v $PWD/logs:/wwwlogs -v $PWD/www:/www -v $PWD/nginx.conf:/etc/nginx/nginx.conf nginx

这里映射了日志目录、静态文件目录、以及配置文件到容器,具体目录看自己配置文件。

Q.E.D.

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