nginx.conf文件配置实用案例

这里演示以编译安装的nginx1.16版本：

#配置文件路径：/usr/local/nginx/conf/nginx.conf

#user  nobody;
worker_processes  4;
worker_rlimit_nofile 1024000;
working_directory /nginx;

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

#pid        logs/nginx.pid;


events {
    worker_connections  1024000;
    accept_mutex off;
    }
#accept_mutex的意义：当一个新接到达时，如果激活了accept_mutex，那么多个Worker将以串行方式来处理，其中有一个Worker会被唤醒其他的Worker继续保持休眠状态；如果没有激活accept_mutex，那么所有的Worker都会被唤醒，不过只一个Worker能获取新连接，其它的Worker会重新进入休眠状态，这就是「惊群问题」。Nginx缺省激活了acept_mutex，是一种保守的选择。如果关闭了它，可能会引起一定程度的惊群问题，表现为上下文切换增（sar -w）或者负载上升，但是如果你的网站访问量比较大，为了系统的吞吐量，我还是建议大家关闭它。
thread_pool one threads=128 max_queue=0;
http {
    include       mime.types;
    default_type  application/octet-stream;
    server_tokens off;
    client_header_buffer_size 16k;
    client_body_buffer_size 512k;
    client_body_temp_path /dev/shm/client_body_temp;
   
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$body_bytes_sent "$http_referer" '
                      '"$request_body" '
                      '"$http_user_agent" "$http_x_forwarded_for"'
                      '$upstream_addr $status $request_time $upstream_response_time' ;
    log_format json '{"@timestamp":"$time_iso8601",'
                    '"host":"$server_addr",'
                    '"clientip":"$remote_addr",'
                    '"size":$body_bytes_sent,'
                    '"xff":"$http_x_forwarded_for",'
                    '"upstreamhost":"$upstream_addr",'
                    '"status":"$status",'
                    '"responsetime":$request_time,'
                    '"upstreamtime":"$upstream_response_time",'
                    '"http_host":"$host",'
                    '"url":"$uri"}';

    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
        }

    #access_log  logs/access.log  main;
    access_log  off;

    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay    on;
    max_ranges 1;
    #keepalive_timeout  0;
    keepalive_timeout  300s 300s;
       keepalive_requests 8192;

    gzip  on;
        gzip_min_length 10k;
        gzip_buffers 16 16k;
        gzip_comp_level 5;
        gzip_vary on;
        gzip_types text/plain application/x-javascript text/css application/xml application/javascript image/jpeg image/gif image/png;

           proxy_cache_path /nginx/cache levels=1:2 keys_zone=first:100m inactive=24h max_size=2G use_temp_path=off;
           proxy_http_version 1.1;
      proxy_set_header Connection "";
       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_connect_timeout 1m;
       proxy_send_timeout 10m;
       proxy_read_timeout 10m;
       proxy_buffering on;
       proxy_buffer_size 256k;
       proxy_buffers 4 256k;
       proxy_busy_buffers_size 256k;
       #proxy_next_upstream http_502 http_504 http_404 error timeout invalid_header;

#负载均衡http配置：       

 upstream iewebservice {
        server 10.230.248.115:9529 weight=1 max_fails=2;
        server 10.230.248.116:9529 weight=1 max_fails=2;
        }
    server {
    listen       80  default_server;
    server_name  _;
    location /ngx_status {
                   stub_status on;
                   access_log  off;
                   allow 127.0.0.1;
                   allow 10.3.22.153;
                   deny all;
        }
}

#上面的server模块是全局指向
#下面的server模块是针对upstream
    server {
        listen       80;
        server_name crm2.wuliusys.com;
        rewrite  ^/(.*) https://crm2.wuliusys.com/$1 permanent;
    }

#匹配成功后跳转到指定域，执行永久301跳转
    server {
        listen       80;
        server_name  iewebservice.rfddc.com;
        #charset koi8-r;
        #access_log  logs/host.access.log  main;
        location / {
            root   html;
            proxy_pass http://iewebservice;
        }

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

#负载均衡https配置   

upstream backend-crm {
    server 10.230.4.11:8081 weight=1 max_fails=2;
    server 10.230.3.34:8081 weight=1 max_fails=2;
    }
    server {
        listen       443;
        client_max_body_size 15M;
        server_name  crm2.wuliusys.com;
        client_header_timeout 5m;
        client_body_timeout 5m;
        send_timeout 5m;
        ssl on;
        ssl_certificate      /etc/nginx/cert/server.crt;
        ssl_certificate_key   /etc/nginx/cert/key.txt;
#这里的证书要存放到指定的路径下
        ssl_session_timeout  5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_ciphers  ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers   on;
        proxy_set_header X-Forwarded-Proto https;
        proxy_redirect http:// https://;
        #charset koi8-r;

        error_log  logs/crm2.error.log;
        #access_log  logs/crm2.access.log;
        location / {
           proxy_http_version 1.1;
           proxy_set_header Connection "";
           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_pass http://backend-crm;

        }
       location ~* ".(jpg|jpeg|png|gif|html|css|js)$" {
           proxy_http_version 1.1;
           proxy_set_header Connection "";
           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_connect_timeout 5m;
           proxy_send_timeout 10m;
           proxy_read_timeout 10m;
           proxy_buffering on;
           proxy_buffer_size 256k;
           proxy_buffers 4 256k;
           proxy_busy_buffers_size 256k;
           proxy_next_upstream http_502 http_504 http_404 error timeout invalid_header;
           proxy_cache first;
           proxy_cache_valid 200 24h;
           proxy_cache_valid 302 10m;
           add_header X-Cache-Status $upstream_cache_status;
           proxy_pass http://backend-crm;

       }
        #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;
        }
       location = /404-3.png {
            root   html;
        }
}

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