nginx简单配置及简单说明
nginx安装就不说了，直接上配置文件，改改就可以了：
nginx.conf
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|
user nginx;
worker_processes 8;
worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;
worker_rlimit_nofile 2000000;
error_log /var/log/nginx/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 2000000;
use epoll;
multi_accept on;
}
http {
include mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$http_x_forwarded_for '
'$upstream_addr '
'ups_resp_time: $upstream_response_time '
'request_time: $request_time'
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
client_max_body_size 5000m;
client_body_buffer_size 512k;
proxy_connect_timeout 3000;
proxy_send_timeout 3000;
proxy_read_timeout 3000;
proxy_buffer_size 512k;
proxy_buffers 8 512k;
proxy_busy_buffers_size 512k;
proxy_temp_file_write_size 512k;
proxy_next_upstream error timeout invalid_header http_500 http_503 http_404;
proxy_max_temp_file_size 128m;
fastcgi_read_timeout 3000;
fastcgi_buffers 8 5125;
send_timeout 3000;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_disable none;
keepalive_timeout 120;
keepalive_requests 65535;
types_hash_max_size 2048;
charset utf-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
reset_timedout_connection on;
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png application/json;
gzip_vary off;
gzip_disable "MSIE [1-6]\.";
include conf.d/*.conf;
}
|
APP.conf
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| upstream apitest{
# ip_hash;
# least_conn;
server 192.168.0.1:8080;
server 192.168.0.2:8080;
server 192.168.0.3:8080;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
#location / {
# root html;
# index index.html index.htm;
# proxy_pass http://apitest;
#}
location ^~ /api/ {
proxy_http_version 1.1;
proxy_set_header Host $host;
proxy_set_header Connection "";
#proxy_set_header X-Real-IP $remote_addr;
#proxy_set_header REMOTE-HOST $remote_addr;
#proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://apitest/api/;
proxy_redirect off;
}
location ^~ /auth/ {
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 REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://apitest/auth/;
proxy_redirect off;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# 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;
#}
}
|
简单说明
负载均衡
配置负载均衡，只要就是使用了节点upstream，参考格式如下：
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| #配置多台服务器（这里只在一台服务器上的不同端口）
upstream mysvr {
#权重比设置为1 ： 3 意思为 用户请求四次服务器，平均访问8082端口3次，8081端口一次，以此达到服务器均衡的作用（高并发）
server 127.0.0.1:8081 weight=1;
server 127.0.0.1:8082 weight=3;
}
|
反向代理
反向代理只要就是用来将请求发送给其他主机的ap服务器，简单来说就是，nginx收到请求后，将请求转发给对应的ap服务器。例如：
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| location /apitest/ {
proxy_pass http://192.168.0.1:8080;
}
|
当请求收到以apitest/开头的请求，就会转发到http://192.168.0.1:8080；所以如果有个请求是http://192.168.3.2/apitest/getusername，通过nginx就会转到http://192.168.0.1:8080/apitest/getusername达到转发的效果，配合之前的负载均衡，就可以实现请求一个ip的接口，转到upstream中定义的多个ip的接口。
proxy_pass末尾“/”问题
在nginx配置proxy_pass代理转发时，如果proxy_pass后面的URL加了/，表示绝对根路径；如果没有/，表示相对路径，把匹配的路径部分也代理走。
假设都访问http://192.168.2.1:8082/apitest/login.html
第一种
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| location /apitest/ {
proxy_pass http://127.0.0.1/;
}
|
代理到URL: http://127.0.0.1/apitest/login.html
第二种
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| location /apitest/ {
proxy_pass http://127.0.0.1;
}
|
第二种相对于第一种，proxy_pass后面的url少了/，代理到URL:http://127.0.0.1/apitest/login.html
第三种
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| location /apitest/ {
proxy_pass http://127.0.0.1/aaa/;
}
|
第三种相对于第一种，proxy_pass后面的url加了一层aaa/，代理到URL:http://127.0.0.1/aaa/login.html
第四种
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| location /apitest/ {
proxy_pass http://127.0.0.1/aaa;
}
|
第四种相对于第一种，proxy_pass后面的url加了一层aaa，代理到URL:http://127.0.0.1/aaalogin.html
完~
