😝nginx 负载均衡 和反向代理配置
2018-05-23 本文已影响9人
欧巴冰冰
yum install -y nginx
通过yum安装的时候提示下面的错误
[root@localhost yum.repos.d]# yum install nginx
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
没有可用软件包 nginx。
错误：无须任何处理
需要添加nginx的源
[root@localhost yum.repos.d]# rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
该命令执行之后，会在/etc/yum.respos.d下面多出一个nginx.repo
[root@localhost yum.repos.d]# ll
总用量 40
-rw-r--r--. 1 root root 1572 12月 1 2016 CentOS-Base.repo
-rw-r--r--. 1 root root 1572 12月 1 2016 CentOS-Base.repo.backup
-rw-r--r--. 1 root root 1664 10月 24 10:36 CentOS-Base.repo.bak
-rw-r--r--. 1 root root 1309 8月 30 2017 CentOS-CR.repo
-rw-r--r--. 1 root root 649 8月 30 2017 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root 314 8月 30 2017 CentOS-fasttrack.repo
-rw-r--r--. 1 root root 630 8月 30 2017 CentOS-Media.repo
-rw-r--r--. 1 root root 1331 8月 30 2017 CentOS-Sources.repo
-rw-r--r--. 1 root root 3830 8月 30 2017 CentOS-Vault.repo
-rw-r--r--. 1 root root 113 7月 15 2014 nginx.repo
然后再执行安装命令
yum install -y nginx
安装之后，可以查看nginx的默认安装目录
[root@localhost yum.repos.d]# whereis nginx
nginx: /usr/sbin/nginx /usr/lib64/nginx /etc/nginx /usr/share/nginx /usr/share/man/man8/nginx.8.gz
[root@localhost yum.repos.d]# pwd
/etc/yum.repos.d
以下是Nginx的默认路径：
(1) Nginx配置路径：/etc/nginx/
(2) PID目录：/var/run/nginx.pid
(3) 错误日志：/var/log/nginx/error.log
(4) 访问日志：/var/log/nginx/access.log
(5) 默认站点目录：/usr/share/nginx/html
事实上，只需知道Nginx配置路径，其他路径均可在/etc/nginx/nginx.conf 以及/etc/nginx/conf.d/default.conf 中查询到
nginx相关的验证命令及启动命令
[root@localhost yum.repos.d]# nginx
[root@localhost yum.repos.d]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
[root@localhost yum.repos.d]# nginx -s reload
nginx 启动
nginx -t 测试命令
nginx -s relaod 修改nginx.conf之后，可以重载
yum 安装参考：http://www.itmuch.com/install/nginx-yum-install-in-centos7/
编译方式安装参考 https://www.cnblogs.com/hafiz/p/6891458.html?utm_source=itdadao&utm_medium=referral
nginx 配置优化
/etc/nginx/nginx.conf
worker_processes 4; ##几个 CPU 就改为几
events {
worker_connections 2048;
}
负载均衡规则配置
/etc/nginx/conf.d/ default.conf
upstream blog-wap.xxx.com {
#server 171.xx.x.xxx:8090 weight=1;
#server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
#server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
}
upstream blog-api.xxx.com {
#server 171.xx.x.xxx:8090 weight=1;
#server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
#server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
server 171.xx.x.xxx:8090 weight=1;
}
upstream blog-test.xxx.com {
server 171.xx.x.xxx:8090 weight=1;
}
upstream blog-admin.xxx.com {
server 171.xx.x.xxx:8090 weight=1;
}
upstream blog-img.xxx.com {
server 171.xx.x.xxx:8090 weight=1;
}
upstream njart-blog-src.xxx.com {
server 171.xx.x.xxx:8090 weight=1;
}
upstream blog-dev.xxx.com {
server 171.xx.x.xxx:8090 weight=1;
}
server {
listen 80;
server_name blog-wap.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-wap.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
server {
listen 80;
server_name blog-api.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-api.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
server {
listen 80;
server_name blog-admin.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-admin.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
##这台服务器， 支持接口代码访问，同时支持图片独立域名访问
server {
listen 80;
server_name blog-img.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-img.xxx.com;
}
location ~* \.(gif|jpg|jpeg|png|bmp)$ {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
#proxy_set_header Host $http_host;
proxy_pass http://njart-blog-src.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
server {
listen 80;
server_name blog-dev.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-dev.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
server {
listen 80;
server_name blog-test.xxx.com;
location / {
proxy_store off;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://blog-test.xxx.com;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /data/web/njart/wap/webroot/index.html;
}
}
