Nginx web proxy NFS服务

1.nginx web 安装 配置　

#systemctl stop firewalld
#systemctl disabled firewalld
#wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
#yum install nginx -y
#echo "welcome to china" >/usr/share/nginx/html/index.html
#systemctl start nginx.service
#curl 192.168.16.95
  welcome to china

2.nginx proxy

proxy              192.168.16.95
web01             192.168.16.186
web02             192.168.16.187

#web01操作
[root@web01 ~]# yum install nginx -y
[root@web01 ~]# echo "welcome to web01" >/usr/share/nginx/html/index.html
[root@web01 ~]# systemctl start nginx.service
[root@web01 ~]# curl 192.168.16.186
welcome to web01

#web02操作
[root@web02 ~]# systemctl stop firewalld
[root@web02 ~]# echo "welcome to web02" >/usr/share/nginx/html/index.html
[root@web02 ~]# systemctl start nginx.service
[root@web02 ~]# curl 192.168.16.187
welcome to web02

#proxy 操作
[root@proxy ~]# vim /etc/nginx/nginx.conf
http {
    upstream web {
        server 192.168.16.186;
        server 192.168.16.187;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://web;
        }
    }
}
[root@proxy ~]# systemctl reload nginx.service

#其它服务器curl
bogon:~ centos$ curl 192.168.16.95
welcome to web01
bogon:~ centos$ curl 192.168.16.95
welcome to web02

2.nginx 调度  轮询  权重  hash

#轮询
http {
    upstream myapp1 {
        server srv1.example.com;
        server srv2.example.com;
        server srv3.example.com;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://myapp1;
        }
    }
}

#权重
http {
    upstream myapp1 {
        server srv1.example.com weight=3;
        server srv2.example.com;
        server srv3.example.com;
    }
    server {
        listen 80;

        location / {
            proxy_pass http://myapp1;
        }
    }
}

#hash

http {
    upstream myapp1 {
       ip_hash;
        server srv1.example.com;
        server srv2.example.com;
        server srv3.example.com;
    }
    server {
        listen 80;

        location / {
            proxy_pass http://myapp1;
        }
    }
}

4.nfs服务

#环境准备
nfs服务端                   192.168.16.95
web01                      192.168.16.186
web02                      192.168.16.187

#nfs服务端
[root@proxy ~]# cat /etc/exports
/share 192.168.16.0/24(rw,sync,fsid=0)
[root@proxy ~]# mkdir  /share
[root@proxy ~]# chmod o+w /share
[root@proxy ~]# cat /etc/exports
/share 192.168.16.0/24(rw,sync,fsid=0)
[root@proxy ~]# mkdir  /share
[root@proxy ~]# chmod o+w /share
[root@proxy ~]#  systemctl start rpcbind.service
[root@proxy ~]# systemctl start nfs-server.service
[root@proxy ~]# echo "192.168.16.95 proxy" >>/etc/hosts
[root@proxy ~]# exportfs
/share        	192.168.16.0/24
[root@proxy ~]# showmount -e
Export list for proxy:
/share 192.168.16.187/24,192.168.16.186/24

#web01 操作
[root@bogon ~]# yum install rpcbind nfs-utils -y
[root@web01 ~]#  systemctl start rpcbind.service
[root@web01 ~]# systemctl start nfs-server.service
[root@web01 ~]# showmount -e 192.168.16.95
Export list for 192.168.16.95:
/share 192.168.16.187/24,192.168.16.186/24
[root@web01 ~]# mount -t nfs 192.168.16.95:/share /usr/share/nginx/html/
[root@web01 ~]# df -h
文件系统              容量  已用  可用 已用% 挂载点
/dev/mapper/cl-root    18G  4.6G   13G   26% /
devtmpfs              473M     0  473M    0% /dev
tmpfs                 489M     0  489M    0% /dev/shm
tmpfs                 489M  7.1M  482M    2% /run
tmpfs                 489M     0  489M    0% /sys/fs/cgroup
/dev/sda1             509M  169M  341M   34% /boot
tmpfs                  98M     0   98M    0% /run/user/0
192.168.16.95:/share   18G  5.0G   13G   29% /usr/share/nginx/html

#web02 操作
[root@bogon ~]# yum install rpcbind nfs-utils -y
[root@web02 ~]#  systemctl start rpcbind.service
[root@web02 ~]# systemctl start nfs-server.service
[root@web02 ~]# showmount -e 192.168.16.95
Export list for 192.168.16.95:
/share 192.168.16.187/24,192.168.16.186/24
[root@web01 ~]# mount -t nfs 192.168.16.95:/share /usr/share/nginx/html/
[root@web02 ~]# mount -t nfs 192.168.16.95:/share /usr/share/nginx/html/
[root@web02 ~]# df -h
文件系统              容量  已用  可用 已用% 挂载点
/dev/mapper/cl-root    18G  4.6G   13G   26% /
devtmpfs              473M     0  473M    0% /dev
tmpfs                 489M     0  489M    0% /dev/shm
tmpfs                 489M  7.1M  482M    2% /run
tmpfs                 489M     0  489M    0% /sys/fs/cgroup
/dev/sda1             509M  169M  341M   34% /boot
tmpfs                  98M     0   98M    0% /run/user/0
192.168.16.95:/share   18G  5.0G   13G   29% /usr/share/nginx/html

#proxy创建文件 web01  web02 查看
[root@proxy share]# echo "Nginx" >/share/index.html

[root@web01 html]# cat /usr/share/nginx/html/index.html
Nginx

[root@web02 ~]# cat /usr/share/nginx/html/index.html
Nginx

5.nginx反向代理+两台web+nfs共享存储实现集群配置

#在实验2和3的基础上

#在浏览器上访问proxy 192.168.16.95

#在web01上查看
[root@web01 html]# tail -f /var/log/nginx/access.log
192.168.16.95 - - [20/Mar/2017:17:10:21 +0800] "GET / HTTP/1.0" 304 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36" "-"

#在web02上查看
[root@web02 html]# tail -f /var/log/nginx/access.log
192.168.16.95 - - [20/Mar/2017:17:10:17 +0800] "GET / HTTP/1.0" 200 6 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36" "-"

#浏览器访问proxy，后端的两台nginx会轮询得到nfs服务器的文件

　　

6. 源码安装nginx

[root@web01 html]#yum remove nginx
[root@web01 html]#useradd -s /sbin/nologin -M www
[root@web01 html]#yum -y install  pcre pcre-devel openssl openssl-devel
[root@web01 html]#wget http://nginx.org/download/nginx-1.10.3.tar.gz
[root@web01 ~]# tar xf nginx-1.10.3.tar.gz
[root@web01 nginx-1.10.3]# cd nginx-1.10.3/
[root@web01 nginx-1.10.3]#./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_ssl_module --with-http_stub_status_module --with-file-aio --with-stream
[root@web01]#make && make install
[root@web01~]#/usr/local/nginx/sbin/nginx -t
[root@web01~]#nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
[root@web01~]#nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@web01 ~]# echo "Hello Word" > /usr/local/nginx/html/index.html
[root@web01 ~]# /usr/local/nginx/sbin/nginx
[root@web01 ~]# curl 192.168.16.186
Hello Word