Keepaliev+Nginx+http

建站服务器

[root@shiyan~]#systemctldisablefirewalld
[root@shiyan~]#systemctlstopfirewalld
[root@shiyan~]#iptables–F

[root@shiyan~]#vim/etc/selinux/config
SELINUX=disabled
#保存重启系统生效

[root@shiyan~]#yuminstallkeepalivedhttpdnginx#(Nginx需要单独配置EPEL源)

[root@shiyan~]#yuminstallhttpd

[root@shiyan3~]#mkdir-p/app/apache/html/
[root@shiyan3~]#chown-Rapache.apache/app/apache/html/
[root@shiyan3~]#echoApacheServer1>/app/apache/html/index.html
[root@shiyan3~]#vim/etc/httpd/conf/httpd.conf
#此处是更改httpd.conf中的内容，并非添加内容
DocumentRoot/app/apache/html
#更改为自定义的路径

#
#Relaxaccesstocontentwithin/var/www.
#
#更改为自定义的路径
AllowOverrideNone
#Allowopenaccess:
Requireallgranted


#Furtherrelaxaccesstothedefaultdocumentroot:
#更改为自定义的路径.
[root@shiyan3~]#systemctlrestarthttpd

#测试网站是否正常运行
[root@yum~]#curlhttp://172.18.17.33
ApacheServer1#测试成功

[root@shiyan4~]#mkdir-p/app/apache/html/
[root@shiyan4~]#chown-Rapache.apache/app/apache/html/
[root@shiyan4~]#echoApacheServer2>/app/apache/html/index.html
[root@shiyan4~]#vim/etc/httpd/conf/httpd.conf
#此处是更改httpd.conf中的内容，并非添加内容
DocumentRoot/app/apache/html
#更改为自定义的路径

#
#Relaxaccesstocontentwithin/var/www.
#
#更改为自定义的路径
AllowOverrideNone
#Allowopenaccess:
Requireallgranted


#Furtherrelaxaccesstothedefaultdocumentroot:
#更改为自定义的路径.
[root@shiyan4~]#systemctlrestarthttpd
#测试网站是否正常运行
[root@yum~]#curlhttp://172.18.17.34
ApacheServer2#测试成功

配置Sorry-Server
[root@shiyan1~]#mkdir-p/app/apache/html/
[root@shiyan1~]#chown-Rapache.apache/app/apache/html/
[root@shiyan1~]#echo
SorryServer1
>/app/apache/html/index.html
[root@shiyan1~]#vim/etc/httpd/conf/httpd.conf
#此处是更改httpd.conf中的内容，并非添加内容
Listen8080
DocumentRoot/app/apache/html
#更改为自定义的路径

#
#Relaxaccesstocontentwithin/var/www.
#
#更改为自定义的路径
AllowOverrideNone
#Allowopenaccess:
Requireallgranted


#Furtherrelaxaccesstothedefaultdocumentroot:
#更改为自定义的路径.
[root@shiyan1~]#systemctlrestarthttp
#测试网站是否正常运行
[root@yum~]#curlhttp://172.18.17.31:8080
SorryServer1
#测试成功
配置Keepalived
[root@shiyan1~]#cp/etc/keepalived/keepalived.conf{,.bak}#备份文件
[root@shiyan1~]#vim/etc/keepalived/keepalived.conf
global_defs{
notification_email{
root#定义收邮件的用户
}
notification_email_fromAlexandre.Cassen@firewall.loc
smtp_server172.18.17.31#定义邮件地址
smtp_connect_timeout30
router_idnode1#定义节点名称
}

vrrp_instanceVI_1{
stateMASTER#定义节点为主节点模式
interfaceens33#定义使用ens33为VIP网卡
virtual_router_id51#定义节点编号
priority150#定义优先级
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
virtual_ipaddress{
172.18.17.30#定义VIP
}
}
~配置Nginx服务
[root@shiyan1~]#vim/etc/nginx/nginx.conf
#添加nginx集群
upstreamwebsrvs{
server172.18.17.33:80;
server172.18.17.34:80;
server127.0.0.1:8080backup;
}
#server部分的内容需要全部注释掉

[root@shiyan1~]#vim/etc/nginx/conf.d/default.conf
server{
listen80;
location/{
roothtml;
proxy_passhttp://websrvs;
indexindex.htmlindex.htm;
}
}
[root@shiyan1~]#systemctlrestartnginx
[root@shiyan1~]#systemctlrestartkeepalived
[root@shiyan1~]#systemctlrestarthttpd

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配置Sorry-Server
[root@shiyan2~]#mkdir-p/app/apache/html/
[root@shiyan2~]#chown-Rapache.apache/app/apache/html/
[root@shiyan2~]#echo
SorryServer2
>/app/apache/html/index.html
[root@shiyan2~]#vim/etc/httpd/conf/httpd.conf
#此处是更改httpd.conf中的内容，并非添加内容
Listen8080
DocumentRoot/app/apache/html
#更改为自定义的路径

#
#Relaxaccesstocontentwithin/var/www.
#
#更改为自定义的路径
AllowOverrideNone
#Allowopenaccess:
Requireallgranted


#Furtherrelaxaccesstothedefaultdocumentroot:
#更改为自定义的路径.
[root@shiyan2~]#systemctlrestarthttp
#测试网站是否正常运行
[root@yum~]#curlhttp://172.18.17.31:8080
SorryServer2
#测试成功
配置Keepalived
[root@shiyan2~]#cp/etc/keepalived/keepalived.conf{,.bak}#备份文件
[root@shiyan2~]#vim/etc/keepalived/keepalived.conf
global_defs{
notification_email{
root#定义收邮件的用户
}
notification_email_fromAlexandre.Cassen@firewall.loc
smtp_server172.18.17.31#定义邮件地址
smtp_connect_timeout30
router_idnode1#定义节点名称
}

vrrp_instanceVI_1{
stateMASTER#定义节点为主节点模式
interfaceens33#定义使用ens33为VIP网卡
virtual_router_id51#定义节点编号
priority150#定义优先级
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
virtual_ipaddress{
172.18.17.30#定义VIP
}
}
~配置Nginx服务
[root@shiyan2~]#vim/etc/nginx/nginx.conf
#添加nginx集群
upstreamwebsrvs{
server172.18.17.33:80;
server172.18.17.34:80;
server127.0.0.1:8080backup;
}
#server部分的内容需要全部注释掉

[root@shiyan2~]#vim/etc/nginx/conf.d/default.conf
server{
listen80;
location/{
roothtml;
proxy_passhttp://websrvs;
indexindex.htmlindex.htm;
}
}
[root@shiyan2~]#systemctlrestartkeepalived
[root@shiyan2~]#systemctlrestartnginx
[root@shiyan2~]#systemctlrestarthttpd

#默认使用rr算法依次轮询访问后端httpd服务器
[root@yum~]#curlhttp://172.18.17.30
ApacheServer1
[root@yum~]#curlhttp://172.18.17.30
ApacheServer2

#关闭后端http1服务，这样只能访问httpd2的服务
[root@yum~]#curlhttp://172.18.17.30
ApacheServer2
[root@yum~]#curlhttp://172.18.17.30
ApacheServer2

#关闭两台后端主机的httpd服务，这样因为没有后端服务器所以Master的sorry-server提供服务
[root@yum~]#curlhttp://172.18.17.30
SorryServer1
#关闭Master测试
[root@yum~]#curlhttp://172.18.17.30
SorryServer2

分享名称：Keepaliev+Nginx+http
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