安裝keepalived和nginxhtml
安裝keepalivednginx
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# yum -y install keepalived
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建立nginx用戶組及nginx用戶web
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# groupadd -r nginx
# useradd -g nginx -r nginx
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編譯安裝nginx-1.4.7vim
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# tar xf nginx-1.4.7.tar.gz
# cd nginx-1.4.7
# ./configure \
--prefix=
/usr
\
--sbin-path=
/usr/sbin/nginx
\
--conf-path=
/etc/nginx/nginx
.conf \
--error-log-path=
/var/log/nginx/error
.log \
--http-log-path=
/var/log/nginx/access
.log \
--pid-path=
/var/run/nginx/nginx
.pid \
--lock-path=
/var/lock/nginx
.lock \
--user=nginx \
--group=nginx \
--with-http_ssl_module \
--with-http_flv_module \
--with-http_stub_status_module \
--with-http_gzip_static_module \
--http-client-body-temp-path=
/usr/local/nginx/client/
\
--http-proxy-temp-path=
/usr/local/nginx/proxy/
\
--http-fastcgi-temp-path=
/usr/local/nginx/fcgi/
\
--http-uwsgi-temp-path=
/usr/local/nginx/uwsgi
\
--http-scgi-temp-path=
/usr/local/nginx/scgi
\
--with-pcre
# make && make install
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檢查配置文件是否有語法錯誤瀏覽器
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[root@localhost nginx-1.4.7]
# nginx -t
nginx: the configuration
file
/etc/nginx/nginx
.conf syntax is ok
nginx: [emerg]
mkdir
()
"/usr/local/nginx/client/"
failed (2: No such
file
or directory)
nginx: configuration
file
/etc/nginx/nginx
.conf
test
failed
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修改錯誤bash
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# mkdir /usr/local/nginx
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再次檢查配置文件是否有語法錯誤服務器
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[root@localhost nginx-1.4.7]
# nginx -t
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爲nginx提供SysV init腳本測試
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# vim /etc/rc.d/init.d/nginx
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#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /etc/sysconfig/nginx
# pidfile: /var/run/nginx.pid
# Source function library.
.
/etc/rc
.d
/init
.d
/functions
# Source networking configuration.
.
/etc/sysconfig/network
# Check that networking is up.
[
"$NETWORKING"
=
"no"
] &&
exit
0
nginx=
"/usr/sbin/nginx"
prog=$(
basename
$nginx)
NGINX_CONF_FILE=
"/etc/nginx/nginx.conf"
[ -f
/etc/sysconfig/nginx
] && .
/etc/sysconfig/nginx
lockfile=
/var/lock/subsys/nginx
make_dirs() {
# make required directories
user=`nginx -V 2>&1 |
grep
"configure arguments:"
|
sed
's/[^*]*--user=\([^ ]*\).*/\1/g'
-`
options=`$nginx -V 2>&1 |
grep
'configure arguments:'
`
for
opt
in
$options;
do
if
[ `
echo
$opt |
grep
'.*-temp-path'
` ];
then
value=`
echo
$opt |
cut
-d
"="
-f 2`
if
[ ! -d
"$value"
];
then
# echo "creating" $value
mkdir
-p $value &&
chown
-R $user $value
fi
fi
done
}
start() {
[ -x $nginx ] ||
exit
5
[ -f $NGINX_CONF_FILE ] ||
exit
6
make_dirs
echo
-n $
"Starting $prog: "
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -
eq
0 ] &&
touch
$lockfile
return
$retval
}
stop() {
echo
-n $
"Stopping $prog: "
killproc $prog -QUIT
retval=$?
echo
[ $retval -
eq
0 ] &&
rm
-f $lockfile
return
$retval
}
restart() {
configtest ||
return
$?
stop
sleep
1
start
}
reload() {
configtest ||
return
$?
echo
-n $
"Reloading $prog: "
killproc $nginx -HUP
RETVAL=$?
echo
}
force_reload() {
restart
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >
/dev/null
2>&1
}
case
"$1"
in
start)
rh_status_q &&
exit
0
$1
;;
stop)
rh_status_q ||
exit
0
$1
;;
restart|configtest)
$1
;;
reload)
rh_status_q ||
exit
7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q ||
exit
0
;;
*)
echo
$
"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit
2
esac
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賦予nginx腳本執行權限ui
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# chmod +x /etc/rc.d/init.d/nginx
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添加至服務管理列表,並讓其開機自動啓動this
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# chkconfig --add nginx
# chkconfig nginx on
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提示:在兩個keepalived+nginx主機上都需安裝keepalkved和nginx服務
配置nginx爲反向代理服務器
編輯nginx.conf配置文件
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# cd /etc/nginx/
# vim nginx.conf
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在nginx.conf配置文件中的http段內添加以下內容
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upstream webservers {
server 10.170.2.101;
server 10.170.2.102;
}
server {
listen 80;
server_name www.muluhe.com;
location / {
proxy_pass http:
//webservers
;
proxy_set_header X-Real-IP $remote_addr;
}
}
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提示:在兩臺keepalived+nginx主機的nginx.conf的配置文件所添加的內容同樣
配置keepalived
編輯keepalived.conf配置文件
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# cd /etc/keepalived/
# vim keepalived.conf
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IP地址爲10.170.2.60的配置文件內容爲:
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! Configuration File
for
keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 15
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 111111
}
virtual_ipaddress {
10.170.2.100
}
notify_master
"/etc/init.d/nginx start"
notify_backup
"/etc/init.d/nginx stop"
notify_fault
"/etc/init.d/nginx stop"
}
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IP地址爲10.170.2.61的配置文件內容爲
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! Configuration File
for
keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 15
priority 99
advert_int 1
authentication {
auth_type PASS
auth_pass 111111
}
virtual_ipaddress {
10.170.2.100
}
notify_master
"/etc/init.d/nginx start"
notify_backup
"/etc/init.d/nginx stop"
notify_fault
"/etc/init.d/nginx stop"
}
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配置web1和web2服務器
編輯web1測試頁面
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# vim /var/www/html/index.html
內容爲:<h1>www1.muluhe.com<
/h1
>
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啓動httpd服務
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# /etc/init.d/httpd start
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編輯web2測試頁面
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# vim /var/www/html/index.html
內容爲:<h1>www2.muluhe.com<
/h1
>
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啓動httpd服務
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# /etc/init.d/httpd start
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啓動keepalived服務並進行測試
啓動keepalived+nginx兩臺主機的keepalived服務
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# /etc/init.d/keepalived start
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在瀏覽器中鍵入10.170.2.100,刷新幾下,可獲得以下結果