keepalived nginx集群部署

192.168.132.130（伺服器1）、192.168.132.132（伺服器2）,虛擬ip：192.168.132.131

yum install gcc-c++：gcc是gnu的c語言編譯器,至於c++編譯器,它的名字叫做g++

yum install -y pcre pcre-devel：在nginx編譯需要 pcre(perl compatible regular expression)，因為nginx 的rewrite模組和http 核心模組會使用到pcre正規表示式語法

yum install -y zlib zlib-devel：壓縮和解壓縮庫

yum install -y openssl openssl-devel：是乙個ssl協議的開源實現

cd /usr/local：進入目錄 tar -zxvf nginx-1.9.9.tar.gz：解壓 cd nginx-1.9.9：進入解壓後的資料夾下 ./configure --prefix=/usr/local/nginx --conf-path=/usr/local/nginx/nginx.conf --with-http_stub_status_module --with-http_ssl_module：使用/usr/local/nginx/nginx.conf下的配置 make：編譯 make install：安裝 cd /usr/local/nginx/sbin/：進入安裝後的nginx資料夾 ./nginx -c /usr/local/nginx/nginx.conf：指定配置檔案 ./nginx -s reload：啟動其他命令： ./nginx -s stop 等待nginx處理任務完畢，停止nginx程序 ./nginx -s quit 先查出程序id，再使用kill命令強制殺掉程序 ./nginx -s reload 不用重啟nginx，使配置檔案生效（若修改了nginx.conf） ps -ef | grep nginx 查詢 nginx 程序 whereis nginx 查詢nginx的安裝路徑

./nginx -t 檢查nginx.cnf的語法是否正確

systemctl disable firewalld：永久關閉防火牆 systemctl stop firewalld：暫時關閉防火牆

systemctl status firewalld：檢視防火牆狀態

通過192.168.132.130或192.168.132.132訪問時會到nginx的index.html，分別修改index.html使其能分清楚是哪個伺服器。

yum install -y libnl3-devel；提供了一套應用於linux系統基於netlink協議通訊的api介面

yum install -y net-snmp-devel；網路管理協議，它屬於tcp/ip五層協議中的應用層協議

伺服器1（主）：

! configuration file for keepalived global_defs notification_email_from [email protected] smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id lvs_devel # 使用者標識本節點的名稱，通常為hostname vrrp_skip_check_adv_addr #vrrp_strict 要注釋掉否則虛擬ip訪問不了 vrrp_garp_interval 0 vrrp_gna_interval 0 }vrrp_instance vi_1 virtual_ipaddress

}

伺服器2（備）：

}

其他命令：

systemctl restart keepalived：重啟 systemctl stop keepalived：停止 systemctl status keepalived：檢視狀態

tail -f /var/log/messages：檢視是否啟動

通過ip addr命令檢視：

伺服器1：

ens33: mtu 1500 qdisc pfifo_fast state up group default qlen 1000 link/ether 00:0c:29:12:b1:31 brd ff:ff:ff:ff:ff:ff inet 192.168.132.130/24 brd 192.168.132.255 scope global noprefixroute dynamic ens33 valid_lft 1519sec preferred_lft 1519sec inet 192.168.132.131/32 scope global ens33 valid_lft forever preferred_lft forever inet6 fe80::9b3e:6d14:d65:c286/64 scope link noprefixroute

valid_lft forever preferred_lft forever

ens33:

mtu 1500 qdisc pfifo_fast state up group default qlen 1000

link/ether 00:0c:29:43:0a:46 brd ff:ff:ff:ff:ff:ff

inet 192.168.132.132/24 brd 192.168.132.255 scope global noprefixroute dynamic ens33

valid_lft 1374sec preferred_lft 1374sec

inet6 fe80::e8b1:993c:4765:abb7/64 scope link noprefixroute

valid_lft forever preferred_lft forever

check_ng.s**件如下：

#!/bin/bash
run=
`ps -c nginx --no-header |
wc -l`if[
$run -eq 0 ]
then
killall keepalived
fi

【注】此檔案一定要在linux下看下檔案格式，在notepad編輯的為：使用vi檢視檔案，:set ff檢視格式，如為fileformat=dos則:set fileformat=unix

將keepalived修改為：

! configuration file for keepalived global_defs notification_email_from [email protected] smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id lvs_devel vrrp_skip_check_adv_addr vrrp_garp_interval 0 vrrp_gna_interval 0 }vrrp_script chk_nginx vrrp_instance vi_1 virtual_ipaddress track_script

}

keepalived nginx集群部署

keepalived nginx主從切換

keepalived nginx負載安裝

keepalived nginx離線安裝

keepalived nginx集群部署

keepalived nginx主從切換

keepalived nginx負載安裝

keepalived nginx離線安裝

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