keepalived04:執行定制腳本
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在MASTER，BACKUP切換後可以執行定制的腳本：
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配置實例：
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! Configuration File for keepalived
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global_defs {
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notification_email {
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[email protected]
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}
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notification_email_from keepalived@localhost
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smtp_server 127.0.0.1
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smtp_connect_timeout 30
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router_id LVS_DEVEL
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}
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vrrp_sync_group VGM {
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group {
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VI_1
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}
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notify_master /path/to/to_master.sh #表示當切換到master狀態時，要執行的腳本
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notify_backup /path_to/to_backup.sh #表示當切換到backup狀態時，要執行的腳本
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notify_fault "/path/fault.sh VG_1" #表示切換出現故障時要執行的腳本
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}
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vrrp_script chk_http_port {
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script "killall -0 httpd"
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interval 1
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}
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vrrp_instance VI_1 {
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state BACKUP
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interface eth0
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virtual_router_id 51
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priority 50
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advert_int 1
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authentication {
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auth_type PASS
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auth_pass westos
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}
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track_interface {
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eth0
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eth1
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}
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virtual_ipaddress {
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192.168.0.150/24 dev eth0
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10.0.0.150/24 dev eth1
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}
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track_script {
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chk_http_port
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}
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}
