前提
1、freeswicth和keepalived均能通过服务启动； ——通过apt安装freeswitch和keepalived比较简单
2、两个节点freeswitch连接同一个pgsql或者mysql数据库； ——当然也可以是其他外部数据库
说明
os：debian 8
A节点IP：172.16.100.10
B节点IP：172.16.100.11
VIP：172.16.100.12
freeswitch域名：sofia.superpipi.cn ——域名也可以直接使用VIP
允许应用绑定非本机IP
在两个节点均执行以下命令：
echo 'net.ipv4.ip_nonlocal_bind=1' >> /etc/sysctl.conf
配置freeswitch
修改“/usr/local/freeswitch/conf/vars.xml ” ——具体路径视实际情况
将“local_ip_v4”的值修改为VIP：“172.16.100.12”
将“domain”的值修改为：“sofia.superpipi.cn”
配置keepalived
keepalived默认配置文件路径“/etc/keepalived/keepalived.conf ”
A节点keepalived配置：
! Configuration File for keepalived
global_defs {
notification_email {
acassen
}
notification_email_from [email protected]
smtp_server 172.16.100.251
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_script check_fs {
script "/etc/keepalived/script/check_fs.sh"
interval 1
weight 2
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
garp_master_delay 10
smtp_alert
virtual_router_id 51
priority 100
nopreempt
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
track_script {
check_fs
}
virtual_ipaddress {
172.16.100.12/24
172.16.100.12/24 label eth0:1
}
notify_master "/etc/keepalived/script/fs_recover.sh"
}
B节点keepalived配置：
! Configuration File for keepalived
global_defs {
notification_email {
acassen
}
notification_email_from [email protected]
smtp_server 172.16.100.251
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_script check_fs {
script "/etc/keepalived/script/check_fs.sh"
interval 1
weight 2
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
garp_master_delay 10
smtp_alert
virtual_router_id 51
priority 50
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
track_script {
check_fs
}
virtual_ipaddress {
172.16.100.12/24
172.16.100.12/24 label eth0:1
}
notify_master "/etc/keepalived/script/fs_recover.sh"
}
检测脚本
检测脚本路径：
/etc/keepalived/script/
检测可用性脚本
/etc/keepalived/script/check_fs.sh
#!/bin/sh
FS_CLI_PROG='/usr/local/freeswitch/bin/fs_cli'
FS_CLI_HOST='127.0.0.1'
FS_CLI_PORT='8021'
FS_CLI_PASS='ClueCon'
PROFILES='sofia.superpipi.cn'
VIP='172.16.100.12'
fs_cli() {
$FS_CLI_PROG -H $FS_CLI_HOST -P $FS_CLI_PORT -p $FS_CLI_PASS -x "$1"
}
sofia_profile_started() {
fs_cli "sofia xmlstatus" | grep "<name>$1</name>" | wc -l
}
save_log(){
count=1
str_tmp="`date +%Y-%m-%d_%H:%M:%S` "
while [ $# -ge 1 ];do
str_tmp="$str_tmp $1"
count=count+1
shift
done
echo $str_tmp >>/var/log/check_fs_`date +%Y-%m-%d`.log
}
check_vrrp(){
check_ip=`ip a|grep $VIP`
if [ $? -eq 0 ];then
return 1
else
return 0
fi
}
check_fs_service(){
check_service=`ps -ef |grep freeswitch.service|grep -v 'grep'`
if [ $? -eq 0 ];then
return 1
else
return 0
fi
}
# fs_cli "sofia recover"
for p in $PROFILES; do
if [ `sofia_profile_started "$p"` -eq 0 ]; then
# echo "$p DOWN"
log_str="$p DOWN"
save_log $log_str
check_vrrp
vrrp=$?
check_fs_service
chenck_service=$?
if [ $vrrp -eq 1 ];then
save_log "本机已经绑定VRRP，即将重启keepalived和FreeSWITCH。"
service keepalived restart
save_log "vrrp切换完成！"
if [ $chenck_service -eq 1 ];then
save_log "freeswitch服务正在操作中。"
else
service freeswitch restart
save_log "freeswitch重启成功！"
fi
else
if [ $chenck_service -eq 1 ];then
save_log "freeswitch服务正在操作中。 "
else
save_log "本机没有绑定VRRP，重启FreeSWITCH。"
service freeswitch restart
save_log "freeswitch重启成功！"
fi
fi
exit 1
fi
done
save_log "freeswitch状态检测:OK!"
#echo "OK"
exit 0
切换为主节点后恢复通话脚本
/etc/keepalived/script/fs_recover.sh
#!/bin/sh
FS_CLI_PROG='/usr/local/freeswitch/bin/fs_cli'
FS_CLI_HOST='127.0.0.1'
FS_CLI_PORT='8021'
FS_CLI_PASS='ClueCon'
PROFILES='sofia.superpipi.cn'
VIP='172.16.100.12'
fs_cli() {
$FS_CLI_PROG -H $FS_CLI_HOST -P $FS_CLI_PORT -p $FS_CLI_PASS -x "$1"
}
save_log(){
count=1
str_tmp="`date +%Y-%m-%d_%H:%M:%S` "
while [ $# -ge 1 ];do
str_tmp="$str_tmp $1"
count=count+1
shift
done
echo $str_tmp >>/var/log/check_fs_`date +%Y-%m-%d`.log
}
save_log "本节点切换为主用状态，开始接管切换前的通话。"
fs_cli "sofia recover"
fs_cli "raloadxml"
exit 0