腾讯云部署keepalived高可用
使用背景：
- 通过调用python SDK在腾讯云手动部署keepalived高可用
部署环境
系统：centos7.3
Master：192.168.0.100
Slave：192.168.0.14
VIP：192.168.0.76
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master和slave上部署python命令行环境
yum -y install python python-pip pip install qcloudcli
安装命令行自动补齐
complete -C \’/usr/bin/qcloud_completer\’ qcloudcli
自动补齐永久生效vi ~/.bash_profile 添加上述命令到最后一行
# .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin export PATH complete -C \'/usr/bin/qcloud_completer\' qcloudcli
=========================================================================================================================
安装keepalived
yum -y install keepalived
进入到keepalived目录并下载python-sdk
cd /etc/keepalived/ wget https://mc.qcloudimg.com/static/archive/b61ee1ce734e7437530304152c20ee14/qcloudapi-sdk-python-master.zip
unzip qcloudapi-sdk-python-master.zip
调用python-sdk申请VIP vim setup.py，注：master上执行即可 secretID和secretkey需要在云AIP密钥中申请，执行./setup.py
#!/usr/bin/python
# -*- coding: utf-8 -*-
from src.QcloudApi.qcloudapi import QcloudApi
module = \'vpc\'
action = \'AssignPrivateIpAddresses\'
config = {
\'Region\': \'gz\',
\'secretId\': \'您的secretId\',
\'secretKey\': \'您的secretKey\',
\'method\': \'post\'
}
params = {
\'vpcId\': \'vpc-53nh7c3p\',
\'networkInterfaceId\': \'eni-431tr0x5\',
\'secondaryPrivateIpAddressCount\': \'1\'
}
try:
service = QcloudApi(module, config)
print service.generateUrl(action, params)
print service.call(action, params)
except Exception, e:
print \'exception:\', e
创建vip漂移脚本master：vi vip.py（backup只需要调换oldnetworkinterfaceID和newnetworkinterfaceID调换即可）
#!/usr/bin/python
# -*- coding: utf-8 -*-
from QcloudApi.qcloudapi import QcloudApi
#SDK源码直接使用方式使用
#from src.QcloudApi.qcloudapi import QcloudApi
module = \'vpc\'
action = \'MigratePrivateIpAddress\'
config = {
\'Region\': \'gz\',
\'secretId\': \'####\',
\'secretKey\': \'####\',
\'method\': \'post\'
}
params = {
\'vpcId\': \'vpc-53nh7c3p\',
\'privateIpAddress\': \'192.168.0.76\',
\'oldNetworkInterfaceId\': \'backup网卡ID\',
\'newNetworkInterfaceId\': \'master网卡ID\'
}
try:
service = QcloudApi(module, config)
print service.generateUrl(action, params)
print service.call(action, params)
except Exception, e:
print \'exception:\', e
配置keepalived.conf文件vi keepalived.conf (master)
! Configuration File for keepalived
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_sync_group G1 {
group {
VI_1
}
notify_master "/etc/keepalived/vip.py"
}
vrrp_instance VI_1 {
#注意主备参数选择
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
unicast_peer {
192.168.0.14 #对端设备的IP地址，例如：10.0.0.1
}
virtual_ipaddress {
192.168.0.76 #第一步申请的 VIP
}
nopreempt
garp_master_delay 1
garp_master_refresh 5
}
配置keepalived.conf文件vi keepalived.conf (backup)
! Configuration File for keepalived
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_sync_group G1 {
group {
VI_1
}
notify_master "/etc/keepalived/vip.py"
}
vrrp_instance VI_1 {
#注意主备参数选择
state BACKUP
interface eth0
virtual_router_id 51 ###主从必须一致
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
unicast_peer { ##keepalived单播模式
192.168.0.100 #对端设备的IP地址，例如：10.0.0.1
}
virtual_ipaddress {
192.168.0.76 #第一步申请的 VIP
}
nopreempt
garp_master_delay 1
garp_master_refresh 5
主从上启动keepalived服务
systemctl start keepalived.service
测试：
关闭master上的keepalived服务，查看VIP是否自动漂移到backup上
测试正常