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keepalived virtual_ipaddress 和网络掩码

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keepalived virtual_ipaddress 和网络掩码

我有以下 keepalived.conf 文件：

vrrp_script chk_nginx {
  script "curl http://localhost/vrrp_healthcheck/"
  interval 2 # every 2 seconds
  weight 2 # add 2 points if OK
}

vrrp_instance VI_1 {
  interface ens160 # interface to monitor
  virtual_router_id 50
  priority 100
  virtual_ipaddress {
    192.168.120.25 label ens160:10
  }
  track_script {
    chk_nginx
  }
  notify /usr/local/bin/notify.sh
}

在主节点上，我在 ifconfig 输出中看到以下内容：

ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.120.20  netmask 255.255.255.224  broadcast 192.168.120.31
        ether 00:50:56:a5:c5:3a  txqueuelen 1000  (Ethernet)
        RX packets 138308  bytes 130425415 (124.3 MiB)
        RX errors 0  dropped 73  overruns 0  frame 0
        TX packets 122917  bytes 50788591 (48.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens160:10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.120.25  netmask 255.255.255.255  broadcast 0.0.0.0
        ether 00:50:56:a5:c5:3a  txqueuelen 1000  (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1  (Local Loopback)
        RX packets 9730  bytes 812897 (793.8 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9730  bytes 812897 (793.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

令我担心的是 ens160:10 条目（由 keepalived 创建的条目）中的不同广播和网络地址。

这些不应该与常规界面相匹配吗？

目前，我的设置似乎有效，但我想确保它设置正确。

答案1

你可以简单地修改虚拟 IP 地址块以使其如下所示：

virtual_ipaddress {
  192.168.120.25/27 label ens160:10
}

默认掩码为/32或255.255.255.255。

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