基于_CARP_的高可用配置
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基于_CARP_的高可用配置 [2019/10/16 05:44] (当前版本) whr 创建 |
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| + | 该测试使用了4个节点，其IP地址分别为 | ||
| + | - 172.21.0.211 | ||
| + | - 172.21.0.212 | ||
| + | - 172.21.0.213 | ||
| + | - 172.21.0.214 | ||
| + | 其中节点 1、2、3 为 FreeBSD 12.1-BETA3 系统，节点 4 为 Debian GNU/Linux 10 系统。 | ||
| + | |||
| + | 设计目的是在任意节点故障时，自动由其它可用节点顶替其 IP 地址。 | ||
| + | |||
| + | |||
| + | FreeBSD 系统上相同的配置为： | ||
| + | <file - /boot/loader.conf> | ||
| + | carp_load="YES" | ||
| + | vfs.maxbcachebuf=1048576 | ||
| + | </file> | ||
| + | |||
| + | 需要在 Debian GNU/Linux 系统上安装定制过的 ucarp： | ||
| + | |||
| + | TODO: put the source code somewhere | ||
| + | |||
| + | 各节点的配置： | ||
| + | <file sh 172.21.0.211:/etc/rc.conf> | ||
| + | clear_tmp_enable="YES" | ||
| + | hostname="ha-file-server-1" | ||
| + | #ifconfig_em0="inet 172.21.0.211 netmask 255.255.240.0" | ||
| + | ifconfig_em0="vhid 1 pass testok 172.21.0.211/20 up" | ||
| + | ifconfig_em0_alias0="vhid 2 advskew 2 pass testok 172.21.0.212/32" | ||
| + | ifconfig_em0_alias1="vhid 3 advskew 3 pass testok 172.21.0.213/32" | ||
| + | ifconfig_em0_alias2="vhid 4 advskew 4 pass testok 172.21.0.214/32" | ||
| + | defaultrouter="172.21.0.1" | ||
| + | sshd_enable="YES" | ||
| + | ntpdate_enable="YES" | ||
| + | # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable | ||
| + | dumpdev="AUTO" | ||
| + | zfs_enable="YES" | ||
| + | samba_server_enable="YES" | ||
| + | </file> | ||
| + | |||
| + | <file sh 172.21.0.212:/etc/rc.conf> | ||
| + | clear_tmp_enable="YES" | ||
| + | hostname="ha-file-server-2" | ||
| + | #ifconfig_em0="inet 172.21.0.212 netmask 255.255.240.0" | ||
| + | ifconfig_em0="vhid 2 pass testok 172.21.0.212/20 up" | ||
| + | ifconfig_em0_alias0="vhid 1 advskew 2 pass testok 172.21.0.211/32" | ||
| + | ifconfig_em0_alias1="vhid 3 advskew 2 pass testok 172.21.0.213/32" | ||
| + | ifconfig_em0_alias2="vhid 4 advskew 3 pass testok 172.21.0.214/32" | ||
| + | defaultrouter="172.21.0.1" | ||
| + | sshd_enable="YES" | ||
| + | ntpdate_enable="YES" | ||
| + | # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable | ||
| + | dumpdev="AUTO" | ||
| + | zfs_enable="YES" | ||
| + | samba_server_enable="YES" | ||
| + | </file> | ||
| + | |||
| + | <file sh 172.21.0.213:/etc/rc.conf> | ||
| + | clear_tmp_enable="YES" | ||
| + | hostname="ha-file-server-3" | ||
| + | #ifconfig_em0="inet 172.21.0.213 netmask 255.255.240.0" | ||
| + | ifconfig_em0="vhid 3 pass testok 172.21.0.213/20 up" | ||
| + | ifconfig_em0_alias0="vhid 1 advskew 3 pass testok 172.21.0.211/32" | ||
| + | ifconfig_em0_alias1="vhid 2 advskew 2 pass testok 172.21.0.212/32" | ||
| + | ifconfig_em0_alias2="vhid 4 advskew 2 pass testok 172.21.0.214/32" | ||
| + | defaultrouter="172.21.0.1" | ||
| + | sshd_enable="YES" | ||
| + | ntpdate_enable="YES" | ||
| + | # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable | ||
| + | dumpdev="AUTO" | ||
| + | zfs_enable="YES" | ||
| + | samba_server_enable="YES" | ||
| + | </file> | ||
| + | |||
| + | <file - 172.21.0.214:/etc/network/interfaces> | ||
| + | # This file describes the network interfaces available on your system | ||
| + | # and how to activate them. For more information, see interfaces(5). | ||
| + | |||
| + | source /etc/network/interfaces.d/* | ||
| + | |||
| + | # The loopback network interface | ||
| + | auto lo | ||
| + | iface lo inet loopback | ||
| + | |||
| + | # The primary network interface | ||
| + | auto ens36 | ||
| + | iface ens36 inet static | ||
| + | address 172.21.0.214/20 | ||
| + | gateway 172.21.0.1 | ||
| + | # dns-* options are implemented by the resolvconf package, if installed | ||
| + | dns-nameservers 172.21.0.51 | ||
| + | up sh /etc/network/start-ucarp.sh | ||
| + | </file> | ||
| + | |||
| + | <file sh 172.21.0.214:/etc/network/start-ucarp.sh> | ||
| + | #!/bin/sh | ||
| + | INTERFACE=ens36 | ||
| + | ucarp --daemonize --interface $INTERFACE -s 172.21.0.214 --vhid 1 --pass testok --advskew 4 --addr 172.21.0.211 --shutdown --upscript /etc/ucarp-vh-up.sh --downscript /etc/ucarp-vh-down.sh --preempt | ||
| + | ucarp --daemonize --interface $INTERFACE -s 172.21.0.214 --vhid 2 --pass testok --advskew 3 --addr 172.21.0.212 --shutdown --upscript /etc/ucarp-vh-up.sh --downscript /etc/ucarp-vh-down.sh --preempt | ||
| + | ucarp --daemonize --interface $INTERFACE -s 172.21.0.214 --vhid 3 --pass testok --advskew 2 --addr 172.21.0.213 --shutdown --upscript /etc/ucarp-vh-up.sh --downscript /etc/ucarp-vh-down.sh --preempt | ||
| + | ucarp --daemonize --interface $INTERFACE -s 172.21.0.214 --vhid 4 --pass testok --advskew 0 --addr 172.21.0.214 --shutdown --upscript /etc/ucarp-vh-up.sh --downscript /etc/ucarp-vh-down.sh --preempt | ||
| + | </file> | ||
| + | |||
| + | <file sh 172.21.0.214:/etc/ucarp-vh-up.sh> | ||
| + | #!/bin/sh | ||
| + | ifconfig "$1:$UCARP_VHID" "$2" netmask 255.255.255.255 up | ||
| + | </file> | ||
| + | |||
| + | <file sh 172.21.0.214:/etc/ucarp-vh-down.sh> | ||
| + | #!/bin/sh | ||
| + | ifconfig "$1:$UCARP_VHID" down | ||
| + | </file> | ||
基于_CARP_的高可用配置.txt · 最后更改: 2019/10/16 05:44 由 whr
除额外注明的地方外，本维基上的内容按下列许可协议发布： CC Attribution-Share Alike 4.0 International
