Keepalived+HAProxy实现K8S高可用集群-20240927

option tcplog

tcp-request inspect-delay 5s

default_backend k8s-master

backend k8s-master

mode tcp

option tcplog

option tcp-check

balance roundrobin

default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100

server k8s-master01 192.168.10.4:6443 check

server k8s-master02 192.168.10.5:6443 check

server k8s-master03 192.168.10.6:6443 check

• master01节点修改keepalived配置文件

vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

router_id LVS_DEVEL

}

vrrp_script chk_apiserver {

script “/etc/keepalived/check_apiserver.sh”

interval 2

weight -5

fall 3

rise 2

}

vrrp_instance VI_1 {

state MASTER

interface eth0

mcast_src_ip 192.168.10.4

virtual_router_id 51

priority 100

advert_int 2

authentication {

auth_type PASS

auth_pass K8SHA_KA_AUTH

}

virtual_ipaddress {

192.168.10.150/24

}

track_script {

chk_apiserver

}

• master02节点修改keepalived配置文件

vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

router_id LVS_DEVEL