???haproxy??????keepalived????????????LNMP???????????????????????????
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?????????lnmp??????????????????????????????
???????????????haproxy??????keepalived??????LNMP???????????????????????????????????????????????????????????????haproxy????????????????????????????????????????????????????????????????????????????????????
?????????haproxy??????keepalived????????????lnmp?????????????????????????????????????????????
???1?????????????????????????????????css,js???????????????????????????????????????
???2????????????172.17??????????????????
???3??????????????????????????????????????????cookie???????????????
?????????????????????
1????????????????????????????????????selinux????????????????????????
??????????????????iptables -F
??????selinux???setenforce 0
???????????????ntpdate 172.17.0.1(??????????????????)
2?????????????????????
(1)?????????keepalived
vim /etc/keepalived/keepalived.conf(??????NAT??????)
global_defs { #????????????
notification_email {
[email protected] #????????????
}
notification_email_from root
smtp_server 127.0.0.1 #?????????????????????
smtp_connect_timeout 30
router_id KEEPALIVED_LVS
}
vrrp_instance VI_1 {
state MASTER #?????????MASTER
interface eth1 #???????????????
virtual_router_id 74 #VIP??????????????????????????????????????????????????????
priority 200 #?????????
advert_int 1
authentication { #????????????
auth_type PASS
auth_pass magedu
}
virtual_ipaddress {
172.17.177.176 #?????????VIP
}
}
vrrp_instance VI_2 {
state MASTER
interface eth0
virtual_router_id 75
priority 200
advert_int 1
authentication {
auth_type PASS
auth_pass magedu
}
virtual_ipaddress {
192.168.153.153 #?????????DIP???VIP??????????????????????????????????????????DIP???????????????
}
}
???????????????VIP??????????????????????????????DIP???VIP??????
????????????systemctl start keepalived
??????????????????vim /etc/sysctl.conf
net,ipv4,ip_forward=1
sysctl -p ??????
???2????????????haproxy
vim /etc/haproxy/haproxy.cfg
global(???????????????)
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults?????????????????????
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
frontend http
bind 172.17.177.176:80 #80???????????????VIP???
stats enable #??????????????????
stats uri /haproxy #?????????????????????
stats auth admin:admin #???????????????????????????
stats refresh #10s???????????????10?????????????????????
stats admin if TRUE #?????????????????????
acl imagejingtai path_end -i .jpj .png .bmp .gif .js .css #??????????????????
acl imagephp path_end -i .php #????????????php??????
use_backend webserver1 if imagephp #???????????????imagephp????????????webserver1???
acl host src 172.17.0.0/16 #??????172.17????????????
block if ! host #????????????host???????????????????????????
default_backend webserver #?????????backend???webserver
backend webserver1 #??????????????????
balance roundrobin #???????????????
server web1 192.168.153.177:80 check weight 1
backend webserver2
balance roundrobin
server web2 192.168.153.176:80 check weight 1
backend webserver
balance roundrobin
cookie SRV insert nocache #??????cookie??????
server http1 192.168.153.177:80 check weight 1 cookie srv1 #??????cookie???srv1??????????????????
server http1 192.168.153.176:80 check weight 1
????????????systemctl start haproxy
??????80?????????????????????VIP??? ss -ntl
3????????????????????????
???1???????????????keepalived
vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
}
notification_email_from root
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id KEEPALIVED_LVS
}
vrrp_instance VI_1 {
state BACKUP #MASTER????????????BACKUP
interface eth1
virtual_router_id 74
priority 190 #?????????????????????
advert_int 1
authentication {
auth_type PASS
auth_pass magedu
}
virtual_ipaddress {
172.17.177.176
}
}
vrrp_instance VI_2 {
state BACKUP #MASTER????????????BACKUP
interface eth0
virtual_router_id 75
priority 190 #?????????????????????
advert_int 1
authentication {
auth_type PASS
auth_pass magedu
}
virtual_ipaddress {
192.168.153.153
}
}
????????????systemctl start keepalived
??????????????????vim /etc/sysctl.conf
net,ipv4,ip_forward=1
sysctl -p ??????
???2???????????????haproxy(?????????haproxy????????????)
vim /etc/haproxy/haproxy.cfg
global(???????????????)
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults?????????????????????
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
frontend http
bind 172.17.177.176:80 #80???????????????VIP???
stats enable #??????????????????
stats uri /haproxy #?????????????????????
stats auth admin:admin #???????????????????????????
stats refresh #10s???????????????10?????????????????????
stats admin if TRUE #?????????????????????
acl imagejingtai path_end -i .jpj .png .bmp .gif .js .css #??????????????????
acl imagephp path_end -i .php #????????????php??????
use_backend webserver1 if imagephp #???????????????imagephp????????????webserver1???
acl host src 172.17.0.0/16 #??????172.17????????????
block if ! host #????????????host???????????????????????????
default_backend webserver #?????????backend???webserver
backend webserver1 #??????????????????
balance roundrobin #???????????????
server web1 192.168.153.177:80 check weight 1
backend webserver2
balance roundrobin
server web2 192.168.153.176:80 check weight 1
backend webserver
balance roundrobin
cookie SRV insert nocache #??????cookie??????
server http1 192.168.153.177:80 check weight 1 cookie srv1 #??????cookie???srv1??????????????????
server http1 192.168.153.176:80 check weight 1
????????????service haproxy start
4??????????????????web?????????
???????????????????????????LNMP??????????????????????????????????????????????????????????????????LNMP?????????????????????????????????
???1???NAT??????
???80???3306???9000????????????
systemctl start nginx php-fpm mariadb
?????????????????????DIP???VIP
ip route add default via 192.168.153.153
???2???DR??????
????????????keepalived???????????????DIP???VIP???????????????????????????????????????
ip route add default via 172.17.0.1
??????????????????????????????VIP??????
ifconfig lo:0 172.17.166.165 broadcast 172.17.166.165 netmask 255.255.255.255 up
??????????????????VIP???lo:0
route add -host 172.17.166.165 dev lo:0
???????????????IP??????????????????????????????????????????ARP????????????
echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore
?????????????????????????????????????????????.??????????????????????????????IP???????????????????????????????????????????????????????????????????????????.
5??????????????????????????????VIP??????????????????????????????????????????????????????????????????web?????????
???????????????http://192.168.153.177/haproxy???????????????web?????????
????????????????????????????????????????????????????????????web???????????????????????????haproxy???????????????server???????????????
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