1.基础安装
成都创新互联公司专注于网站建设|
企业网站维护|优化|托管以及网络推广，积累了大量的网站设计与制作经验，为许多企业提供了网站定制设计服务，案例作品覆盖
汽车玻璃修复等行业。能根据企业所处的行业与销售的产品，结合品牌形象的塑造，量身开发品质网站。yum install pcre pcre-devel openssl openssl-devel
tar xf haproxy-1.7.1.tar.gz
cd haproxy-1.7.1
make TARGET=linux2628 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 PREFIX=/usr/local/haproxy
make install PREFIX=/usr/local/haproxy
cd examples/
cp haproxy.init /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy
2.本机IP：192.168.56.15
[root@bogon examples]# cat /etc/haproxy/haproxy.cfg
global
maxconn 100000
chroot /usr/local/haproxy
uid 99
gid 99
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
log 127.0.0.1 local0 info
defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 300000ms
timeout client 300000ms
timeout server 300000ms
listen stats
mode http
bind 0.0.0.0:9999
stats enable
log global
stats uri /haproxy-status
stats auth haadmin:123456
listen web_port
bind 0.0.0.0:80
mode tcp
log global
[root@bogon examples]#
[root@bogon examples]# /etc/init.d/haproxy restart
Restarting haproxy (via systemctl): [ OK ]
[root@bogon examples]#
http://192.168.56.15:9999/haproxy-status
3.对后端代理
[root@bogon examples]# cat /etc/haproxy/haproxy.cfg
global
maxconn 100000
chroot /usr/local/haproxy
uid 99
gid 99
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
log 127.0.0.1 local0 info
defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 300000ms
timeout client 300000ms
timeout server 300000ms
listen stats
mode http
bind 0.0.0.0:9999
stats enable
log global
stats uri /haproxy-status
stats auth haadmin:123456
listen web_port
bind 0.0.0.0:80
mode tcp #tcp的方式
log global
server web1 192.168.56.12:80 check inter 2000 fall 15 rise 10
server web2 192.168.56.16:80 check inter 2000 fall 15 rise 10
[root@bogon examples]#
/etc/init.d/haproxy restart
#inter是监控检查时间间隔，即每间隔2秒进行一次检查，
rise是连续检查10次失败后将服务器从负载删除，
fall是连续15次监控检查成功后重新添加至负载，一般fall大于rise几次，
[root@bogon html]# curl 192.168.56.15
192.168.56.12 web1
[root@bogon html]# curl 192.168.56.15
192.168.56.16 web2
[root@bogon html]# curl 192.168.56.15
192.168.56.12 web1
[root@bogon html]# curl 192.168.56.15
192.168.56.16 web2
[root@bogon html]# curl 192.168.56.15
192.168.56.12 web1
[root@bogon html]# curl 192.168.56.15
192.168.56.16 web2
[root@bogon html]# curl 192.168.56.15
192.168.56.12 web1
[root@bogon html]# curl 192.168.56.15
192.168.56.16 web2
[root@bogon html]# curl 192.168.56.15
192.168.56.12 web1
[root@bogon html]# curl 192.168.56.15
192.168.56.16 web2
[root@bogon html]#
查看负载状况
################################################
haproxy调度算法
HAProxy的算法有如下8种：
roundrobin，表示简单的轮询，
static-rr，表示根据权重，建议关注；
leastconn，表示最少连接者先处理，建议关注；
source，表示根据请求源IP，建议关注；
uri，表示根据请求的URI；
url_param，表示根据请求的URl参数'balanceurl_param' requires an URL parameter name
hdr(name)，表示根据HTTP请求头来锁定每一次HTTP请求；
rdp-cookie(name)，表示根据据cookie(name)来锁定并哈希每一次TCP请求。
haproxy的摘除节点的 yum安装的
global
maxconn 100000
chroot /var/lib/haproxy
user haproxy
group haproxy
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
stats socket /var/lib/haproxy.sock mode 600 level admin
log 127.0.0.1 local10 info
defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
listen stats
mode http
bind 0.0.0.0:8888
stats enable
stats uri /haproxy-status
stats auth haproxy:saltstack
frontend frontend_www_example_com
bind 192.168.56.21:80
mode http
option httplog
log global
default_backend backend_www_example_com
backend backend_www_example_com
option forwardfor header X-REAL-IP
option httpchk HEAD / HTTP/1.0
balance roundrobin
server web-node1 192.168.56.11:8080 check inter 2000 rise 30 fall 15
server web-node2 192.168.56.12:8080 check inter 2000 rise 30 fall 15
[root@web-node1 ~]#
这样就能吧haproxy的节点删除或者增加
echo "disable server backend_www_example_com/web-node1" | socat /var/lib/haproxy.sock stdio
echo "enable server backend_www_example_com/web-node1" | socat /var/lib/haproxy.sock stdio
haproxy增加日志的功能
mkdir /var/log/haproxy
chmod a+w /var/log/haproxy
/etc/rsyslog.conf
打开选项：
$ModLoad imudp
$UDPServerRun 514
# Save haproxy log
local0.* /var/log/haproxy/haproxy.log
vim /etc/sysconfig/rsyslog
[root@web-node1 nginx]# cat /etc/sysconfig/rsyslog
# Options for rsyslogd
# Syslogd options are deprecated since rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
See rsyslogd(8) for more details
SYSLOGD_OPTIONS="-r -m 0 -c 2" #修改此处
[root@web-node1 nginx]#
haproxy日志里面的localhost 和配置文件有关 这个IP可以修改
log 127.0.0.1 local10 info
3.集群配置
192.168.56.11 nginx 反向代理 keepalived haproxy
192.168.56.12 nginx 反向代理 keepalived haproxy
192.168.56.13 nginx 模拟tomcat
192.168.56.14 nginx 模拟tomcat
keepalived的VIP为192.168.56.21
问题：haproxy 不会绑定不存在的VIP 所以启动不起来 so,这样可以绑定不存在的VIP
echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind
vi /etc/sysctl.conf sysctl -p
net.ipv4.ip_nonlocal_bind = 1
开启允许绑定非本机的IP
查看keepalived的配置文件192.168.56.11（主）
[root@web-node1 nginx]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
saltstack@example.com
}
notification_email_from keepalived@example.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id haproxy_ha
}
vrrp_instance haproxy_ha {
state MASTER
interface eth0
virtual_router_id 36
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.56.21
}
}
[root@web-node1 nginx]#
查看keepalived的配置文件192.168.56.12（备）
[root@web-node2 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
saltstack@example.com
}
notification_email_from keepalived@example.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id haproxy_ha
}
vrrp_instance haproxy_ha {
state BACKUP
interface eth0
virtual_router_id 36
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.56.21
}
}
[root@web-node2 ~]#
查看192.168.56.11 haproxy的配置文件
[root@web-node2 ~]# cat /etc/haproxy/haproxy.cfg
global
maxconn 100000
chroot /var/lib/haproxy
user haproxy
group haproxy
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
stats socket /var/lib/haproxy.sock mode 600 level admin
log 127.0.0.1 local3 info
defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
listen stats
mode http
bind 0.0.0.0:8888
stats enable
stats uri /haproxy-status
stats auth haproxy:saltstack
frontend frontend_www_example_com
bind 192.168.56.21:80
mode tcp
option httplog
log global
default_backend backend_www_example_com
backend backend_www_example_com
option forwardfor header X-REAL-IP
option httpchk HEAD / HTTP/1.0
balance roundrobin
server web-node1 192.168.56.11:8080 check inter 2000 rise 30 fall 15
server web-node2 192.168.56.12:8080 check inter 2000 rise 30 fall 15
[root@web-node2 ~]#
查看192.168.56.12 haproxy的配置文件
[root@web-node1 nginx]# cat /etc/haproxy/haproxy.cfg
global
maxconn 100000
chroot /var/lib/haproxy
user haproxy
group haproxy
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
stats socket /var/lib/haproxy.sock mode 600 level admin
#log 127.0.0.1 local3 info
log 192.168.56.21 local0 debug
defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
listen stats
mode http
bind 0.0.0.0:8888
stats enable
stats uri /haproxy-status
stats auth haproxy:saltstack
frontend frontend_www_example_com
bind 192.168.56.21:80
mode http
option httplog
log global
default_backend backend_www_example_com
backend backend_www_example_com
option forwardfor header X-REAL-IP
option httpchk HEAD / HTTP/1.0
balance roundrobin
server web-node1 192.168.56.11:8080 check inter 2000 rise 30 fall 15
server web-node2 192.168.56.12:8080 check inter 2000 rise 30 fall 15
[root@web-node1 nginx]#
查看192.168.56.11的nginx反向代理的配置文件(最简单的配置 demo)
[root@web-node1 nginx]# cat /etc/nginx/nginx.conf
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream server_pools {
server 192.168.56.13:8080 weight=1;
server 192.168.56.14:8080 weight=1;
}
server {
listen 192.168.56.11:8080;
server_name blog.liuhaixiao.com;
location / {
proxy_pass http://server_pools;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
}
}
[root@web-node1 nginx]#
查看192.168.56.12的nginx反向代理的配置文件(最简单的配置 demo)
[root@web-node2 ~]# cat /etc/nginx/nginx.conf
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream server_pools {
server 192.168.56.13:8080 weight=1;
server 192.168.56.14:8080 weight=1;
}
server {
listen 192.168.56.12:8080;
server_name blog.liuhaixiao.com;
location / {
proxy_pass http://server_pools;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
}
}
[root@web-node2 ~]#查看192.168.56.13的nginx web容器
[root@web-node3 html]# cat /usr/share/nginx/html/index.html
node-2
查看192.168.56.14的nginx web容器
[root@web-node4 html]# cat /usr/share/nginx/html/index.html
node-1
检查VIP zai 192.168.56.11上面
[root@web-node1 nginx]# ip addr
1: lo:
mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:10:66:98 brd ff:ff:ff:ff:ff:ff
inet 192.168.56.11/24 brd 192.168.56.255 scope global eth0
valid_lft forever preferred_lft forever
inet 192.168.56.21/32 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe10:6698/64 scope link
valid_lft forever preferred_lft forever
[root@web-node1 nginx]#现在把本地的电脑blog.liuhaixiao.com 解析到192.168.56.21上面去
####################################################
新添加：192.168.56.15 增加一个nginx 域名
haproxy 监听80端口 nginx 监听的端口千万不能和后端tomcat一样 否则回包回不来
[root@web-node1 ~]# cat /etc/nginx/nginx.conf
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream server_pools {
server 192.168.56.13:8080 weight=1;
server 192.168.56.14:8080 weight=1;
}
upstream server_tt {
server 192.168.56.15:8080 weight=1;
}
server {
listen 81;
server_name blog.liuhaixiao.com;
location / {
proxy_pass http://server_pools;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
}
server {
listen 81;
server_name blog.sanlang.com;
location / {
proxy_pass http://server_tt;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
}
}
[root@web-node1 ~]#
3是 另外一台服务器的192.168.56.15 tomcat/nginx 的页面
haproxy具体参数请参考：
http://www.cnblogs.com/zhang789/p/6057402.html
haproxy:多域名参考
基于域名负载均衡的Haproxy配置
http://blog.csdn.net/youyudehexie/article/details/7606504
#####################
另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
名称栏目：haproxy的安装-创新互联
当前地址：http://cdkjz.cn/article/dgghhg.html
