haproxy and keepalived document presents

haproxy introduction 
# ----------------------------------------------- ---------------------- 
#, Ltd. Free Join Settings 
# ------------------------ ---------------------------------------------
 , Ltd. Free Join 
   # global log configuration, use the log keyword, specify 127. the 0.0 syslog service on the .1 in local0日志设备, logging level for the info log 
   log          127.0 . 0.1 local3 
   # software working directory 
   chroot       / var / lib / HAProxy 
   # of HAProxy pid storage path, the user starts the process must have permission to access this document 
   the PidFile      / usr / local / HAProxy / haproxy.pid 
   # maximum number of connections, default 4000 
   maxconn      30000 
   # belongs to user 
   user haproxy
   # Belonging group 
   Group HAProxy 
   # running as a daemon HAProxy 
   daemon 
   # Turn ON stats UNIX Socket 
   # stats Socket / var / lib / HAProxy / stats Socket Path # 

# ---------------- -------------------------------------------------- --- 
# Defaults that the Common at The All ' the listen ' and ' backend ' Sections by Will 
# use IF not Designated in Their Block 
# ----------------------- ---------------------------------------------- 
Defaults 
   the MODE HTTP # the default mode mode {tcp | HTTP | Health}, tcp 4 layers, http seven layers, health will only return the OK 
   log                      , Ltd. Free Join     # using logs globally defined 
   to enable logging of HTTP requests option httplog #, haproxy default logging is not recorded HTTP request logs 
   option dontlognull # log does not record the health check 
   option http -server- after each finished close # http request to close the active channel 
   
   # If the back-end server need to get real client ip parameters need to be configured, you can get the client ip from Http Header in 
   option the except forwardfor 127.0 . 0.0 / 8 
   the Option redispatch # serverId corresponding server hang after forced directed to other healthy server 
   retries                  3     # 3 times the connection fails considers service is not available, can also be set back by 
   timeout HTTP -request 10s # http request time
   a timeout queue 1m # request queue timeout period 
   timeout connect 10s # connection timeout 
   timeout client 1m # client connection timeout 
   timeout server 1m # of the server timeout 
   HTTP timeout -keep-Alive # 10s-Keep-set HTTP Alive timeout 
   detection timeout timeout check 10s # 
   The maxconn                  3000     # maximum connection number 

# ------------------------------------- -------------------------------- 
# Which proxys to main frontend at The backends 
# --------- -------------------------------------------------- ---------- 
# front-end configuration 
frontend main *: 80
   acl url_static       path_beg       -i /static /images /javascript /stylesheets
   acl url_static       path_end       -i .jpg .gif .png .css .js

   use_backend static          if url_static
   default_backend             servers

#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
# 后台静态文件服务配置
backend static
   balance     roundrobin
   server    static1 192.168 . 6.100 : 10001 the Check Inter 2000 Fall 3 weight 50 
   Server static2 192.168 . 6.110 : 10001 the Check Inter 2000 Fall 3 weight 50 

# ----------------------- ---------------------------------------------- 
# round Robin Balancing Various at The backends the BETWEEN 
# --------------------------------------------- ------------------------ 
# background service configuration 
backend Servers 
   Balance the RoundRobin 
   # add cookie configuration, you will be directed to a client before their post-served end server, and that is a back-end server to keep in touch, to prevent the login authentication failure
   INSERT nocache app_cook the cookie 
   Server app1 192.168 . 6.100 : 10001 the Check Inter 2000 Fall 3 weight 50 the cookie server1 
   Server app2 192.168 . 6.110 : 10001 the Check Inter 2000 Fall 3 weight 50 the cookie server2 

# HAProxy status monitoring service configuration 
the listen stats 
   # Bind port 
   the bind * : 8080 
   the MODE HTTP 
   # stats enable 
   # access address: 192.168 . 6.100 : 8080/ web and 192.168 . 6.110: 8080 / Web 
   stats uri / Web 
   stats realm, Ltd. Free Join \ statistics 
   # administrator account 
   stats auth hapadmin: 1qazse $ # 2

global 
        daemon 
        nbproc 1 
        pidfile /var/run/haproxy.pid

defaults 
        mode tcp          #默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK 
        retries 3          #两次连接失败就认为是服务器不可用，也可以通过后面设置 
        option redispatch      #当serverId对应的服务器挂掉后，强制定向到其他健康的服务器 
        option abortonclose     #当服务器负载很高的时候，自动结束掉当前队列处理比较久的链接 
        maxconn 4096        #默认的最大连接数 timeout connect 5000ms #连接超时 timeout client 30000ms #客户端超时 timeout server 30000ms #服务器超时 timeout check 2000 #=心跳检测超时 log global listen mysql_cluster bind 10.10.91.71:3306 mode tcp maxconn 4086 server node2 10.10.91.72:3306 server node3 10.10.91.75:3306

 

 

 

 

Introduction keepalived

# Master provisioning content:
 ! The Configuration File for keepalived 
global_defs { 
  notification_email { 
      [email protected] # incoming mail people can define multiple 
  } 
  notification_email_from [email protected] # sender, can disguise 
  smtp_server 127.0 . 0.1     # E-mail server address 
  smtp_connect_timeout 30     # connection time 
  no_email_faults 
  the router_id of the the WebMaster 
  vrrp_skip_check_adv_addr 
  vrrp_strict 
  vrrp_garp_interval 0 
  vrrp_gna_interval 0 
} 
vrrp_script chk_haproxy {# HAProxy monitoring service scripts 
  script '/etc/keepalived/check_haproxy.sh ' 
  interval The 2 
  weight 2 
} 
vrrp_instance VI_1 {# vrrp_instance each virtual router is to define a 
  state MASTER # is converted by the master state is the initial state of the state 
  interface card NIC # Name name, such as eth0, according to their without modification 
  virtual_router_id 100     ID # virtual route number, generally not greater than 255 
  priority 100     # priority, the larger the number, the higher the priority, than the second largest main 
  advert_int . 1     Newsletter # initialization 
  authentication {# authentication mechanism 
      AUTH_TYPE the PASS 
      AUTH_PASS 666     # password, make changes, to standby consistent 
  }     
  track_script { 
      chk_haproxy 
  }
  virtual ip address virtual_ipaddress {# Web services: vip, alternate virtual IP mentioned earlier. 
      # <The IPADDR> / <the MASK> brd <the IPADDR> dev <STRING> scope <SCOPT> label <the LABEL> 
      # 192.168 . 200.18 / 24 dev eth2 eth2 label: . 1 
      192.168 . 6.111 
  } 
    notify_master ' /etc/keepalived/clean_arp.sh 192.168.6.111 ' 
}