salt实现haproxy的负载均衡部署

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配置环境：

主机名	ip	服务
server1	172.25.1.1	salt-manster
server2	172.25.1.2	salt-minion , haproxy
server3	172.25.1.3	salt-minion , apache
server4	172.25.1.4	salt-minion ,nginx

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关于环境中的nginx和apache部署脚本访问,此文章只实现haproxy的功能
https://blog.csdn.net/u010489158/article/details/81744757

关于haproxy自动部署的实现

(1)拓展yum源

[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release[salt]
name=salt
baseurl=http://172.25.1.250/rhel6
enabled=1
gpgcheck=0[HighAvailability]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5/HighAvailability
enabled=1
gpgcheck=1[LoadBalancer]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5/LoadBalancer
enabled=1
gpgcheck=1[ResilientStorage]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5/ResilientStorage
enabled=1
gpgcheck=1[ScalableFileSystem]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5/ScalableFileSystem
enabled=1
gpgcheck=1

(2)创建haproxy脚本存放位置

[root@server1 ~]# cd /srv/salt/  
[root@server1 salt]# mkdir haproxy   #存放关于haproxy安装配置的脚本
[root@server1 salt]# cd haproxy/

(3)yum源配置文件的推送脚本

[root@server1 haproxy]# vim yum.sls    #推送拓展yum源额脚本
yum-install:file.managed:                 #对文件的管理 - name: /etc/yum.repos.d/rhel-source.repo   #将source中的文件放到name的位置- source: salt://haproxy/file/rhel-source.repocmd.run:    #执行shell命令- name: yum clean all

(4)haproxy的源码安装脚本

[root@server1 haproxy]# vim make.sls    #haproxy的安装脚本
include:- haproxy.yum        #包含haproxy目录下的yum.sls脚本
haproxy-install:       #关于haproxy的安装pkg.installed:       #利用yum进行安装  - pkgs:   #指定安装包- rpm-buildfile.managed:- name: /root/haproxy-1.6.11.tar.gz- source: salt://haproxy/file/haproxy-1.6.11.tar.gzcmd.run:      #运行shell命令- name: yum install rpm-build && cd /root && rpmbuild -tb haproxy-1.6.11.tar.gz && tar zxf haproxy-1.6.11.tar.gz && cd /rpmbuild/RPMS/x86_64/ && rpm -ivh haproxy-1.6.11-1.x86_64.rpm- create: /etc/haproxy     #如果此目录存在则不执行安装

(5) haproxy用户的建立脚本

[root@server1 users]# cd /srv/salt/users
[root@server1 users]# vim haproxy.sls  #创建haproxy用户
haproxy-group:   #用户组的建立group.present:- name: haproxy- gid: 200haproxy-user:  #用户的建立user.present:- name: haproxy- uid: 200- gid: 200- shell: /sbin/nologin- createhome: False- home: /usr/local/nginx

(6)haproxy服务的启动和配置文件脚本

[root@server1 haproxy]# vim service.sls   #关于服务启动的脚本
include:   #包含haproxy中的make.sls  和 users下的haproxy.sls- haproxy.make- users.haproxy
/etc/haproxy/haproxy.cfg:     #客户端的目录id,将source中的文件拷贝到此ID位置file.managed:- source: salt://haproxy/file/haproxy.cfg
haproxy-service:   #关于haproxy的服务启动service.running:- enable: True   #开机自动启动- name: haproxy   #haproxy服务- reload: True   #如果watch中的文件发生修改则进行reload- watch:    #监控file中的文件- file: /etc/haproxy/haproxy.cfg- require:- user: haproxy

(7)关于file目录中的内容

[root@server1 file]# ls    #file目录中存放了haproxy的压缩包,haproxy的配置文件,拓展yum源的配置文件
haproxy-1.6.11.tar.gz  haproxy.cfg  rhel-source.repo

<1> haproxy.cfg文件

[root@server1 file]# cat haproxy.cfg 
# This is a sample configuration. It illustrates how to separate static objects
# traffic from dynamic traffic, and how to dynamically regulate the server load.
#
# It listens on 192.168.1.10:80, and directs all requests for Host 'img' or
# URIs starting with /img or /css to a dedicated group of servers. URIs
# starting with /admin/stats deliver the stats page.
#globalmaxconn         10000stats socket    /var/run/haproxy.stat mode 600 level adminlog             127.0.0.1 local0uid             200gid             200chroot          /var/emptydaemon# The public 'www' address in the DMZ
frontend publicbind            *:80 name clear#bind            192.168.1.10:443 ssl crt /etc/haproxy/haproxy.pemmode            httplog             globaloption          httplogoption          dontlognullmonitor-uri     /monitorurimaxconn         8000timeout client  30sstats uri       /admin/stats#use_backend     static if { hdr_beg(host) -i img }#use_backend     static if { path_beg /img /css   }default_backend static  #默认将访问发送到static的后端服务器群# The static backend backend for 'Host: img', /img and /css.
backend staticmode            httpbalance         roundrobinoption prefer-last-serverretries         2option redispatchtimeout connect 5stimeout server  5s#option httpchk  HEAD /favicon.icoserver          statsrv1 172.25.1.3:80 check inter 1000  #定义后端的服务器server          statsrv2 172.25.1.4:80 check inter 1000# the application servers go here
backend dynamicmode            httpbalance         roundrobinretries         2option redispatchtimeout connect 5stimeout server  30stimeout queue   30soption httpchk  HEAD /login.phpcookie          DYNSRV insert indirect nocachefullconn        4000 # the servers will be used at full load above this number of connectionsserver          dynsrv1 192.168.1.1:80 minconn 50 maxconn 500 cookie s1 check inter 1000server          dynsrv2 192.168.1.2:80 minconn 50 maxconn 500 cookie s2 check inter 1000server          dynsrv3 192.168.1.3:80 minconn 50 maxconn 500 cookie s3 check inter 1000server          dynsrv4 192.168.1.4:80 minconn 50 maxconn 500 cookie s4 check inter 1000

<2>rhel-source.repo文件

[root@server1 file]# cat rhel-source.repo 
[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6.5
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release[salt-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.1.250/rhel6
enabled=1
gpgcheck=0

(8)编写全局推送文件，一键推送所有节点

[root@server1 ~]# cd /srv/salt/
[root@server1 salt]# vim top.sls 
base:'server2':- haproxy.service'server3':- apache.install'server4':- nginx.service[root@server1 salt]# salt '*' state.highstate   #高级推送

(9)测试

<1>server1访问server2(haproxy),实现httpd和nginx的轮询

[root@server1 ~]# curl 172.25.1.2
this is apache
[root@server1 ~]# curl 172.25.1.2
this is nginx!!!!
[root@server1 ~]# curl 172.25.1.2
this is apache
[root@server1 ~]# curl 172.25.1.2
this is nginx!!!!

<2>各个节点的服务已经自动开启

[root@server2 ~]# netstat  -nutlp |grep 80
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      7535/haproxy        

[root@server3 ~]# netstat  -nutlp |grep 80
tcp        0      0 :::80                       :::*                        LISTEN      2650/httpd  

[root@server4 mnt]# netstat  -nutlp |grep 80
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      10438/nginx    

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