本文主要是介绍salt实现haproxy的负载均衡部署，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
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 |
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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