一、目的
使用ansible自动化部署nginx+keepalived+mysql负载均衡集群。
二、拓扑规划
三、详细步骤
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1、环境的搭建
(1)安装ansible，同时配置私钥免密码进行通信
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[root<span>@localhost ~]# ssh-keygen -t rsa #-t表示使用的加密类型，其中rsa1表示version1版本，rsa、dsa、ecdsa的加密对于的是version2版本</span><br />Generating public/private rsa key pair.<br /><span>#这里询问你要把生成的密钥文件保存在哪里，默认是在家目录下的.ssh文件夹中，回车保存默认目录</span><br />Enter file in which to save the key (/root/.ssh/id_rsa): <br />Created directory '/root/.ssh'.<br /><span>#这里是对密钥文件加密，不输入则表示不加密</span><br />Enter passphrase (empty for no passphrase): <br />Your identification has been saved in /root/.ssh/id_rsa.<br />Your public key has been saved in /root/.ssh/id_rsa.pub.<br />The key fingerprint is:<br />04:9f:cb:9c:9d:1e:47:d7:e1:d4:c1:87:71:c3:a4:22 root<span>@localhost.localdomain</span><br />The key's randomart image is:<br />+--[ RSA 2048]----+<br />|<span> . =O+</span>|<br />|<span> o . ===</span>|<br />|<span> +E .....o</span>|<br />|<span> + +.o.. </span>|<br />|<span> S + . </span>|<br />|<span> . o </span>|<br />|<span> . </span>|<br />|<span> </span>|<br />|<span> </span>|<br />+-----------------+<br /> |
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(2)查看已经成功生成了一对密钥
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[root<span>@localhost</span> ~]# ls /root/.ssh<br />id_rsa id_rsa.pub#其中id_rsa为私钥，id_rsa.pub为公钥<br /> |
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(3)在生成完密钥对之后将公钥上传给服务器对应用户的家目录
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[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@<span>10.1</span><span>.252</span><span>.215</span><br />[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@<span>10.1</span><span>.252</span><span>.235</span><br />[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub <span>10.1</span><span>.253</span><span>.107</span><br />[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@<span>10.1</span><span>.249</span><span>.75</span><br />[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@<span>10.1</span><span>.249</span><span>.75</span><br /> |
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(4)编辑ansible的hosts文件，定义后所有的主机
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[<span>19</span>:<span>05</span> root@centos6.<span>8</span>/etc/ansible]<span># cat hosts </span><br /><span># This is the default ansible 'hosts' file.</span><br /><span>#</span><br /><span># It should live in /etc/ansible/hosts</span><br /><span>#</span><br /><span># - Comments begin with the '#' character</span><br /><span># - Blank lines are ignored</span><br /><span># - Groups of hosts are delimited by [header] elements</span><br /><span># - You can enter hostnames or ip addresses</span><br /><span># - A hostname/ip can be a member of multiple groups</span><br /><br /><span># Ex 1: Ungrouped hosts, specify before any group headers.</span><br />[web]<br /><span>10.1</span>.<span>252.215</span><br /><span>10.1</span>.<span>252.235</span><br />[nginx]<br /><span>10.1</span>.<span>253.107</span> <span>state</span>=MASTER priority=<span>100</span><br /><span>10.1</span>.<span>249.75</span> <span>state</span>=BACKUP priority=<span>90</span><br />[mysql]<br /><span>10.1</span>.<span>252.36</span><br /> |
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OK，环境已经搭配好，所有主机同步下时间：
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<span>[19:34 root@centos6.8/etc/ansible]</span># ansible all -a 'ntpdate <span>10.1.0.1</span>'<br /><span>10.1.252.215</span> | success | rc=<span>0</span> >><br /> <span>3</span> Nov <span>19</span>:<span>34</span>:<span>30</span> ntpdate<span>[38293]</span>: adjust time server <span>10.1.0.1</span> offset -<span>0</span>.<span>003936</span> sec<br /><br /><span>10.1.252.36</span> | success | rc=<span>0</span> >><br /> <span>3</span> Nov <span>19</span>:<span>34</span>:<span>30</span> ntpdate<span>[3291]</span>: adjust time server <span>10.1.0.1</span> offset <span>0</span>.<span>200434</span> sec<br /><br /><span>10.1.252.235</span> | success | rc=<span>0</span> >><br /> <span>3</span> Nov <span>19</span>:<span>34</span>:<span>36</span> ntpdate<span>[38723]</span>: adjust time server <span>10.1.0.1</span> offset -<span>0</span>.<span>001469</span> sec<br /><br /><span>10.1.253.107</span> | success | rc=<span>0</span> >><br /> <span>3</span> Nov <span>19</span>:<span>34</span>:<span>37</span> ntpdate<span>[7161]</span>: adjust time server <span>10.1.0.1</span> offset -<span>0</span>.<span>001905</span> sec<br /><br /><span>10.1.249.75</span> | success | rc=<span>0</span> >><br /> <span>3</span> Nov <span>19</span>:<span>34</span>:<span>37</span> ntpdate<span>[4951]</span>: adjust time server <span>10.1.0.1</span> offset <span>0</span>.<span>018952</span> sec<br /> |
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2、下面来进行ansible的roles和playbook的定义：
在/etc/ansible/roles目录下创建相关的角色目录：
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[<span>19</span>:<span>56</span> root@centos6<span>.8</span>/etc/ansible/roles]# mkdir -pv {mysql,web,nginx}/{files,tasks,templates,variables,handlers,meta,defult}<br />mkdir: created directory `mysql<span>'</span><br />mkdir: created directory `mysql/files<span>'</span><br />mkdir: created directory `mysql/tasks<span>'</span><br />mkdir: created directory `mysql/templates<span>'</span><br />mkdir: created directory `mysql/variables<span>'</span><br />mkdir: created directory `mysql/handlers<span>'</span><br />mkdir: created directory `mysql/meta<span>'</span><br />mkdir: created directory `mysql/<span>default</span><span>'</span><br />mkdir: created directory `web<span>'</span><br />mkdir: created directory `web/files<span>'</span><br />mkdir: created directory `web/tasks<span>'</span><br />mkdir: created directory `web/templates<span>'</span><br />mkdir: created directory `web/variables<span>'</span><br />mkdir: created directory `web/handlers<span>'</span><br />mkdir: created directory `web/meta<span>'</span><br />mkdir: created directory `web/<span>default</span><span>'</span><br />mkdir: created directory `nginx<span>'</span><br />mkdir: created directory `nginx/files<span>'</span><br />mkdir: created directory `nginx/tasks<span>'</span><br />mkdir: created directory `nginx/templates<span>'</span><br />mkdir: created directory `nginx/variables<span>'</span><br />mkdir: created directory `nginx/handlers<span>'</span><br />mkdir: created directory `nginx/meta<span>'</span><br />mkdir: created directory `nginx/<span>default</span><span>'</span><br />[<span>19</span>:<span>58</span> root@centos6<span>.8</span>/etc/ansible/roles]# tree<br />.<br />├── mysql<br />│ ├── <span>default</span><br />│ ├── files<br />│ ├── handlers<br />│ ├── meta<br />│ ├── tasks<br />│ ├── templates<br />│ └── variables<br />├── nginx<br />│ ├── <span>default</span><br />│ ├── files<br />│ ├── handlers<br />│ ├── meta<br />│ ├── tasks<br />│ ├── templates<br />│ └── variables<br />└── web<br /> ├── <span>default</span><br /> ├── files<br /> ├── handlers<br /> ├── meta<br /> ├── tasks<br /> ├── templates<br /> └── variables<br /><br /><span>24</span> directories, <span>0</span> files<br /> |
说明：
files/：存储由copy或script等模块调用的文件；
tasks/：此目录中至少应该有一个名为main.yml的文件，用于定义各task；其它的文件需要由main.yml进行“包含”调用；
handlers/：此目录中至少应该有一个名为main.yml的文件，用于定义各handler；其它的文件需要由main.yml进行“包含”调用；
vars/：此目录中至少应该有一个名为main.yml的文件，用于定义各variable；其它的文件需要由main.yml进行“包含”调用；
templates/：存储由template模块调用的模板文本；
meta/：此目录中至少应该有一个名为main.yml的文件，定义当前角色的特殊设定及其依赖关系；其它的文件需要由main.yml进行“包含”调用；
default/：此目录中至少应该有一个名为main.yml的文件，用于设定默认变量；
下面就是添加playbook了，首先设置web：
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3、设置web的playbook
(1)Tasks：任务
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[<span>17</span>:<span>27</span> root@centos6.<span>8</span>/etc/ansible]<span># cat roles/web/tasks/main.yml </span><br />- <span>name:</span> install web pakgs<br /> <span>yum:</span> name={{ item }}<br /> <span>with_items:</span><br /> - httpd<br /> - php<br /> - php-mysql<br />- <span>name:</span> config the web<br /> <span>copy:</span> src=httpd.conf dest=<span>/etc/httpd</span><span>/conf/httpd</span>.conf<br /> <span>notify:</span> reload the service<br />- <span>name:</span> install wordpress<br /> <span>copy:</span> src=wordpress dest=<span>/var/www</span><span>/html/wordpress</span><span>/<br />- name: restart the service<br /> service: name=httpd state=started</span><br /> |
(2)添加触发器:handlers
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[<span>20</span>:<span>26</span> root@centos6.<span>8</span>/etc/ansible]<span># cat roles/web/handlers/main.yml </span><br />- name: relaod the service<br /> service: name=httpd <span>state</span>=restarted<br /> |
(3)添加需要的file：
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[<span>18</span>:<span>45</span> root@centos6<span>.8</span>/etc/ansible]# ll roles/web/files/<br />total <span>40</span><br />-rw-r--r--. <span>1</span> root root <span>34419</span> Nov <span>2</span> <span>20</span>:<span>23</span> httpd.conf #主要是配置httpd的默认配置，要事先准备好<br />drwxr-xr-x. <span>5</span> nobody nfsnobody <span>4096</span> Nov <span>3</span> <span>14</span>:<span>00</span> wordpress #wordpres的安装程序，注意这里的配置文件已经更改了后面的连接数据库<br />[<span>18</span>:<span>58</span> root@centos6<span>.8</span>/etc/ansible]#vim roles/web/files/wordpress/wp-config.php #修改数据库信息，信息已经在后面的mysql剧本已经定义好了<br /><span>/** WordPress数据库的名称 */</span><br />define(<span>'DB_NAME'</span>, <span>'wp'</span>);<br /><br /><span>/** MySQL数据库用户名 */</span><br />define(<span>'DB_USER'</span>, <span>'wpuser'</span>); <br /><br /><span>/** MySQL数据库密码 */</span><br />define(<span>'DB_PASSWORD'</span>, <span>'wppass'</span>);<br /><br /><span>/** MySQL主机 */</span><br />define(<span>'DB_HOST'</span>, <span>'10.1.252.109'</span>);<br /><br /><span>/** 创建数据表时默认的文字编码 */</span><br />define(<span>'DB_CHARSET'</span>, <span>'utf8'</span>);<br /> |
(4)添加主剧本：
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[<span>20</span>:<span>28</span> root@centos6<span>.8</span>/etc/ansible]# ll web.yml <br />-rw-r--r--. <span>1</span> root root <span>51</span> Nov <span>2</span> <span>20</span>:<span>22</span> web.yml<br />[<span>20</span>:<span>28</span> root@centos6<span>.8</span>/etc/ansible]# pwd<br />/etc/ansible<br />[<span>20</span>:<span>28</span> root@centos6<span>.8</span>/etc/ansible]# cat web.yml <br />- hosts: web<br /> remote_user: root<br /> roles:<br /> - web <br /> |
检查语法没有问题：
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[<span>20</span>:<span>25</span> root@centos6<span>.8</span>/etc/ansible]# ansible-playbook --syntax-check web.yml <br /><br />playbook: web.yml<br /><br /> |
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4、下面来部署前端的nginx调度起和keepalived配置：
(1)添加task任务：
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[<span>19</span>:<span>34</span> root@centos6.<span>8</span>/etc/ansible]<span># cat roles/nginx/tasks/main.yml </span><br />- <span>name:</span> install keepalived<br /> <span>yum:</span> name=keepalived<br />- <span>name:</span> copy nginx<br /> <span>copy:</span> src=nginx-<span>1.10</span>.<span>0</span>-<span>1</span>.el7.ngx.x86_64.rpm dest=<span>/tmp/nginx</span>.rpm<br />- <span>name:</span> install nginx<br /> <span>yum:</span> name=<span>/tmp/nginx</span>.rpm<br />- <span>name:</span> delete the nginx pkg<br /> <span>shell:</span> <span>"rm -f /tmp/nginx.rpm"</span><br />- <span>name:</span> config nginx&keepalived<br /> <span>template:</span> src=keepalived.j2 dest=<span>/etc/keepalived</span><span>/keepalived.conf<br /> notify: reload the service<br />- name: config nginx&keepalived<br /> template: src=nginx.j2 dest=/etc</span><span>/nginx/nginx</span>.conf<br /> <span>notify:</span> reload the service<br />- <span>name:</span> start the service<br /> <span>service:</span> name={{ item }} state=started <br /> <span>with_items:</span><br /> - keepalived<br /> - nginx<br /> |
(2)添加handlers：
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[<span>21</span>:<span>28</span> root@centos6.<span>8</span>/etc/ansible]<span>#cat roles/nginx/handlers/mainx.yml </span><br />- <span>name:</span> reload the service<br /> <span>service:</span> name={{ item }} state=restarted<br /> <span>with_items:</span><br /> - nginx<br /> - keepalived<br /> |
(3)在hosts列表中复制变量：
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[<span>19</span>:<span>38</span> root@centos6.<span>8</span>/etc/ansible]<span># cat hosts </span><br /><span># This is the default ansible 'hosts' file.</span><br /><span>#</span><br /><span># It should live in /etc/ansible/hosts</span><br /><span>#</span><br /><span># - Comments begin with the '#' character</span><br /><span># - Blank lines are ignored</span><br /><span># - Groups of hosts are delimited by [header] elements</span><br /><span># - You can enter hostnames or ip addresses</span><br /><span># - A hostname/ip can be a member of multiple groups</span><br /><br /><span># Ex 1: Ungrouped hosts, specify before any group headers.</span><br /><br />[web]<br /><span>10.1</span>.<span>252.215</span><br /><span>10.1</span>.<span>252.235</span><br />[nginx]<br /><span>10.1</span>.<span>253.107</span> <span>state</span>=MASTER priority=<span>100</span><br /><span>10.1</span>.<span>249.75</span> <span>state</span>=BACKUP priority=<span>90</span><br />[mysql]<br /><span>10.1</span>.<span>252.36</span><br /> |
(4)提供files文件：nginx的安装程序
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[<span>19</span>:<span>39</span> root@centos6<span>.8</span>/etc/ansible]# ll roles/nginx/files/<br />total <span>644</span><br />-rw-r--r--. <span>1</span> root root <span>655648</span> Apr <span>29</span> <span>2016</span> nginx-<span>1.10</span><span>.0</span>-<span>1.</span>el7.ngx.x86_64.rpm<br /> |
(5)在template中使用了变量：nginx配置：
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[21:33 root@centos6.8/etc/ansible]# <span>cat</span> roles/nginx/templates/nginx.j2 <br /><br />user nginx;<br />worker_processes {{ ansible_processor_vcpus }}; #使用变量，进程数为cpu数量：<br /><br />error_log /<span>var</span>/<span>log</span>/nginx/<span>error</span>.<span>log</span> warn;<br />pid /<span>var</span>/<span>run</span>/nginx.pid;<br /><br /><br />events {<br /> worker_connections 1024;<br />}<br /><br /><br />http {<br /> <span>include</span> /etc/nginx/mime.types;<br /> default_type application/octet-stream;<br /><br /> log_format main '$remote_addr - $remote_user [$time_local] <span>"$request"</span> '<br /> '$status $body_bytes_sent <span>"$http_referer"</span> '<br /> '<span>"$http_user_agent"</span> <span>"$http_x_forwarded_for"</span>';<br /><br /> access_log /<span>var</span>/<span>log</span>/nginx/access.<span>log</span> main;<br /><br /> sendfile <span>on</span>;<br /> #tcp_nopush <span>on</span>;<br /><br /> keepalive_timeout 65;<br /><br /> #gzip <span>on</span>;<br /><br /> <span>include</span> /etc/nginx/<span>conf</span>.<span>d</span><span>/*.conf;<br /><br /> upstream web {<br /> server 10.1.24.113;<br /> server 10.1.24.114;<br /> }<br /> location / {<br /> proxy_pass http://web; <br />}<br /><br />}</span><br /> |
keepalived配置：
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[<span>21</span>:<span>33</span> root@centos6.<span>8</span>/etc/ansible]<span># cat roles/nginx/templates/keepalived.j2 </span><br />! <span>Configuration</span> <span>File</span> <span>for</span> keepalived<br /><br />global_defs {<br /> notification_email {<br /> sysadmin@firewall.loc<br /> }<br /> notification_email_from <span>Alexandre</span>.<span>Cassen</span>@firewall.loc<br /> smtp_server <span>127.0</span>.<span>0.1</span><br /> smtp_connect_timeout <span>30</span><br /> router_id <span>LVS_DEVEL</span><br />}<br /><br />vrrp_instance <span>VI_1</span> {<br /> state {{ state }} <span>#使用变量，变量在hosts中已经定义了</span><br /> interface eno16777746<br /> virtual_router_id <span>55</span><br /> priority {{ priority }} <span>#使用变量，变量在hosts中已经定义了</span><br /> advert_int <span>1</span><br /> authentication {<br /> auth_type <span>PASS</span><br /> auth_pass <span>232332</span><br /> }<br /> virtual_ipaddress {<br /> <span>10.1</span>.<span>24.222</span><br /> }<br />}<br /> |
(6)添加主剧本：
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[<span>21</span>:<span>30</span> root@centos6<span>.8</span>/etc/ansible]# cat nginx.yml <br />- hosts: nginx<br /> remote_user: root<br /> roles:<br /> - nginx<br /> |
(7)语法检测没有问题
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[<span>21</span>:<span>34</span> root@centos6<span>.8</span>/etc/ansible]#ansible-playbook --syntax-check nginxx.yml <br /><br />playbook: nginx.yml<br /> |
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5、设置mysql：
(1)设置mysql的task：
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[18:46 root@centos6.8/etc/ansible]# cat roles/mysql/tasks/main.yml <br />- name: <span>install</span> mysql<br /> yum: <span>name</span>=mysql-<span>server</span><br />- <span>name</span>: copy <span>sql</span> <span>file</span><br /> copy: src=mysql.<span>sql</span> dest=/tmp/mysql.<span>sql</span><br />- <span>name</span>: <span>start</span> mysql service<br /> service: <span>name</span>=mysqld state=started<br />- <span>name</span>: config mysql<br /> shell: <span>"mysql < /tmp/mysql.sql"</span><br /><br /> |
(2)设置files文件
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[18:47 root@centos6.8/etc/ansible]# ll roles/mysql/files/<br />total 4<br />-rw-r<span>--r--. 1 root root 78 Nov 3 15:41 mysql.sql</span><br />[19:39 root@centos6.8/etc/ansible]# cat roles/mysql/files/mysql.sql #提供数据库的sql脚本，创建wordpres的用户和数据库<br /><span>CREATE</span> <span>DATABASE</span> wp;<br /><span>GRANT</span> ALL <span>ON</span> wp.* <span>TO</span> <span>'wpuser'</span>@<span>'%'</span> <span>IDENTIFIED</span> <span>BY</span> <span>'wppass'</span>;<br /> |
(3)添加主剧本：
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[<span>18</span>:<span>48</span> root@centos6<span>.8</span>/etc/ansible]# cat mysql.yml <br />- hosts: mysql<br /> remote_user: root<br /> roles:<br /> - mysql<br /> |
(4)语法检查没有问题：
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[<span>18</span>:<span>49</span> root@centos6<span>.8</span>/etc/ansible]# ansible-playbook --syntax-check mysql.yml <br /><br />playbook: mysql.yml<br /> |
mysql的ansible配置已经完成
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6、至此，web、nginx+keepalived、mysql的配置都已经完成，下面来依次执行剧本
(1)来看下整个目录的结构：
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<span>[19:05 root@centos6.8/etc/ansible]</span># <span>tree</span> <span>-L</span> 4<br />.<br />├── <span>ansible</span><span>.cfg</span><br />├── <span>ansible</span><span>.cfg</span><span>.bak</span><br />├── <span>hosts</span><br />├── <span>mysql</span><span>.yml</span><br />├── <span>nginx</span><span>.yml</span><br />├── <span>roles</span><br />│ ├── <span>mysql</span><br />│ │ ├── <span>default</span><br />│ │ ├── <span>files</span><br />│ │ │ └── <span>mysql</span><span>.sql</span><br />│ │ ├── <span>handlers</span><br />│ │ ├── <span>meta</span><br />│ │ ├── <span>tasks</span><br />│ │ │ └── <span>main</span><span>.yml</span><br />│ │ ├── <span>templates</span><br />│ │ └── <span>variables</span><br />│ ├── <span>nginx</span><br />│ │ ├── <span>default</span><br />│ │ ├── <span>files</span><br />│ │ │ └── <span>nginx-1</span><span>.10</span><span>.0-1</span><span>.el7</span><span>.ngx</span><span>.x86_64</span><span>.rpm</span><br />│ │ ├── <span>handlers</span><br />│ │ │ └── <span>main</span><span>.yml</span><br />│ │ ├── <span>meta</span><br />│ │ ├── <span>tasks</span><br />│ │ │ └── <span>main</span><span>.yml</span><br />│ │ ├── <span>templates</span><br />│ │ │ ├── <span>keepalived</span><span>.j2</span><br />│ │ │ └── <span>nginx</span><span>.j2</span><br />│ │ └── <span>variables</span><br />│ └── <span>web</span><br />│ ├── <span>default</span><br />│ ├── <span>files</span><br />│ │ ├── <span>httpd</span><span>.conf</span><br />│ │ └── <span>wordpress</span><br />│ ├── <span>handlers</span><br />│ │ └── <span>main</span><span>.yml</span><br />│ ├── <span>meta</span><br />│ ├── <span>tasks</span><br />│ │ └── <span>main</span><span>.yml</span><br />│ ├── <span>templates</span><br />│ └── <span>variables</span><br />├── <span>test</span><span>.yaml</span><br />└── <span>web</span><span>.yml</span><br /><br />26 <span>directories</span>, 17 <span>files</span><br /> |
(2)执行web的playbook：
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[17:15 root<span>@centos6.8/etc/ansible]# ansible-playbook web.yml </span><br /><br />PLAY [web] <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br /><br />GATHERING FACTS <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br />ok: [10.1.252.235]<br />ok: [10.1.252.215]<br /><br />TASK: [web |<span> install web pakgs] *********************************************** <br />ok: [10.1.252.215] => (item=httpd,php,php-mysql)<br />ok: [10.1.252.235] => (item=httpd,php,php-mysql)<br /><br />TASK: [web </span>|<span> config the web] ************************************************** <br />ok: [10.1.252.215]<br />ok: [10.1.252.235]<br /><br />TASK: [web </span>|<span> install wordpress] *********************************************** <br />changed: [10.1.252.235]<br />changed: [10.1.252.215]<br /><br />TASK: [web </span>|<span> restart the service] ********************************************* <br />ok: [10.1.252.215]<br />ok: [10.1.252.235]<br /><br />PLAY RECAP ******************************************************************** <br />10.1.252.215 : ok=5 changed=1 unreachable=0 failed=0 <br />10.1.252.235 : ok=5 changed=1 unreachable=0 failed=0 </span><br /> |
(3)执行mysql的playbook：
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[18:52 root<span>@centos6.8/etc/ansible]# ansible-playbook mysql.yml </span><br /><br />PLAY [mysql] <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br /><br />GATHERING FACTS <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br />ok: [10.1.252.36]<br /><br />TASK: [mysql |<span> install mysql] ************************************************* <br />ok: [10.1.252.36]<br /><br />TASK: [mysql </span>|<span> copy sql file] ************************************************* <br />ok: [10.1.252.36]<br /><br />TASK: [mysql </span>|<span> start mysql service] ******************************************* <br />ok: [10.1.252.36]<br /><br />TASK: [mysql </span>|<span> config mysql] ************************************************** <br />skipping: [10.1.252.36]<br />ok: [10.1.252.36]<br /><br />PLAY RECAP ******************************************************************** <br />10.1.252.36 : ok=4 changed=0 unreachable=0 failed=0 </span><br /> |
(4)执行nginx的playbook：
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[18:53 root<span>@centos6.8/etc/ansible]# ansible-playbook nginx.yml </span><br /><br />PLAY [nginx] <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br /><br />GATHERING FACTS <span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span><span>*</span> <br />ok: [10.1.249.75]<br />ok: [10.1.253.107]<br /><br />TASK: [nginx |<span> install keepalived] ******************************************** <br />ok: [10.1.253.107]<br />ok: [10.1.249.75]<br /><br />TASK: [nginx </span>|<span> copy nginx] **************************************************** <br />changed: [10.1.249.75]<br />changed: [10.1.253.107]<br /><br />TASK: [nginx </span>|<span> install nginx] ************************************************* <br />ok: [10.1.249.75]<br />ok: [10.1.253.107]<br /><br />TASK: [nginx </span>|<span> delete the nginx pkg] ****************************************** <br />changed: [10.1.249.75]<br />changed: [10.1.253.107]<br /><br />TASK: [nginx </span>|<span> config nginx&keepalived] *************************************** <br />ok: [10.1.249.75]<br />ok: [10.1.253.107]<br /><br />TASK: [nginx </span>|<span> config nginx&keepalived] *************************************** <br />ok: [10.1.249.75]<br />ok: [10.1.253.107]<br /><br />TASK: [nginx </span>|<span> start the service] ********************************************* <br />ok: [10.1.253.107] => (item=keepalived)<br />ok: [10.1.249.75] => (item=keepalived)<br />ok: [10.1.253.107] => (item=nginx)<br />ok: [10.1.249.75] => (item=nginx)<br /><br />PLAY RECAP ******************************************************************** <br />10.1.249.75 : ok=8 changed=2 unreachable=0 failed=0 <br />10.1.253.107 : ok=8 changed=2 unreachable=0 failed=0 </span><br /> |
执行完成后，下面就是验证效果的时候：
激动的时刻，成功了！
中间本人遇到的问题：在每个task中的name任务中不能有过多的任务，必须要分为多个步骤进行，如此例中的copy nginx然后再yum nginx，不能写在同一个name中，否则会报错！此外，copy的模块拷贝目录时注意最后的“/” 问题。
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原创文章，作者：麦德良，如若转载，请注明出处：http://www.178linux.com/57379
麦德良 
