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Ansible分离部署LAMP(playbook)

2021/7/20 17:55:05 浏览:

Ansible分离部署LAMP(playbook)

文章目录

  • Ansible分离部署LAMP(playbook)
    • 环境说明
    • 准备工作
    • 1. 安装httpd
      • 1.1 编写playbook
        • 1.1.1 进入lamp/httpd目录创建一个名为httpd_install的yaml文件
        • 1.1.2 执行这个playbook
      • 1.2 关闭防火墙和selinux
        • 1.2.1 编写playbook来配置防火墙和selinux
        • 1.2.2 执行这个playbook
        • 1.2.3 完成后访问node2的IP进行测试
    • 2. 安装mysql
      • 2.1 编写playbook
      • 2.2 执行这个playbook
    • 3. 安装php及常见组件
      • 3.1 编写playbook
      • 3.2 执行这个playbook
    • 4. 配置httpd和php
      • 4.1 配置httpd
        • 4.1.1 编写httpd配置文件
        • 4.1.2 编写修改httpd配置文件的playbook
        • 4.1.3 执行修改httpd配置的playbook
      • 4.2 配置php
        • 4.2.1 编写php测试页
        • 4.2.2 编写修改php配置的playbook
        • 4.2.3 执行修改php配置的playbook
        • 4.2.4 关闭防火墙和selinux
      • 4.3 重启服务
        • 4.3.1 编写重启httpd和php服务的playbook
        • 4.3.2 执行playbook
    • 5. 访问IP进行测试

环境说明

主机名IP备注
node1192.168.100.100ansible主机
node2192.168.100.110部署httpd服务
node3192.168.100.120部署MySQL数据库
node4192.168.100.130部署php

准备工作

  1. 在ansible主机上安装ansible
//安装epel扩展源
[root@node1]# yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
......略
Installed:
  epel-next-release-8-11.el8.noarch                         
  epel-release-8-11.el8.noarch                              

Complete!

//安装ansible
[root@node1 ~]# yum -y install ansible
......略
Installed:
  ansible-2.9.23-1.el8.noarch                               
  libsodium-1.0.18-2.el8.x86_64                             
  python3-babel-2.5.1-6.el8.noarch                          
  python3-bcrypt-3.1.6-2.el8.1.x86_64                       
  python3-cffi-1.11.5-5.el8.x86_64                          
  python3-cryptography-3.2.1-5.el8.x86_64                   
  python3-jinja2-2.10.1-3.el8.noarch                        
  python3-jmespath-0.9.0-11.el8.noarch                      
  python3-markupsafe-0.23-19.el8.x86_64                     
  python3-paramiko-2.4.3-1.el8.noarch                       
  python3-pip-9.0.3-20.el8.noarch                           
  python3-ply-3.9-9.el8.noarch                              
  python3-pyasn1-0.3.7-6.el8.noarch                         
  python3-pycparser-2.14-14.el8.noarch                      
  python3-pynacl-1.3.0-5.el8.x86_64                         
  python3-pytz-2017.2-9.el8.noarch                          
  python3-pyyaml-3.12-12.el8.x86_64                         
  python3-setuptools-39.2.0-6.el8.noarch                    
  python36-3.6.8-37.module_el8.5.0+771+e5d9a225.x86_64      
  sshpass-1.06-9.el8.x86_64                                 

Complete!
  1. 在ansible主机的家目录下创建一个名为lamp的目录
[root@node1 ~]# mkdir lamp
[root@node1 ~]# ls
anaconda-ks.cfg  lamp
  1. 进入lamp目录,分别创建名为httpd、mysql、php的目录
[root@node1 ~]# cd lamp/
[root@node1 lamp]# mkdir httpd
[root@node1 lamp]# mkdir mysql
[root@node1 lamp]# mkdir php
[root@node1 lamp]# ls
httpd  mysql  php
  1. 在lamp目录下构建主机清单
[root@node1 lamp]# vim inventory 
[root@node1 lamp]# cat inventory 
[httpd]
node2

[mysql]
node3

[php]
node4
  1. 添加hosts文件
//四台主机都做相同操作,这里只展示一台
[root@node1 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.100.100 node1
192.168.100.110 node2
192.168.100.120 node3
192.168.100.130 node4
  1. 配置免密登录
[root@node1 ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:rHdqJ6l+fGYrsriaXQSnOTfzN1CgpaV/p8EOd0RBWQY root@node1
The key's randomart image is:
+---[RSA 3072]----+
|        +  .E=o  |
|       * . ...   |
|    . =   . .    |
|     = o o .     |
|    + = S = o    |
|     + = * =     |
|      o.o.*      |
|   o o..B+=.     |
|  o.+o+*.B..     |
+----[SHA256]-----+
[root@node1 ~]# ssh-copy-id root@192.168.100.110
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.100.110 (192.168.100.110)' can't be established.
ECDSA key fingerprint is SHA256:5ei7iLFV+3zEXwYhwEcHaL/2Gq6vSJC9FFUWlviGsng.
Are you sure you want to continue connecting (yes/no/[fingerprint])? y
Please type 'yes', 'no' or the fingerprint: yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.100.110's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.100.110'"
and check to make sure that only the key(s) you wanted were added.

[root@node1 ~]# ssh-copy-id root@192.168.100.120
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.100.120 (192.168.100.120)' can't be established.
ECDSA key fingerprint is SHA256:C+o4hw/oLQP/j3txuE/+BwatKh/6UqJE9F2VBmyvfno.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.100.120's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.100.120'"
and check to make sure that only the key(s) you wanted were added.

[root@node1 ~]# ssh-copy-id root@192.168.100.130
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.100.130 (192.168.100.130)' can't be established.
ECDSA key fingerprint is SHA256:CHY8Sm54r0drHxbeRBFi4I9LGZWG7ccrLS0QeSW/ckk.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.100.130's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.100.130'"
and check to make sure that only the key(s) you wanted were added.
  1. 修改ansible主机默认清单的位置
[root@node1 lamp]# cat /etc/ansible/ansible.cfg |grep inventory
#inventory      = /etc/ansible/hosts
inventory      = ~/lamp/inventory
  1. 测试ansible主机和受管主机之间是否互通
[root@node1 lamp]# ansible all -m ping     
node3 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/libexec/platform-python"
    },
    "changed": false,
    "ping": "pong"
}
node4 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/libexec/platform-python"
    },
    "changed": false,
    "ping": "pong"
}
node2 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/libexec/platform-python"
    },
    "changed": false,
    "ping": "pong"
}

本次架构树状图如下

[root@node1 lamp]# tree
.
├── httpd
│   ├── hello.conf
│   ├── httpd_config.yml
│   ├── httpd_firewall.yml
│   └── httpd_install.yml
├── mysql
│   └── mysql_install.yml
├── php
│   ├── index.php
│   ├── php_config.yml
│   ├── php_firewall.yml
│   └── php_install.yml
└── restart.yml

至此,准备工作已经完成,下面来编写playbook

1. 安装httpd

1.1 编写playbook

1.1.1 进入lamp/httpd目录创建一个名为httpd_install的yaml文件

[root@node1 lamp]# cd httpd/
[root@node1 httpd]# vim httpd_install.yml
---
- name: install httpd
  hosts: node2
  gather_facts: no
  tasks:
    - name: install httpd using yum
      yum:
        name: httpd
        state: present

    - name: service is enabled
      service:
        name: httpd
        state: started
        enabled: yes

1.1.2 执行这个playbook

[root@node1 httpd]# ansible-playbook httpd_install.yml 

PLAY [install httpd] *******************************************************************************************************

TASK [Gathering Facts] *****************************************************************************************************
ok: [node2]

TASK [install httpd using yum] *********************************************************************************************
^Lchanged: [node2]

TASK [service is enabled] **************************************************************************************************
changed: [node2]

PLAY RECAP *****************************************************************************************************************
node2                      : ok=3    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

1.2 关闭防火墙和selinux

1.2.1 编写playbook来配置防火墙和selinux

[root@node1 httpd]# vim httpd_firewall.yml
---
- name: firewalld stop
  hosts: node2
  gather_facts: no
  tasks:
    - name: firewall stop use service
      service:
        name: firewalld
        state: stopped
        enabled: no

    - name: selinux disabled
      lineinfile:
        path: /etc/selinux/config
        regexp: '^SELINUX='
        line: SELINUX=disabled

1.2.2 执行这个playbook

[root@node1 httpd]# ansible-playbook httpd_firewall.yml 
[root@node1 httpd]# ansible-playbook httpd_firewall.yml 

PLAY [firewalld stop] *************************************************************************************************************************

TASK [firewall stop use service] **************************************************************************************************************
changed: [node2]

TASK [selinux disabled] ***********************************************************************************************************************
changed: [node2]

PLAY RECAP ************************************************************************************************************************************
node2                      : ok=2    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0 

1.2.3 完成后访问node2的IP进行测试

2. 安装mysql

2.1 编写playbook

//进入~/lamp/mysql目录
[root@node1 ~]# cd ~/lamp/mysql/
[root@node1 mysql]#

//编写playbook安装mysql
[root@node1 mysql]# vim mysql_install.yml
---
- name: install mysql
  hosts: node3                  
  gather_facts: no
  tasks:
    - name: install mariadb            
      yum:
        name: mariadb
        state: present          #使用yum模块安装mariadb

    - name: install mariadb-server    
      yum:
        name: mariadb-server
        state: present       #使用yum模块安装mariadb-server
        

        
- name: mariadb started
  hosts: node3
  tasks:
    - name: start mariadb use service
      service:
        name: mariadb        
        state: started      #开启mariadb服务
        enabled: yes         #将mariadb设置为开机自启

2.2 执行这个playbook

[root@node1 mysql]# ansible-playbook mysql_install.yml 

PLAY [install mysql] **************************************************************************************************************************

TASK [install mariadb] ************************************************************************************************************************
changed: [node3]

TASK [install mariadb-server] *****************************************************************************************************************
changed: [node3]

PLAY [mariadb started] ************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************
ok: [node3]

TASK [start mariadb use service] **************************************************************************************************************
changed: [node3]

PLAY RECAP ************************************************************************************************************************************
node3                      : ok=4    changed=3    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0 

3. 安装php及常见组件

3.1 编写playbook

//进入php目录下
[root@node1 ~]# cd ~/lamp/php
[root@node1 php]#

//创建php_install.yml文件
[root@node1 php]# vim php_install.yml
---
- name: php install
  hosts: node4
  gather_facts: no
  tasks:
    - name: php_install
      yum:
        name: php
        state: present     #安装php
        
    - name: php-*_install
      yum:
        name: php-*
        state: present     #安装php相关组件
        
    - name: curl_install
      yum:
        name: curl
        state: present
        
    - name: curl-devel_install
      yum:
        name: curl
        state: present     #安装curl
        
    - name: curl-devel
      yum:
        name: curl-devel
        state: present     #安装curl-devel

3.2 执行这个playbook

[root@node1 php]# ansible-playbook php_install.yml 

PLAY [php install] ****************************************************************************************************************************

TASK [php_install] ****************************************************************************************************************************
changed: [node4]

TASK [php-*_install] **************************************************************************************************************************
changed: [node4]

TASK [curl_install] ***************************************************************************************************************************
ok: [node4]

TASK [curl-devel_install] *********************************************************************************************************************
ok: [node4]

TASK [curl-devel] *****************************************************************************************************************************
changed: [node4]

PLAY RECAP ************************************************************************************************************************************
node4                      : ok=5    changed=3    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0  

4. 配置httpd和php

4.1 配置httpd

4.1.1 编写httpd配置文件

我们可以先在ansible主机上将配置文件写好,再通过copy模块将配置文件传输到node2上

//在ansible主机的httpd目录下创建一个hello.conf文件
[root@node1 httpd]# vim hello.conf
<VirtualHost 192.168.100.110:80>
    DocumentRoot "/etc/httpd/conf.d/"
    ServerName www.helloworld.com
    ProxyRequests off
    ProxyPassMatch ^/(.*\.php)$ fcgi://192.168.100.130:9000/var/www/html/$1
    <Directory "/var/www/html/">
        Options none
        AllowOverride none
        Require all granted
    </Directory>
</VirtualHost>

4.1.2 编写修改httpd配置文件的playbook

[root@node1 httpd]# vim httpd_config.yml 
---
- name: httpd config
  hosts: node2
  gather_facts: no
  tasks:
    - name: copy file
      copy:
        src: ~/lamp/httpd/hello.conf
        dest: /etc/httpd/conf.d/
        mode: 0755

    - name: Modify configuration 1
      lineinfile:
        path: /etc/httpd/conf/httpd.conf
        insertafter: "^    AddType application/x-"
        line: "    AddType application/x-httpd-php .php"

    - name: Modify configuation 2
      lineinfile:
        path: /etc/httpd/conf/httpd.conf
        insertafter: "^    AddType application/x-"
        line: "    AddType application/x-httpd-php-source .phps"


    - name: Modify configuation 3
      lineinfile:
        path: /etc/httpd/conf/httpd.conf
        regexp: "^    DirectoryIndex"
        line: "    DirectoryIndex index.html index.php"

4.1.3 执行修改httpd配置的playbook

[root@node1 httpd]# ansible-playbook httpd_config.yml 

PLAY [httpd config] ***************************************************************************************************************************

TASK [copy file] ******************************************************************************************************************************
changed: [node2]

TASK [Modify configuration 1] *****************************************************************************************************************
changed: [node2]

TASK [Modify configuation 2] ******************************************************************************************************************
changed: [node2]

TASK [Modify configuation 2] ******************************************************************************************************************
changed: [node2]

PLAY RECAP ************************************************************************************************************************************
node2                      : ok=4    changed=4    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

4.2 配置php

4.2.1 编写php测试页

[root@node1 php]# vim index.php
<?php
  phpinfo();
?>

4.2.2 编写修改php配置的playbook

[root@node1 php]# vim php_config.yml 
---
- name: php config
  hosts: node4
  gather_facts: no
  tasks:
    - name: mkdir dir
      file:
        path: /var/www/html
        mode: 0777

    - name: copy file
      copy:
        src: ~/lamp/php/index.php
        dest: /var/www/html
        mode: 0777

    - name: Modify configuration 1
      lineinfile:
        path: /etc/php-fpm.d/www.conf
        regexp: "^listen ="
        line: listen = 192.168.100.130:9000

    - name: Modify configuration 2
      lineinfile:
        path: /etc/php-fpm.d/www.conf
        regexp: "^listen.allowed_clients ="
        line: listen.allowed_clients = 192.168.100.110

4.2.3 执行修改php配置的playbook

[root@node1 php]# ansible-playbook php_config.yml 

PLAY [php config] *****************************************************************************************************************************

TASK [mkdir dir] ******************************************************************************************************************************
ok: [node4]

TASK [copy file] ******************************************************************************************************************************
ok: [node4]

TASK [Modify configuration 1] *****************************************************************************************************************
ok: [node4]

TASK [Modify configuration 2] *****************************************************************************************************************
ok: [node4]

PLAY RECAP ************************************************************************************************************************************
node4                      : ok=4    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

4.2.4 关闭防火墙和selinux

[root@node1 php]# vim php_firewall.yml
---
- name: stop firewall
  hosts: node4
  gather_facts: no
  tasks:
    - name: modify firewall
      service:
        name: firewalld
        state: stopped
        enabled: no

    - name: modify selinux
      lineinfile:
        path: /etc/selinux/config
        regexp: "^SELINUX="
        line: SELINUX=disabled
 
//执行这个playbook
[root@node1 php]# ansible-playbook php_firewall.yml 

PLAY [stop firewall] **************************************************************************************************************************

TASK [modify firewall] ************************************************************************************************************************
ok: [node4]

TASK [modify selinux] *************************************************************************************************************************
ok: [node4]

PLAY RECAP ************************************************************************************************************************************
node4                      : ok=2    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

4.3 重启服务

4.3.1 编写重启httpd和php服务的playbook

[root@node1 lamp]# vim restart.yml
---
- name: restart httpd
  hosts: node2
  gather_facts: no
  tasks:
    - name: restart httpd
      service:
        name: httpd
        state: restarted

- name: restart php
  hosts: node4
  gather_facts: no
  tasks:
    - name: restart php
      service:
        name: php-fpm
        state: restarted

4.3.2 执行playbook

[root@node1 lamp]# ansible-playbook restart.yml 

PLAY [restart httpd] **************************************************************************************************************************

TASK [restart httpd] **************************************************************************************************************************
changed: [node2]

PLAY [restart php] ****************************************************************************************************************************

TASK [restart php] ****************************************************************************************************************************
changed: [node4]

PLAY RECAP ************************************************************************************************************************************
node2                      : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   
node4                      : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0 

5. 访问IP进行测试


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