备份文档——利用ansible剧本功能批量安装软件

0..主机清单
    [web]
    172.16.1.[7:9]

    [lb]
    172.16.1.[5:6]

    [backup]
    172.16.1.41

    [nfs_server]
    172.16.1.31
    
    [nfs_client:children]
    web
    backup
    [zabbix]
    172.16.1.72

    [db]
    172.16.1.51

    172.16.1.101

1..剧本安装nfs服务
- hosts: nfs
  vars:
    IP: 172.16.1.31
    Web_dir: web
    Web_owner: www
  tasks:
    - name: 01_install_nfs_server_and_rpcbind
      yum:
        name: ['nfs-utils', 'rpcbind']
        state: installed
    - name: 02_create_backup_dir
      file: dest=/data/{{ item.dir }} state=directory owner={{ item.owner }}
      with_items:
        - { dir: '{{ Web_dir }}',owner: '{{ Web_owner }}' }
    - name: 03_edit_exprot
      copy: content="/data/web 172.16.1.0/24(rw,sync,no_all_squash,root_squash,anonuid=1200,anongid=1200)" dest=/etc/exports
    - name: 04_start_rpcbind_and_nfs
      service: name={{ item }} state=started enabled=yes
      with_items:
        - rpcbind
        - nfs

- hosts: web
  tasks:
    - name: 01_install_nfs-utils
      yum: name=nfs-utils state=installed
    - name: 02_create_backup_dir
      file: name=/data/web state=directory
    - name: 03_mount_nfs_dir
      mount: src=172.16.1.31:/data/web path=/data/web fstype=nfs state=mounted
      
2..剧本安装rsync服务
rsync_server: 
[root@m01 ansible_playbook]# vim rsync_server_install.yaml 
- hosts: 172.16.1.41
  tasks:
    - name: 01_install_rsync_server
      yum: name=rsync state=installed
    - name: 02_send_rsyncd.conf
      copy: src=/tmp/rsyncd.conf dest=/etc/
    - name: 03_create_rsync_user
      user: name=rsync create_home=no shell=/sbin/nologin
    - name: 04_create_passwd-file
      copy: content='rsync_backup:123456' dest=/etc/rsync.password mode=600 owner=root
    - name: 05_create_backup_dir
      file: dest=/backup/{{ item }} state=directory owner=rsync group=rsync
      with_items:
        - web
        - nfs
        - lb
        - zabbix
        - manager
    - name: 06_start_rsync_server
      service: name=rsyncd state=started enabled=yes
==================================================================================================
rsync_client:
[root@m01 ansible_playbook]# vim rsync_client_install.yaml 
- hosts: 172.16.1.7
  tasks:
    - name: 01_send_rsync_passwd_file
      copy: content='123456' dest=/etc/rsync.password mode=600
    - name: 02_create_backup_dir
      file: dest=/data/web state=directory
~                                             
自动同步配置要点:
inotify-tools
和sersync软件安装在客户端(web服务器上,不需要启动服务) 
只需配置好后,运行
/usr/local/sersync/sersync2 -dro /usr/local/sersync/confxml.xml
命令即可

[root@web01 ~]# chmod +x /etc/rc.d/rc.local

PS: 将sersync2添加到$PATH中:
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/sersync/"
将上条命令添加到/etc/profile文件中
echo 'export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/sersync/"' >> /etc/profile

最好使用绝对路径:
将sersync2 -dro /usr/local/sersync/confxml.xml
添加开机自启:
echo "/usr/local/sersync/sersync2 -dro /usr/local/sersync/confxml.xml" >> /etc/rc.local

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# ll /etc/rc.local    
    lrwxrwxrwx. 1 root root 13 Oct 28 20:51 /etc/rc.local -> rc.d/rc.local  
1）作用是，里面写的内容将作为开机启动时自动执行的命令(需要给rc.d/rc.local加上执行权限)
2）文件中的内容一定是命令信息
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