Ansible——playbook（web-nfs-rsync）

ansible playbook：剧本
由一个或多个模块组成，完成统一的目的，实现自动化操作

剧本编写遵循yaml语法

yaml的三要素：
缩进：两个字符，默认的tab键是四个字符，所以要使用tab键，需要修改.vimrc
vim /root/.vimrc
set tabstop=2
冒号：冒号后面需要空格，除非以冒号结尾
短横杠：列表项，后面跟空格

playbook语法结构：ansible-playbook 选项 文件路径
选项：

-C	模拟预运行
–list-hosts	列出清单
–list-tasks	列出任务
–list-tags	列出标签
–syntax-check	语法检查

-C  模拟预运行
--list-hosts：列出清单
--list-tasks：列出任务
--list-tags：列出标签
--syntax-check：语法检查

———————————华丽分隔线————————————

实验所需环境：

ansible	192.168.1.128
web	192.168.1.129
nfs	192.168.1.134
rsync	192.168.1.135

修改主机名：

hostnamectl set-hostname ansible
bash
hostnamectl set-hostname web
bash
hostnamectl set-hostname nfs
bash
hostnamectl set-hostname rsync
bash

修改hosts文件

[root@ansible ~]# vim /etc/hosts
192.168.1.128	ansible
192.168.1.129	web1
192.168.1.134	nfs1
192.168.1.135	rsync1

安装ansible

[root@ansible ~]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo	#epel源（扩展包）
[root@ansible ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo	#linux镜像源（组包）
[root@ansible ~]# yum -y install ansible		#安装ansible
[root@ansible ~]# ansible --version		#查看版本

二选其一即可↑↓

[root@ansible ~]# yum -y install epel-release		#安装epel扩展源
[root@ansible ~]# yum -y install ansible		#安装ansible

Ansible的基础配置：

1）配置清单

[root@ansible ~]# vim /etc/ansible/hosts
[web]
web1
[nfs]
nfs1
[rsync]
rsync1

[hao:children]
web
nfs
rsync

2）在ansible上配置ssh秘钥对访问

[root@ansible ~]# ssh-keygen -t rsa			#全部回车
[root@ansible ~]# ssh-copy-id root@web1		#web服务器
[root@ansible ~]# ssh-copy-id root@nfs1		#nfs服务器
[root@ansible ~]# ssh-copy-id root@rsync1		#rsync服务器

3）复制/etc/hosts到被管理端

[root@ansible ~]# scp /etc/hosts root@web1:/etc/
[root@ansible ~]# scp /etc/hosts root@nfs1:/etc/
[root@ansible ~]# scp /etc/hosts root@rsync1:/etc/

或者直接使用ansible-copy模块
[root@ansible ~]# ansible all -m copy -a "src=/etc/hosts dest=/etc/ backup=yes"

4）创建ansible目录

[root@ansible ~]# mkdir -p /etc/ansible/ansible_playbook/{conf,file,scripts,tools}

测试案例：通过playbook安装httpd,并修改端口号为8080

1）本地安装httpd，修改端口为8080

[root@ansible ~]# yum -y install httpd
[root@ansible ~]# cp /etc/httpd/conf/httpd.conf /etc/ansible/ansible_playbook/
[root@ansible ~]# cd /etc/ansible/ansible_playbook/
[root@ansible ansible_playbook]# vim httpd.conf
Listen 8080				#修改端口号
ServerName www.example.com:80			#去注释

2）修改tab键缩进为两个字符，修改.vimrc

[root@ansible ansible_playbook]# vim /root/.vimrc
[root@ansible ansible_playbook]# set tabstop=2

3）编写httpd.yaml

[root@ansible ansible_playbook]# vim httpd.yaml
- hosts: web

  tasks:
    - name: install httpd
      yum: name=httpd state=latest

    - name: httpd config
      copy: src=httpd.conf dest=/etc/httpd/conf/httpd.conf
      notify: restart httpd

    - name: start httpd
      shell: systemctl start httpd

  handlers:
    - name: restart httpd
      shell: systemctl restart httpd

[root@ansible ansible_playbook]# ansible-playbook -C httpd.yaml			#测试yaml
[root@ansible ansible_playbook]# ansible-playbook httpd.yaml			#执行yaml

4）还原初始环境（为后续实验）

[root@ansible ~]# yum -y remove httpd		#卸载本地httpd
[root@ansible ~]# ansible web -m shell -a "yum -y remove httpd"		#卸载web服务器httpd
[root@ansible ~]# rm -rf httpd.*

playbook配置web-nfs-rsync架构环境

1、基础环境部署

1）网络环境（关闭firewall selinux）
2）epel仓库
3）安装rsync，nfs-utils
4）创建组
5）创建用户
6）创建目录，并修改权限
7）推送脚本
8）推送rsync客户端密码文件，修改权限
9）计划任务

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/base.yaml
- hosts: all
  tasks:
    - name: clear repos.d
      file: path=/etc/yum.repos.d/ state=absent

    - name: create repos.d
      file: path=/etc/yum.repos.d/ state=directory

    - name: install base repo
      get_url: url=http://mirrors.aliyun.com/repo/Centos-7.repo dest=/etc/yum.repos.d/CentOS-Base.repo

    - name: install epel repo
      get_url: url=http://mirrors.aliyun.com/repo/epel-7.repo dest=/etc/yum.repos.d/epel.repo

    - name: install rsync nfs-utils
      yum: name=rsync,nfs-utils state=installed

    - name: create group www
      group: name=www gid=666

    - name: create user www
      user: name=www uid=666 create_home=no shell=/sbin/nologin

    - name: create rsync client password
      copy: content='1' dest=/etc/rsync.pass mode=600

    - name: create scripts directory
      file: path=/server/scripts/ recurse=yes state=directory

    - name: push scripts
      copy: src=./scripts/rsync_backup.sh dest=/server/scripts

    - name: crontab
      cron: name="backup scripts" hour=01 minute=00 job="/usr/bin/bash /server/scripts/rsync_backup.sh &> /dev/null"


[root@ansible ansible_playbook]# cd scripts/
[root@ansible ansible_playbook]# vim rsync_backup.sh
#!/usr/bin/bash
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

#1.定义变量
Host=$(hostname)
Addr=$(ifconfig ens33|awk 'NR==2{print $2}')
Date=$(date +%F)
Dest=${Host}_${Addr}_${Date}
Path=/backup

#2.创建备份目录
[ -d $Path/$Dest ] || mkdir -p $Path/$Dest

#3.备份对应的文件
cd / && \
[ -f $Path/$Dest/system.tar.gz ] || tar czf $Path/$Dest/system.tar.gz etc/fstab etc/rsyncd.conf && \
[ -f $Path/$Dest/log.tar.gz ] || tar czf $Path/$Dest/log.tar.gz  var/log/messages var/log/secure && \

#4.携带md5验证信息
[ -f $Path/$Dest/flag ] || md5sum $Path/$Dest/*.tar.gz >$Path/$Dest/flag_${Date}

#4.推送本地数据至备份服务器
export RSYNC_PASSWORD=1
rsync -avz $Path/ rsync_backup@rsync1::backup

#5.本地保留最近7天的数据
find $Path/ -type d -mtime +7|xargs rm -rf


[root@ansible scripts]# cd ..
[root@ansible ansible_playbook]# ansible-playbook -C base.yaml

2、rsync配置

1）安装rsync
2）配置
3）启动
4）脚本
5）计划任务

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/rsync.yaml
- hosts: rsync
  tasks:

    - name: install rsync
      yum: name=rsync,mailx state=installed

    - name: config rsync
      copy: src=/etc/ansible/ansible_playbook/conf/rsyncd.conf dest=/etc/rsyncd.conf
      notify: restart rsync

    - name: create rsync local user
      copy: content='rsync_backup:1' dest=/etc/rsync.password mode=600

    - name: create data
      file: path=/data state=directory recurse=yes owner=www group=www mode=755

    - name: create backup
      file: path=/backup state=directory recurse=yes owner=www group=www mode=755

    - name: start rsync
      service: name=rsyncd state=started enabled=yes

    - name: push check scripts
      copy: src=./scripts/rsync_check.sh dest=/server/scripts/

    - name: crond check scripts
      cron: name="check scripts" hour=05 minute=00 job="/usr/bin/bash /server/scripts/rsync_check.sh &> /dev/null"

  handlers:
    - name: restart rsync
      service: name=rsyncd state=restarted


[root@ansible ansible_playbook]# cd conf/
[root@ansible conf]# vim rsyncd.conf 
uid = nobody
gid = nobody
port 873
address = 192.168.1.135
hosts allow = 192.168.1.0/24
max connections = 4
pid file = /var/run/rsyncd.pid
timeout = 900
dont compress   = *.gz *.tgz *.zip *.z *.Z *.rpm *.deb *.bz2
[backup]
    path = /backup
    read only = no
    auth users = rsync_backup
    secrets file = /etc/rsync.password


[root@ansible ansible_playbook]# cd ../scripts/
[root@ansible scripts]# vim rsync_check.sh 
#!/usr/bin/bash

#1.定义全局的变量
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

#2.定义局部变量
Path=/backup
Date=$(date +%F)

#3.查看flag文件,将校验的结果保存至result_时间
find $Path/*_${Date} -type f -name "flag$Date"  >$Path/result_${Date}

#4.将校验的结果发送邮件给管理员
mail -s "Rsync Backup $Date" [email protected] <$Path/result_${Date}

#5.删除超过7天的校验结果文件, 删除超过180天的备份数据文件
find $Path/ -type f -name "result*" -mtime +7|xargs rm -f
find $Path/ -type d -mtime +180|xargs rm -rf


[root@ansible scripts]# cd ..
[root@ansible ansible_playbook]# ansible-playbook -C rsync.yaml

3、nfs部署

1）安装nfs-utils
2）配置
3）启动

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/nfs.yaml
- hosts: nfs

  tasks:
    - name: install nfs
      yum: name=nfs-utils state=installed

    - name: config nfs
      copy: src=./conf/exports dest=/etc/exports

    - name: create data
      file: path=/data state=directory recurse=yes owner=www group=www mode=755

    - name: start nfs
      service: name=nfs-server state=started enabled=yes

  handlers:
    - name: restart nfs
      service: name=nfs-server state=restarted


[root@ansible ansible_playbook]# cd conf/
[root@ansible conf]# vim exports 
/data 192.168.1.0/24(rw,sync,all_squash)

[root@ansible conf]# cd ..
[root@ansible ansible_playbook]# ansible-playbook -C nfs.yaml

4、sersync部署

1）在ansible服务器先下载sersync
2）解压到/etc/ansible/ansible_playbook/并修改配置文件
3）推送到nfs
4）启动sersync

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/sersync.yaml
- hosts: nfs

  tasks:
    - name: scp sersync
      copy: src=./tools/sersync/ dest=/usr/local/sersync owner=www group=www mode=755

    - name: start sersync
      shell: pgrep sersync; [ $? -eq 0 ] || /usr/local/sersync/sersync2 -dro /usr/local/sersync/confxml.xml


[root@ansible ansible_playbook]# cd tools/
[root@ansible tools]# rz -E
[root@ansible tools]# tar zxf sersync2.5.4_64bit_binary_stable_final.tar.gz 
[root@ansible tools]# ls
GNU-Linux-x86  sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@ansible tools]# mv GNU-Linux-x86/ sersync
[root@ansible tools]# ls
sersync  sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@ansible tools]# cd sersync/
[root@ansible sersync]# ls
confxml.xml  sersync2
[root@ansible sersync]# cd ../..
[root@ansible ansible_playbook]# ansible-playbook -C sersync.yaml

5、web部署

1）本地安装httpd
2）修改配置文件，复制到/etc/ansible/ansible_playbook/conf
3）挂载
4）启动

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/web.yaml
- hosts: web

  tasks:
    - name: mount nfs
      mount: src=nfs1:/data path=/data fstype=nfs state=mounted
    - name: install httpd
      yum: name=httpd state=installed

    - name: config httpd
      copy: src=./conf/httpd.conf dest=/etc/httpd/conf/httpd.conf
      notify: restart httpd

    - name: start httpd
      shell: systemctl start httpd

  handlers:
    - name: restart httpd
      shell: systemctl restart httpd


[root@ansible ansible_playbook]# yum -y install httpd
[root@ansible ansible_playbook]# cp /etc/httpd/conf/httpd.conf /etc/ansible/ansible_playbook/conf/
[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/conf/httpd.conf
ServerName www.example.com:80

[root@ansible ansible_playbook]# ansible-playbook -C web.yaml

6、main.yaml

[root@ansible ansible_playbook]# vim /etc/ansible/ansible_playbook/main.yaml
- import_playbook: base.yaml
- import_playbook: rsync.yaml
- import_playbook: nfs.yaml
- import_playbook: sersync.yaml
- import_playbook: web.yaml


[root@ansible ansible_playbook]# ansible-playbook -C main.yaml				#预检测
[root@ansible ansible_playbook]# ansible-playbook main.yaml                 #执行