ansible-playbook 练习

1.Ansible playbook实现apache批量部署,并对不同主机提供以各自IP地址为内容的index.html

yum install ansible -y

mkdir /ansible
cd /ansible
vim /etc/ansible/hosts
#添加分组
[web]
192.168.88.17
192.168.88.7

cd /ansible

#编写playblook
vim httpd_install.yml
- hosts: web
  tasks:
    - name: install httpd
      yum: name=httpd
    - name: start index page
      copy: content={{ansible_all_ipv4_addresses}} dest=/var/www/html/index.html
    - name: start httpd
      service: name=httpd state=started

#测试
ansible-playbook -C httpd_install.yml

#没问题，执行
ansible-playbook  httpd_install.yml

#验证
.....

2.ansible-playbook实现MySQL的二进制部署

#准备my.cnf
mkdir files
cat my.cnf
[mysqld]
user=mysql
basedir=/usr/local/mysql
datadir=/data/3306
server_id=6
port=3306
socket=/tmp/mysql.sock

[mysql]
socket=/tmp/mysql.sock


#编写playbook
vim mysql_install.yml
- hosts: web
  gather_facts: no
  vars:
    version: 5.7.26
    file_name: mysql-{{version}}-linux-x86_64.tar.gz
  tasks:
    - name: create mysql group
      group: name=mysql system=yes
    - name: create mysql user
      user: name=mysql group=mysql shell=/sbin/nologin system=yes create_home=no
    - name: create mysql data dir
      file: path=/data/3306 state=directory owner=mysql
    - name: download mysql file
      get_url: url=https://downloads.mysql.com/archives/get/p/23/file/mysql-{{version}}-linux-glibc2.12-x86_64.tar.gz dest=/root/ timeout=60
    - name: unarchive
      unarchive: copy=no src=/root/mysql-{{version}}-linux-glibc2.12-x86_64.tar.gz dest=/usr/local/
    - name: set link
      file: src=/usr/local/mysql-{{version}}-linux-glibc2.12-x86_64 dest=/usr/local/mysql state=link
    - name: copy my.conf
      copy: src=my.cnf dest=/etc/my.cnf
    - name: init data dir
      shell: /usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --datadir=/data/3306
    - name: PATH variable
      copy: content='PATH=/usr/local/mysql/bin:$PATH' dest=/etc/profile.d/mysql.sh
    - name: copy service file
      shell: /bin/cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld;chkconfig --add mysqld
    - name: start service
      service: name=mysqld state=started enabled=yes

PS: get_url 把超时时间改长，不然可能下载失败，默认10

#测试
ansible-playbook -C mysql_install.yml

#没问题，执行
ansible-playbook  mysql_install.yml

#验证
.....