Ansible 实战：一键安装 LNMP

Ansible 配置文件 ：

[root@center /data/ansiblework]# cat ansible.cfg 
[defaults]
remote_user = root
remote_port = 22
inventory = /data/ansiblework/hosts
log_path = /var/log/ansible.log
host_key_checking = False
retry_files_enabled = False

Ansible 主机配置 ：

[root@center /data/ansiblework]# cat hosts 
[new_hosts]
192.168.1.1
192.168.1.2
192.168.1.3
[new_hosts:vars]
ansible_ssh_port = 22
# 远程连接端口
ansible_ssh_user = root
# 远程连接用户
ansible_ssh_pass = 123456
# 远程连接密码

Ansible Playbook ：

[root@center /data/ansiblework]# cat onekey_init.yml 
---
- hosts: new_hosts
gather_facts: True
tasks:
- name: 下发公钥到新主机
authorized_key: user=root key="{{ lookup('file', '/root/.ssh/id_rsa.pub') }}"
- name: 检查系统版本
fail: msg="系统版本错误，请检查"
when: ansible_facts['distribution'] != "CentOS" or ansible_facts['distribution_major_version'] != "7"
- name: 检查是否挂载/data目录
fail: msg="/data目录未挂载，请检查"
when: not ansible_mounts[1].mount == "/data"
- name: 检查/data目录是否挂载异常
fail: msg="/data目录小于250G，请检查"
when: ansible_mounts[1].size_total | int < 250000000000
- name: 拷贝初始化脚本
template: src={{ item }} dest=/tmp/{{ item }} owner=root group=root
with_items:
- base_lnmp.sh
- lnmp_install.sh
- name: 检查是否安装过LNMP
shell: if [ -f /tmp/install.log ];then grep 'Install Complete' /tmp/install.log;fi || echo None
register: result
- name: 开始安装LNMP
shell: /bin/sh /tmp/lnmp_install.sh > /tmp/install.log
when: "'Install Complete' not in result.stdout"
- name: 检查是否安装按成
shell: if [ -f /tmp/install.log ];then grep 'Install Complete' /tmp/install.log;fi || echo None
register: result
- fail: msg="安装失败，请登录到安装机器查看/tmp/install.log查看原因"
when: "'Install Complete' not in result.stdout"
- name: 检查LNMP安装状态
shell: ps aux | egrep "(php|nginx|mysql|zabbix|salt)"
register: result
- fail: msg="{{ item }}安装异常，请检查"
when: "item not in result.stdout"
with_items:
- php
- mysql
- nginx
- zabbix
- salt-minion