1.首先安裝ansible，倒騰了好幾天離線安裝，結果都是安失敗

yum install ansible

2.查詢安裝的ansible

find / -name ansible

安裝在/etc/ansible 3.進入ansible目錄，檢視安裝好的目錄結構

cd /etc/ansible

4.由於之前已經安裝過mysql，對於自動化部署的過程也就清晰了（先手動-ansible部署-寫程式碼） 目錄結構

roles —mysql_repl ——files ————mysql-5.7.23-1.el7.x86_64.rpm-bundle.tar ——handles ——tasks ————main.yml ——templates ——vars ————main.yml ansible.cfg hosts（存放機器的ip） test.yml(主入口) 5.編輯host

最後一行加上

[mysql_slave]
192.168.236.9 ansible_ssh_user=root ansible_ssh_port=22 ansible_ssh_pass=xuqin1993
[mysql_master]
192.168.236.10 ansible_ssh_user=root ansible_ssh_port=22 ansible_ssh_pass=xuqin1993

6.編輯test.yml

- hosts: mysql_master
  roles:
    - role: mysql_repl

- hosts: mysql_slave
  roles:
    - role: mysql_repl
 

7.在/etc/ansible/roles/mysql_repl/files下放mysql的.tar檔案 8.在/etc/ansible/roles/mysql_repl/tasks的main.yml編輯

- name: tar mysql.tar
  shell: tar -xvf {{mysql_dir}}/{{mysql_version}}.tar -C {{ mysql_dir }}/
- name: install community
  shell: rpm -ivh {{mysql_dir}}/mysql-community-common-5.7.23-1.el7.x86_64.rpm
- name: install libs
  shell: rpm -ivh {{mysql_dir}}/mysql-community-libs-5.7.23-1.el7.x86_64.rpm
- name: install libs-compat
  shell: rpm -ivh {{mysql_dir}}/mysql-community-libs-compat-5.7.23-1.el7.x86_64.rpm
- name: install client
  shell: rpm -ivh {{mysql_dir}}/mysql-community-client-5.7.23-1.el7.x86_64.rpm
- name: install service
  shell: rpm -ivh {{mysql_dir}}/mysql-community-server-5.7.23-1.el7.x86_64.rpm  --force --nodeps
- name: start mysqld
  service:
    name: mysqld
    state: started
 

9./etc/ansible/roles/mysql_repl/vars下的main.yml

mysql_version: mysql-5.7.23-1.el7.x86_64.rpm-bundle
mysql_dir: /etc/ansible/roles/mysql_repl/files

10.執行ansible-playbook test.yml 11.成功結果 補充：不刪除centos 7預設是mariadb資料庫，安裝libs會報錯，先手動刪除兩臺機器的mariadb(版本不一樣，無法統一執行)