Ansible使用角色部署数据库主从

部署mariadb数据库主从

配置主机清单

[root@ansible ansible]# vim hosts
[mysql]
node4
node5

[mysql_master]
node4

[mysql_slave]
node5

创建角色

[root@ansible roles]# ansible-galaxy init mariadb
- Role mariadb was created successfully

编写任务

[root@ansible roles]# cd mariadb/
[root@ansible mariadb]# vim tasks/main.yml
---
# tasks file for mariadb
- name: rm repo
  shell:
    cmd: rm -rf /etc/yum.repos.d/*

- name: mount cdrom
  mount:
    src: /dev/sr0
    path: /mnt
    fstype: iso9660
    state: mounted

- name: set repo1
  yum_repository:
    file: local
    name: BaseOS
    description: BaseOS
    baseurl: file:///mnt/BaseOS
    enabled: yes
    gpgcheck: no

- name: set repo2
  yum_repository:
    file: local
    name: AppStream
    description: AppStream
    baseurl: file:///mnt/AppStream
    enabled: yes
    gpgcheck: no

- name: install mariadb
  yum:
    name:
      - mariadb
      - mariadb-server
    state: present

- name: modify config
  template:
    src: masterconfig.cnf.j2
    dest: /etc/my.cnf
  when: inventory_hostname in groups.mysql_master

- name: modify config2
  template:
    src: slaveconfig.cnf.j2
    dest: /etc/my.cnf
  when: inventory_hostname in groups.mysql_slave

- name: restart mariadb
  service:
    name: mariadb
    state: restarted
    enabled: yes

- name: stop firewalld
  service:
    name: firewalld
    state: stopped
    enabled: no

- name: stop selinux
  lineinfile:
    path: /etc/selinux/config
    regexp: '^SELINUX='
    line: SELINUX=disabled

- name: stop selinux1
  shell:
    cmd: setenforce 0

- nam