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一、架构

1.主机

ansible+haproxy+（RS1&RS2）

2.mark down方式

haproxy基于内容检测后端RS

二、play-book文件

vim /etc/ansible/hosts[nginx-web]        192.168.17.175        192.168.17.176

vim  /etc/ansible/web.yml---- hosts: nginx-web  remote_user: root  serial: 1  vars:   - check: /data/web/xiaomi/check.html   tasks:  - name: state_down    copy: content="down" dest={
  { check }}  - name: sleep    shell: sleep 5  - name: stop_servive    service: name={
  { item }} state=stopped    with_items:    - nginx    - php-fpm  - name: deploy    copy: src=/tmp/xiaomi1  dest=/data/web/ force=yes  - name: link    file: src=/data/web/xiaomi1  dest=/data/web/xiaomi  state=link  - name: state_ok    copy: content="ok" dest={
  { check }}  - name: start_service    service: name={
  { item }} state=started    with_items:    - nginx    - php-fpm

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