ansible-playbook-when案例

当系统负载超过0.7时，则关掉httpd

---
- hosts: cache
  remote_user: root
  tasks:
    - shell: uptime | awk '{printf("%.2f",$(NF-2))}'
      register: result
    - service:
        name: httpd
        state: stopped
      when: result.stdout|float > 0.7