根据给定的服务列表查找目标 Windows 主机中正在运行的服务，并在服务未运行时启动答案

【问题标题】：Finding Which services are running in target windows host based on given service list and start if the service is not running根据给定的服务列表查找目标 Windows 主机中正在运行的服务，并在服务未运行时启动
【发布时间】：2021-08-21 03:13:29
【问题描述】：

我有一组 Windows 服务，需要了解这些服务是否在目标 Windows 主机中运行。如果至少有一项服务没有运行，我需要启动这些服务并需要将启动模式设置为自动。

- name: Check weather service is running or not
    ansible.windows.win_service_info:
      name: "{{ item }}"
    register: win_service_info
    with_items:
      - BrokerInfrastructure #Background Tasks Infrastructure (BrokerInfrastructure) Service
      - DcomLaunch #DCOM Server Process Launcher Service
      - gpsvc #Group Policy Client Service
      
  - name: Start the services
    ansible.windows.win_service:
      name: << don't know how to write this part >>
      start_mode: auto
      state: started
    register: service_startup 
    with_items: "{{ win_service_info.results }}"
    when: << don't know how to write this part >>

【问题讨论】：

标签： ansible windows-services system-administration

【解决方案1】：

您无需事先查找服务状态。只需描述服务应该处于的状态，ansible 将报告 changed 如果它必须修改任何内容（启动服务，更改启动模式......）或 ok 如果它已经处于预期状态。

  - name: Start/modify the services if needed
    ansible.windows.win_service:
      name: "{{ item }}"
      start_mode: auto
      state: started
    with_items:
      - BrokerInfrastructure 
      - DcomLaunch
      - gpsvc

现在，如果您仍想在执行特定任务之前检测服务状态，您应该简单地调试您的 win_service_info.results 变量以获得很好的概览。我无法自己测试，因为我手头没有任何 Windows 盒子。但如果我相信win_service_info module's returned values documentation，您可以执行以下操作：

- name: do something depending on service state
  debug:
    msg: "I would do something because service {{ item.services.0.name }}
           is in state {{ item.services.0.state }}"
  when:
    - item.exists
    - item.services.0.state in ['stopped', 'paused']
  loop: "{{ win_service_info }}"

【讨论】：