ansible 重启网络服务

Question

我从手册中复制粘贴了它，但它在我的剧本（2.0.2 版）中失败了：

- service: name=network state=restarted args=eth0

我收到此错误：

"msg": "Failed to stop eth0.service: Unit eth0.service not loaded.\nFailed to start eth0.service: Unit eth0.service failed to load: No such file or directory.\n"}

请问正确的语法是什么？

Answer 1

就这样做（@nasr 已经评论过）：

- name: Restart network
  service:
    name: network
    state: restarted

但是，如果您在重新启动之前更改网络配置，则重新启动后，诸如 IP 地址之类的内容会因连接丢失（IP 地址已更改）而挂起。

Answer 2

有一种方法可以把事情做好。

任务.yml

- name: net configuration step 1
  debug:
    msg: we changed some files
  notify: restart systemd-networkd

- name: net configuration step 2
  debug:
    msg: do some more work, but restart net services only once
  notify: restart systemd-networkd

处理程序.yml

- name: restart systemd-networkd
  systemd:
    name: systemd-networkd
    state: restarted
  async: 120
  poll: 0
  register: net_restarting

- name: check restart systemd-networkd status
  async_status:
    jid: "{{ net_restarting.ansible_job_id }}"
  register: async_poll_results
  until: async_poll_results.finished
  retries: 30
  listen: restart systemd-networkd

Answer 3

根据Ansible 2.7.8。您必须进行以下更改才能重新启动网络。

注意：我在 Ubuntu 16.04 上尝试过这个

场景一：仅网络重启

- name: Restarting Network to take effect new IP Address
  become: yes 
  service:
    name: networking
    state: restarted

场景2：刷新接口然后重新启动网络

- name: Flushing Interface
  become: yes
  shell: sudo ip addr flush "{{net_interface}}"

- name: Restarting Network
  become: yes 
  service:
    name: networking
    state: restarted

注意：确保您已net_interface配置并导入到执行此 Ansible 任务的文件中。

输出

请查看我在屏幕上收到的以下输出。