在组的其他成员上运行ansible任务，但不对当前成员运行

Question

所以我有一组nginx服务器：

[nginx_internal_servers]
n01.local
n02.local
n03.local

我有个预部署任务要运行。我是在serial:1模式下运行的，我只想让这个预部署任务在除我之外的所有人身上运行。

目前，我的任务如下所示，它完美地运行在所有nginx服务器上：

pre_tasks:
    - name: Take service out of nginx upstream pools
          local_action: command {{ playbook_dir }}/scripts/nginx-upstream-management.sh -s {{ item[0] }} -r {{ item[2] }} -g {{ item[1] }}
          with_nested:
            - groups['nginx_internal_servers']
            - services_endpoints.keys()
            - ansible_all_ipv4_addresses|last

如何将当前节点从列表groups['nginx_internal_servers']中排除，有什么想法吗？

Answer 1

明白了!使用时间:)

pre_tasks:
    - name: Take service out of nginx upstream pools
          local_action: command {{ playbook_dir }}/scripts/nginx-upstream-management.sh -s {{ item[0] }} -r {{ item[2] }} -g {{ item[1] }}
          with_nested:
            - groups['nginx_internal_servers']
            - services_endpoints.keys()
            - ansible_all_ipv4_addresses|last
          when: item[0] != inventory_hostname

Answer 2

通用任务版本

- name: run on all but the first host in a play
  some_module: some_param=some_value
  when: inventory_hostname != play_hosts[0]