Dictionary 在ansible字典中循环以分配字典值

有没有办法通过ansible字典循环分配其他ansible字典值

我的小组成员包括以下人员：

domain_controllers:
  dc0:
    hostname: "dc0"
    ip_address: "192.168.1.0"
  dc1:
    hostname: "dc1"
    ip_address: "192.168.1.1"
  dc2:
    hostanme: "dc2"
    ip_address: "192.168.1.2"

domain_controllers:
  - ip_address: "192.168.1.0"
    hostname: "dc0"
  - ip_address: "192.168.1.1"
    hostname: "dc1"
  - ip_address: "192.168.1.2"
    hostname: "dc2"

我有一个通用的keepalive角色，它配置服务器角色用来为这些域控制器创建VIP的keepalive

下面是我的

roles/servers/forward/vars.yml

，keepalived角色使用它来构建keepalived.conf文件

virtual_server:
  - virutal_server_ip: "192.168.1.10"
    virtual_server_port: 389
    ...
    real_servers:
      - real_ip: "192.168.1.0"
        real_port: 389
        description: "dc0"
        ...
      - real_ip: "192.168.1.1"
        real_port: 389
        description: "dc1"
        ...
      - real_ip: "192.168.1.2"
        real_port: 389
        description: "dc2"
        ...

  - virtual_server_ip: "192.168.1.10"
    virtual_server_port: 636
    ...
    real_servers:
      - real_ip: "192.168.1.0"
        real_port: 636
        description: "dc0"
        ...
      - real_ip: "192.168.1.1"
        real_port: 636
        description: "dc1"
        ...
      - real_ip: "192.168.1.2"
        real_port: 636
        description: "dc2"
        ...

我已经在keepalived角色中设置了jinja格式，可以基于这些变量构建

/etc/keepalived.conf

我要做的是根据

domain\u controllers

字典的内容分配这些变量。如何使用

set\u facts

分配这样一个大型嵌套字典

我只想在

域控制器

中循环，因为我想在升级和/或迁移到新DC时更新我的

组变量/all

，因为我还有其他使用此变量的剧本

---

此外，还可以在

vars/main.yml

中分配这些变量，而不是通过

set\u facts

任务分配这些变量。

我通过以下方法解决了这个问题：

在组_vars/all中：

domain_controllers:
  dc0:
    hostname: "dc0"
    ip_address: "192.168.1.0"
  dc1:
    hostname: "dc1"
    ip_address: "192.168.1.1"
  dc2:
    hostanme: "dc2"
    ip_address: "192.168.1.2"

domain_controllers:
  - ip_address: "192.168.1.0"
    hostname: "dc0"
  - ip_address: "192.168.1.1"
    hostname: "dc1"
  - ip_address: "192.168.1.2"
    hostname: "dc2"

在我的vars文件中，我使用以下命令调用列表：

virtual_server:
  - virutal_server_ip: "192.168.1.10"
    virtual_server_port: 389
    ...
    real_servers:
      - real_ip: "{{ domain_controllers.0.ip_address }}"
        real_port: 389
        description: "{{ domain_controllers.0.hostname }}"
        ...
      - real_ip: "{{ domain_controllers.1.ip_address }}"
        real_port: 389
        description: "{{ domain_controllers.1.hostname }}"
        ...
      - real_ip: "{{ domain_controllers.2.ip_address }}"
        real_port: 389
        description: "{{ domain_controllers.2.hostname }}"
        ...

  - virtual_server_ip: "192.168.1.10"
    virtual_server_port: 636
    ...
    real_servers:
      - real_ip: "{{ domain_controllers.0.ip_address }}"
        real_port: 636
        description: "{{ domain_controllers.0.hostname }}"
        ...
      - real_ip: "{{ domain_controllers.1.ip_address }}"
        real_port: 636
        description: "{{ domain_controllers.1.hostname }}"
        ...
      - real_ip: "{{ domain_controllers.2.ip_address }}"
        real_port: 636
        description: "{{ domain_controllers.2.hostname }}"
        ...

这样做的缺点是，如果

domain\u controllers

中没有至少3项，则playbook会出错。我仍然想找到一种方法来循环列表