循环遍历字典字典，其中包含带ansible和jinja2的列表

Question

我有以下数据结构：

static_dhcp_groups:
  'site hypervisors':
    - hostname: "hypervisor-1"
      mac_address: "f0:1f:af:ce:60:d9"
      ip_address: "192.168.10.1"
    - hostname: "hypervisor-2"
      mac_address: "f0:1f:af:ce:60:da"
      ip_address: "192.168.10.2"
  'site workstations':
    - hostname: "workstation-1"
      mac_address: "52:54:00:cb:93:ac"
      ip_address: "192.168.10.50"

我想要创建一个jinja模板，它将生成一个文件，如下所示：

# site hypervisors
group {
  host hypervisor-1 {
    hardware ethernet f0:1f:af:ce:60:d9;
    fixed-address 192.168.10.1;
  }
  host hypervisor-2 {
    hardware ethernet f0:1f:af:ce:60:da;
    fixed-address 192.168.10.2;
  }
}

# site workstations
group {
  host workstation-1 {
    hardware ethernet 52:54:00:cb:93:ac;
    fixed-address 192.168.10.50;
  }
}

我正在努力循环数据以获得我需要的结果。到目前为止，我的jinja2模板如下所示：

{% for dhcp_group in static_dhcp_groups %}
# {{ dhcp_group.key }}
group {
  {% for dhcp_host in dhcp_group %}
  host {{ dhcp_host.key.hostname }} {
    hardware ethernet {{ dhcp_host.key.mac_address }};
    fixed-address {{ dhcp_host.key.ip_address }};
  } 
  {% endfor %}
}

{% endfor %}

我收到的错误消息如下：

TASK [generate the file.] ****************************************************************************************************************************************************************************************************************************************************************
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ansible.errors.AnsibleUndefinedVariable: 'ansible.parsing.yaml.objects.AnsibleUnicode object' has no attribute 'key'
fatal: [localhost]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: 'ansible.parsing.yaml.objects.AnsibleUnicode object' has no attribute 'key'"}

我很难弄清楚该用什么来提取单个的字典元素。它应该是dhcp_host.key.hostname，dhcp_host.value.hostname，dhcp_host.item.hostname，还是与[]不同的？我完全被困住了。

Answer 1

我朋友帮我修的。jinja2模板应该如下所示：

{% for dhcp_group in static_dhcp_groups %}
# {{ dhcp_group }}
group {
{% for dhcp_host in static_dhcp_groups[dhcp_group] %}
  host {{ dhcp_host.hostname }} {
    hardware ethernet {{ dhcp_host.mac_address }};
    fixed-address {{ dhcp_host.ip_address }};
  }
{% endfor %}
}

{% endfor %}