从 ansible 中的输出生成 Jinja2 中的模板

Question

这是我的问题：需要从 csv 文件数据中获取数据，并从该数据中运行一个命令并将结果呈现在 jinja2 模板中。问题是，每次我运行剧本时，这都会覆盖我的 jinja2 模板。有谁知道如何不覆盖这个？

name: check vrf configuration 
  hosts: HOST1
  gather_facts: no

  tasks: 
    - name: Read
      read_csv:
        path: /ansible/data-vlan.csv
      register: csvfile_out

    - name: Configuring
      include: vrf.yml file={item}  
      with_items: "{{ csvfile_out.list }}"

data-vlan.csv

VRF
CUSTOMER1,
CUSTOMER2,

vrf.yml

 - name: Extract Data
      set_fact:
        VRF: "{{ lookup('csvfile', '{{item.VRF}} file=data-vlan.csv col=0 delimiter=,') }}"
    
    - name: show VRF 
      ios_command:
        commands: 
         - show run vrf {{VRF}}
    - name: jinja2
      template:
        src: template.j2
        dest: /ansible/VRF_STATUS.txt

template.j2

{% for item in status.stdout_lines.0 %}
{% if 'interface' in item %}
no interface {{ item.split().1 }}
{% elif 'vrf context' in item %}
no {{ item }}
{% endif %}
{% endfor%}

输出：

],
"stdout_lines": [
    [
        "!Command: show running-config vrf CUSTOMER1",
        "!Running configuration last done at: Fri Feb 18 11:35:21 2022",
        "!Time: Mon Feb 28 11:37:51 2022",
        "",
        "version 7.0(3)I7(8) Bios:version 07.66 ",
        "",
        "interface Vlan10",
        "  vrf member CUSTOMER1",
        "",
        "interface Vlan12",
        "  vrf member CUSTOMER1",
        "vrf context CUSTOMER1",
        "  description [CUSTOMER1]",
        "  ip route 0.0.0.0/0 10.1.1.1",
        "  address-family ipv4 unicast"
    ],

],
"stdout_lines": [
    [
        "!Command: show running-config vrf CUSTOMER1",
        "!Running configuration last done at: Fri Feb 18 11:35:21 2022",
        "!Time: Mon Feb 28 11:37:51 2022",
        "",
        "version 7.0(3)I7(8) Bios:version 07.66 ",
        "",
        "interface Vlan20",
        "  vrf member CUSTOMER2",
        "",
        "interface Vlan22",
        "  vrf member CUSTOMER2",
        "vrf context CUSTOMER2",
        "  description [CUSTOMER2]",
        "  ip route 0.0.0.0/0 10.2.2.1",
        "  address-family ipv4 unicast"
    ],

VRF_STATUS.txt

no interface vlan20
no interface vlan22
no vrf context CUSTOMER2

**- 实际上希望有这样的两个客户：

   no interface vlan10
   no interface vlan12
   no vrf context CUSTOMER1
   no interface vlan20
   no interface vlan22
   no vrf context CUSTOMER2**

有什么想法吗？谢谢！

Answer 1

如果我理解正确的话，您从 yaml 文件中提取数据，并想要创建一个包含使用 jinja2 模板化的数据的文件。

我建议不要使用模板模块，而是使用 blockinfile 模块与模板查找相结合，如下所示：

- name: jinja2
  blockinfile:
    create: true
    block: "{{ lookup('template', 'template.j2') }}"
    path: /ansible/VRF_STATUS.txt

这样，模板化值将附加到文件中。如果您没有配置如何处理标记，您的文件中将会有一些“BEGIN”和“END”标记。请参阅 https://docs.ansible.com/ansible/latest /collections/ansible/builtin/blockinfile_module.html 了解更多信息。