获取错误-在模板化字符串时使用jinja2 - template错误获取错误调试消息:应为表达式，获取语句块的结尾
获取错误-在模板化字符串时使用jinja2 - template错误获取错误调试消息:应为表达式，获取语句块的结尾
提问于 2021-03-02 03:24:19
我将以下任务结果注册到"output“变量
TASK [bgp status] ****************************************************************************************************************************************************************************
ok: [4.4.4.4] => {
"msg": [
{
"bgp_state": "Established",
"neighbor": "1.1.1.1",
},
{
"bgp_state": "Down",
"neighbor": "2.2.2.2",
},
{
"bgp_state": "Established",
"neighbor": "3.3.3.3",
}
]
}我的debus任务是这样的：
- name: bgp status
debug:
msg:
- "{% if output.msg[0].bgp_state == Established %}{{output.msg[0].neighbor}} BGP IS UP{% elif %}{{output.msg[0].neighbor}}BGP IS DOWN{%- endif %}"
- "{% if output.msg[1].bgp_state == Established %}{{output.msg[1].neighbor}}BGP IS UP{% elif %}{{output.msg[1].neighbor}}BGP IS DOWN{%- endif %}"
- "{% if output.msg[2].bgp_state == Established %}{{output.msg[2].neighbor}}BGP IS UP{% elif %}{{output.msg[2].neighbor}}BGP IS DOWN{%- endif %}"错误：
fatal: [4.4.4.4]: FAILED! => {"msg": "template error while templating string: Expected an expression, got 'end of statement block'. String: {% if output.msg[0].bgp_state == Established %}{{output.msg[0].neighbor}}BGP IS UP{% elif %}{{output.msg[0].neighbor}}BGP IS DOWN{%- endif %}"}我知道我做错了，但不确定我的调试任务中的错误在哪里？
预期输出：
1.1.1.1 BGP IS UP
2.2.2.2 BGP IS DOWN
3.3.3.3 BGP IS UP回答 1
Stack Overflow用户
回答已采纳
发布于 2021-03-02 03:33:02
你已经写了：
{% elif %}{{output.msg[0].neighbor}}BGP IS DOWN{%- endif %}但我想你的意思是
..。
需要条件表达式，就像
..。此外，还需要将字符串值用引号引起来。
表达式。
解决这两个问题，我们得到：
- name: bgp status
debug:
msg:
- '{% if output.msg[0].bgp_state == "Established" %}{{output.msg[0].neighbor}} BGP IS UP{% else %}{{ output.msg[0].neighbor }} BGP IS DOWN{%- endif %}'
- '{% if output.msg[1].bgp_state == "Established" %}{{output.msg[1].neighbor}} BGP IS UP{% else %}{{ output.msg[1].neighbor }} BGP IS DOWN{%- endif %}'
- '{% if output.msg[2].bgp_state == "Established" %}{{output.msg[2].neighbor}} BGP IS UP{% else %}{{ output.msg[2].neighbor }} BGP IS DOWN{%- endif %}'给定示例输入，将生成以下结果：
TASK [bgp status] ****************************************************************************
ok: [localhost] => {
"msg": [
"1.1.1.1 BGP IS UP",
"2.2.2.2 BGP IS DOWN",
"3.3.3.3 BGP IS UP"
]
}如果我在写这篇文章，我可能会重新格式化以获得更好的可读性，并将任务放在循环中：
- name: bgp status
debug:
msg:
- >-
{% if item.bgp_state == "Established" %}
{{item.neighbor}} BGP IS UP
{% else %}
{{ item.neighbor }} BGP IS DOWN
{%- endif %}
loop: "{{ output.msg }}"页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/66428361
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