我正在尝试在Jinja模板中创建bash脚本。我有以下一行:
SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
但是会引发错误:
AnsibleError: template error while templating string: Missing end of comment tag
经过调查,我发现可以使用{% raw %}...{% endraw %}
块来获取文字,但是对于{#
来说,获得类似的错误仍然不起作用:
An unhandled exception occurred while templating
Error was a <class 'ansible.errors.AnsibleError'>, original message: template error while templating string: Missing end of comment tag
在不更改bash逻辑的情况下是否有解决方法?
谢谢
更新:包括示例
可播放的剧本:
... more ansible playbook stuff ...
tasks:
- name: create script
template:
src: "src/path/to/script.sh.j2"
dest: "dest/path/to/output/script.sh"
- name: user data script as string
set_fact:
userdata: "{{ lookup('file', 'path/to/script.sh') }}"
- name: some cloudformation thing
cloudformation:
stack_name: "stack_name"
state: present
region: "some region"
template: "path/to/template/cloudformation.json"
template_parameters:
... a bunch of params ...
UserDataScript: "{{ userdata }}"
tags:
... tags ..
metadata: "... metadata ..."
register: cloudformation_results
jinja模板(script.sh.j2):
... more script stuff ...
SOME_ARRAY="some array with elements"
SOME_ARRAY=($SOME_ARRAY)
SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
... more script stuff ...
问题:
此行:SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
在第一个模板任务中导致要求结束#}
注释标记。首先修复添加原始块的问题:
{% raw %}
SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
{% endraw %}
修复了模板部分,但是cloudformation模块也应用了模板替换,因此它将具有相同的错误。
修复:
{% raw %}
SOME_ARRAY_COUNT=${{ '{#' }}SOME_ARRAY[@]}
{% endraw %}
第一个模板模块删除原始块并保留{{ '{$' }}
,cloudformation模块找到{{ '{$' }}
并应用文字替换。
答案 0 :(得分:0)
如果我将其放入script.sh
:
SOME_ARRAY="some array with elements"
SOME_ARRAY=($SOME_ARRAY)
{% raw %}
SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
{% endraw %}
并将其放入playbook.yml
:
---
- hosts: localhost
gather_facts: false
tasks:
- name: create script
template:
src: ./script.sh.j2
dest: ./script.sh
当我运行ansible-playbook playbook.yml
时,输出如下:
PLAY [localhost] *************************************************************************************************************************************************************
TASK [create script] *********************************************************************************************************************************************************
changed: [localhost]
script.sh
如下:
SOME_ARRAY="some array with elements"
SOME_ARRAY=($SOME_ARRAY)
SOME_ARRAY_COUNT=${#SOME_ARRAY[@]}
据我所知,一切似乎都按预期进行。