问题描述
我为API服务创建了一个复杂的状态，它涉及git checkouts，python venv，uwsgi，nginx等。它工作正常。
I created a complex state for API service, it involves git checkouts, python venv, uwsgi, nginx, etc etc. It works fine.
现在，我想将其转换为模板，并每分钟执行几次，并使用从支柱提供的变量-例如。
Now I would like to turn it into a template and execute it several times per minion, with variables supplied from pillar - i.e something like.
{% for apiserver in pillar.apiservers %}
include apiserver_template.sls, locals: apiserver.config
{% endfor %}
其中apiserver_template将与提供的上下文一起使用，apiserver.config具有每个API的所有配置数据实例。我知道语法是错误的，但希望我能传达这个想法-理想情况下，类似于执行提供局部变量的ruby局部函数。
where apiserver_template will work with context supplied to it, with apiserver.config having all config data for each API instance. I know syntax is wrong but hopefully I am communicating the idea - ideally, something like executing ruby partials with supplying local variables.
在盐田地区如何正确完成？
How is it done properly in saltland?
推荐答案
在我看来，Jinja Macro是您要用于此的东西。您可以在此处找到有关用法的更多信息：
It sounds to me like Jinja Macro is something you want to use for this. You can find more information about usage here: https://docs.saltstack.com/en/2015.8/topics/development/conventions/formulas.html#jinja-macros
总之在您的情况下，可能看起来像这样：
In short what you will have in your case may look like:
{% macro api_server(git_repo, python_venv_path, python_venv_requirements) %}
{{python_venv_path}}:
virtualenv.managed:
- system_site_packages: False
- requirements: salt://{{python_venv_requirements}}
{{git_repo}}:
git.latest:
- name: {{git_repo}}
{% endmacro %}
假设您有一个支柱apiserver，其中每个api服务器都有git_repo，python_venv_path和python_venv_requirements值，则可以使用如下宏：
Assuming you have a pillar apiservers where each api server has git_repo, python_venv_path and python_venv_requirements values, you can use the macro like this:
{% for server in salt.pillar.get('apiservers', []) %}
{{ api_server(server['git_repo'], server['python_venv_path'], server['python_venv_requirements']) }}
{% endfor %}
如果需要-您还可以将宏放在单独的状态文件中，然后将marco作为常规盐资源导入。
If you want - you can also put a macro in a separate state file and then import a marco as a regular salt resource.
请也不是，我使用了salt.pillar.get（'apiservers'，[]）代替了column.apiservers。这是从支柱获取数据的更安全的方法。如果由于某种原因支柱不可用-后面的代码将导致空dict而不是在第一种情况下失败。
Please also not that instead of pillar.apiservers I used salt.pillar.get('apiservers', []). This is a safer way to get data from pillar. If for some reason a pillar is unavailable - the later code will result in empty dict instead of failure in first case.
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