Python (Jinja2) variable inside a variable

Question

I am trying to iterate over a dictionary in a Jinja2 template (in Ansible). One of the arrays or keys in the dictionary is 'abcd'

This {{ item.value.abcd.port }} works fine, but key 'abcd' varies in each dictionary.

I am looking to do something like below using a variable 'nginx_dir'.

{% set nginx_dir = item.value.keys().1 %}
{% set my_port = item.value.nginx_dir.port %}

Or without using a variable at all, something like this

{{ item.value.[item.value.keys().1].port }}

vikas027 · Accepted Answer · 2015-10-08 00:59:48Z

10

I had to use either of these to use a variable inside a variable.

{% set my_port = item.value.get(nginx_dir).port %}
{% set my_port = item.value[nginx_dir].port %}

I didn't wanted to hardcode my Jinja2 templates, this is exactly what I was looking for.

edited Oct 8, 2015 at 0:59

answered Oct 7, 2015 at 5:16

vikas027

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2 Comments

BMW Over a year ago

Could you show me how the variable nginx_dir looks like, how to set the value on it when it is dynamically changed.

vikas027 Over a year ago

The directory is /opt/nginx/conf.d/something. I had used a dictionary, and then looped over it. Sorry, it has been a while, I don’t have the exact code to show you.

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