jinja2 nested variables

jinja2, python, yaml

Solution

The variable `hosts` is a `dict`. The correct way to access values in `dict` is to use `[]` operator.

{{ fqdn }}
{% for interface in hosts[fqdn] %}
    {{ interface }}
    {{ hosts[fqdn][interface]['ip'] }}
{% endfor %}

`.` operator is used to access attribute of an object.

Problem

I am currently learning jinja2 and i am unsure on how to address variables the correct way: Here are my variables in yaml: ``` --- hosts: app201.acme.com: {eth0: {ip: 46.0.0.1, netmask: 255.255.255.255}} graphite.acme.com: {eth0: {ip: 46.0.0.2, netmask: 255.255.255.255}, eth0.1: {ip: 10.2.90.1, netmask: 255.255.255.255}} ``` and here the jinja2 template: ``` {{ fqdn }} {% for interface in hosts[fqdn] %} {{ interface }} {{ hosts[fqdn].interface.ip }} << doesn't work {{ hosts[fqdn].{{ interface }}.ip }} << doesn't work {{ interface.ip }} << doesn't work {% endfor %} ``` so currently my output looks like this since I can't access second dimension of yaml hash. graphite.acme.com eth0.1 eth0

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