Keep YAML list structure in Ansible templates - templates

Question

Say I have a variable file
---
app1:
environments:
- test
- demo
paths:
- /home/someuser/_env_/*.log
- /var/log/something/*.log
id: _env_
that's included in my playbook like this
---
- hosts: all
become: yes
vars:
apps:
- app1
vars_files:
- ~/vars/app1_vars.yml
tasks:
- name: Update config
template:
src: foo.j2
dest: /home/configurer/test.conf
owner: configurer
group: configurer
mode: '0644'
lstrip_blocks: yes
and the template itself is
{% for app in apps %}
{% for env in vars[app]['environments'] %}
- type: log
enabled: true
paths:
{% for path in vars[app]['paths'] %}
- {{ path | replace("_env_", env) }}
{% endfor %}
fields:
app_id: {{ vars[app]['id'] | replace("_env_", env) }}
{% endfor %}
{% endfor %}
That gives me as output
- type: log
enabled: true
paths:
- /home/someuser/test/*.log
- /var/log/something/*.log
fields:
app_id: test
- type: log
enabled: true
paths:
- /home/someuser/demo/*.log
- /var/log/something/*.log
fields:
app_id: demo
Is there a more compact and nicer way to iterate over the paths variable list and keep the YAML list structure with the -s?

Answer 1

After some experimenting I did the following as an alternative:
Changed the variable file:
---
app1:
environments:
- test
- demo
filebeat_properties:
paths:
- /home/someuser/_env_/*.log
- /var/log/something/*.log
fields:
app_id: _env_
Used to_nice_yaml to pretty-print the config:
{% for app in apps %}
{% for env in vars[app]['environments'] %}
- type: log
enabled: true
{{ vars[app]["filebeat_properties"] | to_nice_yaml(indent=2, width=9999) | indent(2) | replace("_env_", env) }}
{% endfor %}
{% endfor %}