ansible - example of template if else

opt1_template.j2

{# style 1 - long form #}
{% if filepath == '/var/opt/tomcat_1' %}
  {% set tomcat_value = tomcat_1_value %}
{% else %}
  {% set tomcat_value = tomcat_2_value %}
{% endif %}

{# style 2 - short form #}
{% set tomcat_value = tomcat_1_value if (filepath == '/var/opt/tomcat_1') else tomcat_2_value %}

{# style 3 - with ternary filter #}
{% set tomcat_value = (filepath == '/var/opt/tomcat_1')|ternary(tomcat_1_value, tomcat_2_value) %}

<Server port={{ tomcat_value }} shutdown="SHUTDOWN">

opt2_play.yml

---
- hosts: foo
  vars:
    tomcat_1_value: 'bob'
    tomcat_2_value: 'bar'
  tasks:
    # style 1 using filter
    - set_fact:
        tomcat_value: "{{ (filepath == '/var/opt/tomcat_1') | ternary(tomcat_1_value, tomcat_2_value) }}"
    # style 2
    - set_fact:
        tomcat_value: "{{ tomcat_1_value if (filepath == '/var/opt/tomcat_1') else tomcat_2_value }}"


    - template:
        ...

opt2_template.j2

<Server port={{ tomcat_value }} shutdown="SHUTDOWN">