ansible - example of template if else

opt1_template.j2

{% if filepath == /var/opt/tomcat_1 %}
  {% set tomcat_value == tomcat_1_value %}
{% else %}
  {% set tomcat_value == tomcat_2_value %}
{% endif %}
<Server port={{ tomcat_value }} shutdown="SHUTDOWN">

opt2_play.yml

---
- hosts: foo
  vars:
    tomcat_1_value: 'bob'
    tomcat_2_value: 'bar'
  tasks:
    - set_fact:
        tomcat_value: "{{ filepath == /var/opt/tomcat_1 | ternary(tomcat_1_value, tomcat_2_value) }}"
    
    - template:
        ...

opt2_template.j2

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