Conditionally define variable in Ansible

Question

I want to conditionally define a variable in an Ansible playbook like this:

my_var: \"{{ \'foo\' if my_condition}}\"
         


        

Answer 1

This code may help you to define a variable with condition.

- hosts: node1
  gather_facts: yes
  tasks:
   - name: Check File
     shell: ls -ld /etc/postfix/post-install
     register: result
     ignore_errors: yes

   - name: Define Variable
     set_fact:
         exists: "{{ result.stdout }}"
     when: result|success

   - name: Display Variable
     debug: msg="{{ exists }}"
     ignore_errors: yes

So here the exists will display only if the condition is true.