how to append to a list in jinja2 for ansible

Question

Below is the jinja2 template that i wrote to use in ansible.

{% set port = 1234 %} {% set server_ip = [] %} {% for ip in host_ip  %} {% do server_ip.append({{ ip }}:{{ port }}) %} {% endfor %} {% server_ip|join(', ') %} 

Below is the my desired output:

devices = 192.168.56.14:1234,192.168.56.13:1234,192.168.56.10:1234 

But when i am running the ansible playbook, it is throwing the error as below:

"AnsibleError: teme templating string: Encountered unknown tag 'do'. Jinja was looking for th: 'endfor' or 'else' 

Any help would be appreciated..

Answer 1

Try below code:

{% set port = '1234' %} {% set server_ip = [] %} {% for ip in host_ip  %} {{ server_ip.append( ip+":"+port ) }} {% endfor %} {{ server_ip|join(',') }} 

You ll get:

192.168.56.14:1234,192.168.56.13:1234,192.168.56.10:1234