Change variable in Ansible template based on group

Question

I\'ve got an Ansible inventory file a bit like this:

[es-masters]
host1.my-network.com

[es-slaves]
host2.my-network.com
host3.my-network.com

[es:children]
es-m         


        

Answer 1

To avoid error with non existing group you should check first if the group exists:

{% if 'es-masters' in group_names and ansible_fqdn in groups['es-masters'] %}
node_master=true
{% else %}
node_master=false
{% endif %}