How to use variables set in inventory file for the hostname /group

[Victor Sava]

Hello

I have this inventory file:

/etc/ansible/inventory/inventory-file

[my-group]
myhost.com project=my group=group


[my-group:vars]
project=my
group=my-group

and this is my playbook

- hosts: '{{ host }}'
  gather_facts: yes
 


  roles:
    - role: collectd
      vars:
        group: {{ project }}
        project: {{ group }}
 

But for some reason ansible cant read those variables, can i know how i can access this variables ?

<Plugin write_graphite>
{% if project == "my" %}
<Node "my_graphite">
  Host "my_host"
{% elif project == "11" or project == "22" %}
<Node "11">
  Host "22"

I will be using this variables to create a flexible tempalte file