Ansible playbook vars not working in templates -

i have problem getting variables work in templates. variables work in playbook in templates, rendered 'as is' without getting replaced values. here simple test-playbook.yml trying.

--- - name: test playbook vars   hosts: webservers   vars:     hello_var: hello world     hello_file_path: /tmp/hello_file.txt   tasks:     - name: copy hello world file       copy: src=templates/hello_world.txt.j2 dest={{ hello_file_path }} 

in templates/hello_world.txt.j2, have following contents

hi  {{ hello_var }} 

after running playbook, have on host @ /tmp/hello_world.txt same content in template

hi  {{ hello_var }} 

the variable hello_file_path used in playbook works variable hello_var used in template not working.

inside task using copy module copies file without template processing. in order use template need use template module.

- name: copy hello world file   template: src=templates/hello_world.txt.j2 dest={{ hello_file_path }}