instackenv_calculations.yml

---
- name: test the instackenv logic
  hosts: localhost
  vars:
    num_controllers: 3
    num_storage: 5
  vars_prompt:
    - name: "instack_url"
      prompt: "What is th instackenv url?"
      private: false
  tasks:
    - name: Get the instackenv file
      uri:
        url: "{{ instack_url }}"
      register: instack_data

    - name: Count the nodes
      set_fact:
        total_nodes: "{{ instack_data['json']['nodes'] | length }}"

    - name: Calculate the num_compute
      debug:
        msg: "num_compute: {{ total_nodes | int - num_controllers | int - num_storage | int }}"