Debugging Ansible - simple test with parts from https://galaxy.ansible.com/cloudalchemy/node_exporter

test-playbook.yml

- name: Manage node_exporter on servers
  hosts: localhost

  vars:
    node_exporter_version: 1.3.1
    go_arch: amd64
    node_exporter_local_tmp_directory: "{{ ansible_env.HOME }}/.cache/ansible/node_exporter/{{ node_exporter_version }}"

  tasks:

    - name: Ensure local cache directory
      file:
        path: '{{ node_exporter_local_tmp_directory }}'
        state: directory
      delegate_to: localhost
      check_mode: false

    - name: Download node_exporter binary to local folder
      become: false
      get_url:
        url: "https://github.com/prometheus/node_exporter/releases/download/v{{ node_exporter_version }}/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}.tar.gz"
        dest: "{{ node_exporter_local_tmp_directory }}/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}.tar.gz"
        mode: '0644'
      register: _download_binary
      delegate_to: localhost
      check_mode: false

    - name: Unpack node_exporter binary
      become: false
      unarchive:
        src: "{{ node_exporter_local_tmp_directory }}/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}.tar.gz"
        dest: "{{ node_exporter_local_tmp_directory }}"
      delegate_to: localhost
      check_mode: false

version.txt

ansible [core 2.12.2]
  config file = /home/markus/git/lazyfrosch/ansible/site/ansible.cfg
  configured module search path = ['/home/markus/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/markus/.virtualenvs/ansible/lib/python3.9/site-packages/ansible
  ansible collection location = /home/markus/.ansible/collections:/usr/share/ansible/collections
  executable location = /home/markus/.virtualenvs/ansible/bin/ansible
  python version = 3.9.10 (main, Jan 16 2022, 17:12:18) [GCC 11.2.0]
  jinja version = 3.0.3
  libyaml = True