apt-get does not work on molecule ran via GitHub actions

[aorfanos]

Same as #2116

Issue Type

• Bug report

Molecule and Ansible details

Run ansible --version && molecule --version
ansible 2.10.2
  config file = /home/runner/work/ansible/ansible/ansible.cfg
  configured module search path = ['/home/runner/work/ansible/ansible/plugins/modules']
  ansible python module location = /opt/hostedtoolcache/Python/3.8.1/x64/lib/python3.8/site-packages/ansible
  executable location = /opt/hostedtoolcache/Python/3.8.1/x64/bin/ansible
  python version = 3.8.1 (default, Jun  9 2020, 20:20:25) [GCC 7.5.0]
molecule 3.1.2
   ansible==2.10.2 python==3.8

Molecule installation method (one of):

• pip

Ansible installation method (one of):

• pip

Desired Behavior

Task should work:

- name: Fetch python3-apt package
  ansible.builtin.apt:
    name: python3-apt
    state: present
  update_cache: yes

Should be noted that I already install python3-apt in a previous action (where molecule, ansible and other dependencies are installed - this step executes successfully):

      - name: Install dependencies
        run: apt-get update && apt-get install python3-apt && pip3 install molecule docker yamllint ansible-lint

Also, my molecule.yml looks like this:

---
dependency:
  name: galaxy
driver:
  name: delegated
  options:
    managed: false
    ansible_connection_options:
      ansible_connection: local
platforms:
  - name: "apache2"
provisioner:
  name: ansible
  playbooks:
    prepare: prepare.yml
    converge: converge.yml
verifier:
  name: ansible

, and here's the whole CI job: https://pastebin.com/gVBrmBDp

Actual Behaviour

    TASK [Install python3-apt] *****************************************************
Warning: 35m[WARNING]: Updating cache and auto-installing missing dependency: python3-apt
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Could not import python modules: apt, apt_pkg. Please install python3-apt package."}

[greg-hellings]

This has nothing to do with Molecule. It's a requirement of the Ansible apt module to have the Python bindings installed on the target system. If you're installing Molecule with pip but Python apt bindings with apt get, you're probably using a different Python interpreter than you think.

Be sure the value of anible_python_interpreter points to the system one and not the virtual env where you've installed molecule with pip