Add support for pdb mode for testinfra

• Feature request

Molecule and Ansible details

ansible 2.9.11
  config file = /home/amarao/git/nwaas/ansible.cfg
  configured module search path = ['/home/amarao/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/amarao/venvs/ansible29/lib/python3.8/site-packages/ansible
  executable location = /home/amarao/venvs/ansible29/bin/ansible
  python version = 3.8.6 (default, Sep 25 2020, 09:36:53) [GCC 10.2.0]
molecule 3.2.0a0
    ansible:2.9.11 python:3.8
    delegated:3.2.0a0 from molecule
    libvirt:0.0.3 from molecule_libvirt
    openstack:0.1 from molecule_openstack

installation method: pip

Desired Behavior

Right now molecule does not provide a tty to testinfra, so pytest --pdb can not interact with user. This mode can be enabled by this sinppet of molecule config:

verifier:
  name: testinfra
  options:
    pdb: true

It would be nice to have some kind of ‘interactive’ command line option for molecule to allow operators to have pdb shell in the test. This option should:

1. Add --pdb option to testinfra
2. Allow interactive shell for testinfra invocation.

[amarao]

@aryn-lacy, had I missed something? How to invoke pdb for testinfra in molecule?

[aryn-lacy]

This is already a thing and works exactly as described above. Should this issue be closed?