Volumes not removed from host system.

[pcarinhas]

Given docker compose file:

services:
  vault:
    image: vault
    container_name: vault
    env_file:
      - .env
    ports:
      - "8200:8200"
    restart: always
    volumes:
      - ./volumes/logs:/vault/logs
      - ./volumes/file:/vault/file
      - ./volumes/config:/vault/config
    cap_add:
      - IPC_LOCK
    entrypoint: vault server -config=/vault/config/vault.json```

And test environment: 

import hvac
import os
import pytest
from authcontext.auth import AuthContext, S3Auth

pytest_plugins = ["docker_compose"]

class TestAuthContext:
    @pytest.fixture(autouse=True, scope="class")
    def setup_class(self):
        print("\nTesting:", self.__class__.__name__)
        breakpoint()
        print(311)

    def test_setup_vault(self, class_scoped_container_getter):

        class_scoped_container_getter.get("vault").network_info[0]
        __import__("pdb").set_trace()  # FIXME
        client = hvac.Client(url="http://localhost:8200")
        shares = 5
        threshold = 3
        result = client.sys.initialize(shares, threshold)

        self.root_token = result["root_token"]
        self.keys = result["keys"]
        client.sys.is_initialized()```


Tests succeed first time but fail 2nd time due to lingering files on host system:

```pytest --docker-compose-remove-volumes .
=========================================================== test session starts ===========================================================
platform linux -- Python 3.9.6, pytest-6.2.4, py-1.10.0, pluggy-0.13.1
rootdir: /home/joe/z-auth-context
plugins: docker-0.10.3, docker-compose-3.2.1
collected 0 items / 1 error                                                                                                               

================================================================= ERRORS ==================================================================
______________________________________________________ ERROR collecting test session ______________________________________________________
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/runner.py:311: in from_call
    result: Optional[TResult] = func()
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/runner.py:341: in <lambda>
    call = CallInfo.from_call(lambda: list(collector.collect()), "collect")
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/main.py:690: in collect
    for direntry in visit(str(argpath), self._recurse):
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/pathlib.py:606: in visit
    yield from visit(entry.path, recurse)
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/pathlib.py:606: in visit
    yield from visit(entry.path, recurse)
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/pathlib.py:606: in visit
    yield from visit(entry.path, recurse)
../../.asdf/installs/python/3.9.6/lib/python3.9/site-packages/_pytest/pathlib.py:591: in visit
    for entry in os.scandir(path):
E   PermissionError: [Errno 13] Permission denied: '/home/joe/z-auth-context/tests/volumes/file/core'
========================================================= short test summary info =========================================================
ERROR .. - PermissionError: [Errno 13] Permission denied: '/home/joe/z-auth-context/tests/volumes/file/core'
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
============================================================ 1 error in 0.13s ==========```

[pcarinhas]

Vault config files tests]: cat volumes/config/vault.json

  "backend": {
    "file": {
      "path": "/vault/file"
    }
  },
  "listener": {
    "tcp":{
      "address": "0.0.0.0:8200",
      "tls_disable": 1
    }
  },
  "ui": true
}```