We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Several testinfra tests failing against 1.8.0-rc1 Focal production instances:
## Description
`./securedrop-admin verify` against a 1.8.0-rc1 instance results in 11 test failures (of which 2 are expected)

```
============================================================================================= short test summary info =============================================================================================
FAILED app/test_apparmor.py::test_apparmor_enforced[paramiko:/app-xenial] - AssertionError: assert 'xenial' in '   /usr/bin/man\n   /usr/lib/NetworkManager/nm-dhcp-client.action\n   /usr/lib/NetworkManager/nm...
FAILED app/test_apparmor.py::test_apparmor_enforced[paramiko:/app-focal] - AssertionError: assert 'focal' in '   /usr/bin/man\n   /usr/lib/NetworkManager/nm-dhcp-client.action\n   /usr/lib/NetworkManager/nm-d...
FAILED app-code/test_securedrop_rqrequeue.py::test_securedrop_rqrequeue_service[paramiko:/app] - assert '[Unit]\nDesc...user.target\n' == '[Unit]\nDesc...user.target\n'
FAILED app-code/test_securedrop_rqworker.py::test_securedrop_rqworker_service[paramiko:/app] - assert '[Unit]\nDesc...user.target\n' == '[Unit]\nDesc...user.target\n'
FAILED app-code/test_securedrop_shredder_configuration.py::test_securedrop_shredder_service[paramiko:/app] - assert '[Unit]\nDesc...user.target\n' == '[Unit]\nDesc...user.target\n'
FAILED app-code/test_securedrop_source_deleter_configuration.py::test_securedrop_source_deleter_service[paramiko:/app] - assert '[Unit]\nDesc...user.target\n' == '[Unit]\nDesc...user.target\n'
FAILED app-code/test_securedrop_app_code.py::test_securedrop_application_apt_dependencies[paramiko:/app-libpython3.5] - AssertionError: assert False
(expected failure) FAILED common/test_fpf_apt_repo.py::test_fpf_apt_repo_present[paramiko:/app] - AssertionError: Unexpected exit code 2 for CommandResult(command=b"grep -qs -- '^deb \\[arch=amd64\\] https://apt\\.freedom\\.pre...
(expected failure) FAILED common/test_fpf_apt_repo.py::test_fpf_apt_repo_present[paramiko:/mon] - AssertionError: Unexpected exit code 2 for CommandResult(command=b"grep -qs -- '^deb \\[arch=amd64\\] https://apt\\.freedom\\.pre...
FAILED common/test_grsecurity.py::test_paxctld_focal[paramiko:/mon] - RuntimeError: Ansible module is only available with ansible connection backend
FAILED common/test_grsecurity.py::test_paxctld_focal[paramiko:/app] - RuntimeError: Ansible module is only available with ansible connection backend
============================================================= 11 failed, 441 passed, 7 skipped, 3 xfailed, 1 xpassed, 8 warnings in 842.46s (0:14:02) =============================================================
```


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `molecule/testinfra/conftest.py`
Content:
```
1 """
2 Configuration for TestInfra test suite for SecureDrop.
3 Handles importing host-specific test vars, so test functions
4 can be reused across multiple hosts, with varied targets.
5 
6 Vars should be placed in `testinfra/vars/<hostname>.yml`.
7 """
8 
9 import io
10 import os
11 import yaml
12 from typing import Any, Dict
13 
14 import testutils
15 
16 
17 # The config tests target staging by default. It's possible to override
18 # for e.g. prod, but the associated vars files are not yet ported.
19 target_host = os.environ.get('SECUREDROP_TESTINFRA_TARGET_HOST', 'staging')
20 
21 
22 def securedrop_import_testinfra_vars(hostname, with_header=False):
23     """
24     Import vars from a YAML file to populate tests with host-specific
25     values used in checks. For instance, the SecureDrop docroot will
26     be under /vagrant in development, but /var/www/securedrop in staging.
27 
28     Vars must be stored in `testinfra/vars/<hostname>.yml`.
29     """
30     filepath = os.path.join(os.path.dirname(__file__), "vars", hostname+".yml")
31     with io.open(filepath, 'r') as f:
32         hostvars = yaml.safe_load(f)
33 
34     # Testing against both Focal and Xenial must be supported for now in both
35     # staging scenarios, and in prod via `USE_FOCAL=1 ./securedrop-admin verify`
36     testing_focal = False
37     scenario_env = "MOLECULE_SCENARIO_NAME"
38     if scenario_env in os.environ and os.environ.get(scenario_env).endswith("focal"):
39         testing_focal = True
40     if "USE_FOCAL" in os.environ:
41         testing_focal = True
42 
43     if testing_focal:
44         hostvars['securedrop_venv_site_packages'] = hostvars["securedrop_venv_site_packages"].format("3.8")  # noqa: E501
45         hostvars['python_version'] = "3.8"
46     else:
47         hostvars['securedrop_venv_site_packages'] = hostvars["securedrop_venv_site_packages"].format("3.5")  # noqa: E501
48         hostvars['python_version'] = "3.5"
49 
50     if with_header:
51         hostvars = dict(securedrop_test_vars=hostvars)
52 
53     return hostvars
54 
55 
56 class TestVars(dict):
57     managed_attrs = {}  # type: Dict[str, Any]
58 
59     def __init__(self, initial: Dict[str, Any]) -> None:
60         self.securedrop_target_distribution = os.environ.get("SECUREDROP_TARGET_DISTRIBUTION")
61         self.managed_attrs.update(initial)
62 
63     def __getattr__(self, name: str) -> Any:
64         """
65         If the requested attribute names a dict in managed_attrs and that
66         contains a key with the name of the target distribution,
67         e.g. "focal", return that. Otherwise return the entire item
68         under the requested name.
69         """
70         try:
71             attr = self.managed_attrs[name]
72             if isinstance(attr, dict) and self.securedrop_target_distribution in attr:
73                 return attr[self.securedrop_target_distribution]
74             return attr
75         except KeyError:
76             raise AttributeError(name)
77 
78     def __str__(self) -> str:
79         return str(self.managed_attrs)
80 
81 
82 testutils.securedrop_test_vars = TestVars(securedrop_import_testinfra_vars(target_host))
83
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/molecule/testinfra/conftest.py b/molecule/testinfra/conftest.py
--- a/molecule/testinfra/conftest.py
+++ b/molecule/testinfra/conftest.py
@@ -43,9 +43,11 @@
     if testing_focal:
         hostvars['securedrop_venv_site_packages'] = hostvars["securedrop_venv_site_packages"].format("3.8")  # noqa: E501
         hostvars['python_version'] = "3.8"
+        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['focal']
     else:
         hostvars['securedrop_venv_site_packages'] = hostvars["securedrop_venv_site_packages"].format("3.5")  # noqa: E501
         hostvars['python_version'] = "3.5"
+        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['xenial']
 
     if with_header:
         hostvars = dict(securedrop_test_vars=hostvars)

{"golden_diff": "diff --git a/molecule/testinfra/conftest.py b/molecule/testinfra/conftest.py\n--- a/molecule/testinfra/conftest.py\n+++ b/molecule/testinfra/conftest.py\n@@ -43,9 +43,11 @@\n     if testing_focal:\n         hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.8\")  # noqa: E501\n         hostvars['python_version'] = \"3.8\"\n+        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['focal']\n     else:\n         hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.5\")  # noqa: E501\n         hostvars['python_version'] = \"3.5\"\n+        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['xenial']\n \n     if with_header:\n         hostvars = dict(securedrop_test_vars=hostvars)\n", "issue": "Several testinfra tests failing against 1.8.0-rc1 Focal production instances:\n## Description\r\n`./securedrop-admin verify` against a 1.8.0-rc1 instance results in 11 test failures (of which 2 are expected)\r\n\r\n```\r\n============================================================================================= short test summary info =============================================================================================\r\nFAILED app/test_apparmor.py::test_apparmor_enforced[paramiko:/app-xenial] - AssertionError: assert 'xenial' in '   /usr/bin/man\\n   /usr/lib/NetworkManager/nm-dhcp-client.action\\n   /usr/lib/NetworkManager/nm...\r\nFAILED app/test_apparmor.py::test_apparmor_enforced[paramiko:/app-focal] - AssertionError: assert 'focal' in '   /usr/bin/man\\n   /usr/lib/NetworkManager/nm-dhcp-client.action\\n   /usr/lib/NetworkManager/nm-d...\r\nFAILED app-code/test_securedrop_rqrequeue.py::test_securedrop_rqrequeue_service[paramiko:/app] - assert '[Unit]\\nDesc...user.target\\n' == '[Unit]\\nDesc...user.target\\n'\r\nFAILED app-code/test_securedrop_rqworker.py::test_securedrop_rqworker_service[paramiko:/app] - assert '[Unit]\\nDesc...user.target\\n' == '[Unit]\\nDesc...user.target\\n'\r\nFAILED app-code/test_securedrop_shredder_configuration.py::test_securedrop_shredder_service[paramiko:/app] - assert '[Unit]\\nDesc...user.target\\n' == '[Unit]\\nDesc...user.target\\n'\r\nFAILED app-code/test_securedrop_source_deleter_configuration.py::test_securedrop_source_deleter_service[paramiko:/app] - assert '[Unit]\\nDesc...user.target\\n' == '[Unit]\\nDesc...user.target\\n'\r\nFAILED app-code/test_securedrop_app_code.py::test_securedrop_application_apt_dependencies[paramiko:/app-libpython3.5] - AssertionError: assert False\r\n(expected failure) FAILED common/test_fpf_apt_repo.py::test_fpf_apt_repo_present[paramiko:/app] - AssertionError: Unexpected exit code 2 for CommandResult(command=b\"grep -qs -- '^deb \\\\[arch=amd64\\\\] https://apt\\\\.freedom\\\\.pre...\r\n(expected failure) FAILED common/test_fpf_apt_repo.py::test_fpf_apt_repo_present[paramiko:/mon] - AssertionError: Unexpected exit code 2 for CommandResult(command=b\"grep -qs -- '^deb \\\\[arch=amd64\\\\] https://apt\\\\.freedom\\\\.pre...\r\nFAILED common/test_grsecurity.py::test_paxctld_focal[paramiko:/mon] - RuntimeError: Ansible module is only available with ansible connection backend\r\nFAILED common/test_grsecurity.py::test_paxctld_focal[paramiko:/app] - RuntimeError: Ansible module is only available with ansible connection backend\r\n============================================================= 11 failed, 441 passed, 7 skipped, 3 xfailed, 1 xpassed, 8 warnings in 842.46s (0:14:02) =============================================================\r\n```\r\n\n", "before_files": [{"content": "\"\"\"\nConfiguration for TestInfra test suite for SecureDrop.\nHandles importing host-specific test vars, so test functions\ncan be reused across multiple hosts, with varied targets.\n\nVars should be placed in `testinfra/vars/<hostname>.yml`.\n\"\"\"\n\nimport io\nimport os\nimport yaml\nfrom typing import Any, Dict\n\nimport testutils\n\n\n# The config tests target staging by default. It's possible to override\n# for e.g. prod, but the associated vars files are not yet ported.\ntarget_host = os.environ.get('SECUREDROP_TESTINFRA_TARGET_HOST', 'staging')\n\n\ndef securedrop_import_testinfra_vars(hostname, with_header=False):\n    \"\"\"\n    Import vars from a YAML file to populate tests with host-specific\n    values used in checks. For instance, the SecureDrop docroot will\n    be under /vagrant in development, but /var/www/securedrop in staging.\n\n    Vars must be stored in `testinfra/vars/<hostname>.yml`.\n    \"\"\"\n    filepath = os.path.join(os.path.dirname(__file__), \"vars\", hostname+\".yml\")\n    with io.open(filepath, 'r') as f:\n        hostvars = yaml.safe_load(f)\n\n    # Testing against both Focal and Xenial must be supported for now in both\n    # staging scenarios, and in prod via `USE_FOCAL=1 ./securedrop-admin verify`\n    testing_focal = False\n    scenario_env = \"MOLECULE_SCENARIO_NAME\"\n    if scenario_env in os.environ and os.environ.get(scenario_env).endswith(\"focal\"):\n        testing_focal = True\n    if \"USE_FOCAL\" in os.environ:\n        testing_focal = True\n\n    if testing_focal:\n        hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.8\")  # noqa: E501\n        hostvars['python_version'] = \"3.8\"\n    else:\n        hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.5\")  # noqa: E501\n        hostvars['python_version'] = \"3.5\"\n\n    if with_header:\n        hostvars = dict(securedrop_test_vars=hostvars)\n\n    return hostvars\n\n\nclass TestVars(dict):\n    managed_attrs = {}  # type: Dict[str, Any]\n\n    def __init__(self, initial: Dict[str, Any]) -> None:\n        self.securedrop_target_distribution = os.environ.get(\"SECUREDROP_TARGET_DISTRIBUTION\")\n        self.managed_attrs.update(initial)\n\n    def __getattr__(self, name: str) -> Any:\n        \"\"\"\n        If the requested attribute names a dict in managed_attrs and that\n        contains a key with the name of the target distribution,\n        e.g. \"focal\", return that. Otherwise return the entire item\n        under the requested name.\n        \"\"\"\n        try:\n            attr = self.managed_attrs[name]\n            if isinstance(attr, dict) and self.securedrop_target_distribution in attr:\n                return attr[self.securedrop_target_distribution]\n            return attr\n        except KeyError:\n            raise AttributeError(name)\n\n    def __str__(self) -> str:\n        return str(self.managed_attrs)\n\n\ntestutils.securedrop_test_vars = TestVars(securedrop_import_testinfra_vars(target_host))\n", "path": "molecule/testinfra/conftest.py"}], "after_files": [{"content": "\"\"\"\nConfiguration for TestInfra test suite for SecureDrop.\nHandles importing host-specific test vars, so test functions\ncan be reused across multiple hosts, with varied targets.\n\nVars should be placed in `testinfra/vars/<hostname>.yml`.\n\"\"\"\n\nimport io\nimport os\nimport yaml\nfrom typing import Any, Dict\n\nimport testutils\n\n\n# The config tests target staging by default. It's possible to override\n# for e.g. prod, but the associated vars files are not yet ported.\ntarget_host = os.environ.get('SECUREDROP_TESTINFRA_TARGET_HOST', 'staging')\n\n\ndef securedrop_import_testinfra_vars(hostname, with_header=False):\n    \"\"\"\n    Import vars from a YAML file to populate tests with host-specific\n    values used in checks. For instance, the SecureDrop docroot will\n    be under /vagrant in development, but /var/www/securedrop in staging.\n\n    Vars must be stored in `testinfra/vars/<hostname>.yml`.\n    \"\"\"\n    filepath = os.path.join(os.path.dirname(__file__), \"vars\", hostname+\".yml\")\n    with io.open(filepath, 'r') as f:\n        hostvars = yaml.safe_load(f)\n\n    # Testing against both Focal and Xenial must be supported for now in both\n    # staging scenarios, and in prod via `USE_FOCAL=1 ./securedrop-admin verify`\n    testing_focal = False\n    scenario_env = \"MOLECULE_SCENARIO_NAME\"\n    if scenario_env in os.environ and os.environ.get(scenario_env).endswith(\"focal\"):\n        testing_focal = True\n    if \"USE_FOCAL\" in os.environ:\n        testing_focal = True\n\n    if testing_focal:\n        hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.8\")  # noqa: E501\n        hostvars['python_version'] = \"3.8\"\n        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['focal']\n    else:\n        hostvars['securedrop_venv_site_packages'] = hostvars[\"securedrop_venv_site_packages\"].format(\"3.5\")  # noqa: E501\n        hostvars['python_version'] = \"3.5\"\n        hostvars['apparmor_enforce_actual'] = hostvars['apparmor_enforce']['xenial']\n\n    if with_header:\n        hostvars = dict(securedrop_test_vars=hostvars)\n\n    return hostvars\n\n\nclass TestVars(dict):\n    managed_attrs = {}  # type: Dict[str, Any]\n\n    def __init__(self, initial: Dict[str, Any]) -> None:\n        self.securedrop_target_distribution = os.environ.get(\"SECUREDROP_TARGET_DISTRIBUTION\")\n        self.managed_attrs.update(initial)\n\n    def __getattr__(self, name: str) -> Any:\n        \"\"\"\n        If the requested attribute names a dict in managed_attrs and that\n        contains a key with the name of the target distribution,\n        e.g. \"focal\", return that. Otherwise return the entire item\n        under the requested name.\n        \"\"\"\n        try:\n            attr = self.managed_attrs[name]\n            if isinstance(attr, dict) and self.securedrop_target_distribution in attr:\n                return attr[self.securedrop_target_distribution]\n            return attr\n        except KeyError:\n            raise AttributeError(name)\n\n    def __str__(self) -> str:\n        return str(self.managed_attrs)\n\n\ntestutils.securedrop_test_vars = TestVars(securedrop_import_testinfra_vars(target_host))\n", "path": "molecule/testinfra/conftest.py"}]}