We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Certbot's Apache plugin doesn't work on Scientific Linux
See https://community.letsencrypt.org/t/noinstallationerror-cannot-find-apache-executable-apache2ctl/97980.

This should be fixable by adding an override in https://github.com/certbot/certbot/blob/master/certbot-apache/certbot_apache/entrypoint.py#L17.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `certbot-apache/certbot_apache/entrypoint.py`
Content:
```
1 """ Entry point for Apache Plugin """
2 # Pylint does not like disutils.version when running inside a venv.
3 # See: https://github.com/PyCQA/pylint/issues/73
4 from distutils.version import LooseVersion  # pylint: disable=no-name-in-module,import-error
5 
6 from certbot import util
7 
8 from certbot_apache import configurator
9 from certbot_apache import override_arch
10 from certbot_apache import override_fedora
11 from certbot_apache import override_darwin
12 from certbot_apache import override_debian
13 from certbot_apache import override_centos
14 from certbot_apache import override_gentoo
15 from certbot_apache import override_suse
16 
17 OVERRIDE_CLASSES = {
18     "arch": override_arch.ArchConfigurator,
19     "darwin": override_darwin.DarwinConfigurator,
20     "debian": override_debian.DebianConfigurator,
21     "ubuntu": override_debian.DebianConfigurator,
22     "centos": override_centos.CentOSConfigurator,
23     "centos linux": override_centos.CentOSConfigurator,
24     "fedora_old": override_centos.CentOSConfigurator,
25     "fedora": override_fedora.FedoraConfigurator,
26     "ol": override_centos.CentOSConfigurator,
27     "red hat enterprise linux server": override_centos.CentOSConfigurator,
28     "rhel": override_centos.CentOSConfigurator,
29     "amazon": override_centos.CentOSConfigurator,
30     "gentoo": override_gentoo.GentooConfigurator,
31     "gentoo base system": override_gentoo.GentooConfigurator,
32     "opensuse": override_suse.OpenSUSEConfigurator,
33     "suse": override_suse.OpenSUSEConfigurator,
34 }
35 
36 
37 def get_configurator():
38     """ Get correct configurator class based on the OS fingerprint """
39     os_name, os_version = util.get_os_info()
40     os_name = os_name.lower()
41     override_class = None
42 
43     # Special case for older Fedora versions
44     if os_name == 'fedora' and LooseVersion(os_version) < LooseVersion('29'):
45         os_name = 'fedora_old'
46 
47     try:
48         override_class = OVERRIDE_CLASSES[os_name]
49     except KeyError:
50         # OS not found in the list
51         os_like = util.get_systemd_os_like()
52         if os_like:
53             for os_name in os_like:
54                 if os_name in OVERRIDE_CLASSES.keys():
55                     override_class = OVERRIDE_CLASSES[os_name]
56         if not override_class:
57             # No override class found, return the generic configurator
58             override_class = configurator.ApacheConfigurator
59     return override_class
60 
61 
62 ENTRYPOINT = get_configurator()
63
```
--- 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/certbot-apache/certbot_apache/entrypoint.py b/certbot-apache/certbot_apache/entrypoint.py
--- a/certbot-apache/certbot_apache/entrypoint.py
+++ b/certbot-apache/certbot_apache/entrypoint.py
@@ -31,6 +31,8 @@
     "gentoo base system": override_gentoo.GentooConfigurator,
     "opensuse": override_suse.OpenSUSEConfigurator,
     "suse": override_suse.OpenSUSEConfigurator,
+    "scientific": override_centos.CentOSConfigurator,
+    "scientific linux": override_centos.CentOSConfigurator,
 }

{"golden_diff": "diff --git a/certbot-apache/certbot_apache/entrypoint.py b/certbot-apache/certbot_apache/entrypoint.py\n--- a/certbot-apache/certbot_apache/entrypoint.py\n+++ b/certbot-apache/certbot_apache/entrypoint.py\n@@ -31,6 +31,8 @@\n     \"gentoo base system\": override_gentoo.GentooConfigurator,\n     \"opensuse\": override_suse.OpenSUSEConfigurator,\n     \"suse\": override_suse.OpenSUSEConfigurator,\n+    \"scientific\": override_centos.CentOSConfigurator,\n+    \"scientific linux\": override_centos.CentOSConfigurator,\n }\n", "issue": "Certbot's Apache plugin doesn't work on Scientific Linux\nSee https://community.letsencrypt.org/t/noinstallationerror-cannot-find-apache-executable-apache2ctl/97980.\r\n\r\nThis should be fixable by adding an override in https://github.com/certbot/certbot/blob/master/certbot-apache/certbot_apache/entrypoint.py#L17.\n", "before_files": [{"content": "\"\"\" Entry point for Apache Plugin \"\"\"\n# Pylint does not like disutils.version when running inside a venv.\n# See: https://github.com/PyCQA/pylint/issues/73\nfrom distutils.version import LooseVersion  # pylint: disable=no-name-in-module,import-error\n\nfrom certbot import util\n\nfrom certbot_apache import configurator\nfrom certbot_apache import override_arch\nfrom certbot_apache import override_fedora\nfrom certbot_apache import override_darwin\nfrom certbot_apache import override_debian\nfrom certbot_apache import override_centos\nfrom certbot_apache import override_gentoo\nfrom certbot_apache import override_suse\n\nOVERRIDE_CLASSES = {\n    \"arch\": override_arch.ArchConfigurator,\n    \"darwin\": override_darwin.DarwinConfigurator,\n    \"debian\": override_debian.DebianConfigurator,\n    \"ubuntu\": override_debian.DebianConfigurator,\n    \"centos\": override_centos.CentOSConfigurator,\n    \"centos linux\": override_centos.CentOSConfigurator,\n    \"fedora_old\": override_centos.CentOSConfigurator,\n    \"fedora\": override_fedora.FedoraConfigurator,\n    \"ol\": override_centos.CentOSConfigurator,\n    \"red hat enterprise linux server\": override_centos.CentOSConfigurator,\n    \"rhel\": override_centos.CentOSConfigurator,\n    \"amazon\": override_centos.CentOSConfigurator,\n    \"gentoo\": override_gentoo.GentooConfigurator,\n    \"gentoo base system\": override_gentoo.GentooConfigurator,\n    \"opensuse\": override_suse.OpenSUSEConfigurator,\n    \"suse\": override_suse.OpenSUSEConfigurator,\n}\n\n\ndef get_configurator():\n    \"\"\" Get correct configurator class based on the OS fingerprint \"\"\"\n    os_name, os_version = util.get_os_info()\n    os_name = os_name.lower()\n    override_class = None\n\n    # Special case for older Fedora versions\n    if os_name == 'fedora' and LooseVersion(os_version) < LooseVersion('29'):\n        os_name = 'fedora_old'\n\n    try:\n        override_class = OVERRIDE_CLASSES[os_name]\n    except KeyError:\n        # OS not found in the list\n        os_like = util.get_systemd_os_like()\n        if os_like:\n            for os_name in os_like:\n                if os_name in OVERRIDE_CLASSES.keys():\n                    override_class = OVERRIDE_CLASSES[os_name]\n        if not override_class:\n            # No override class found, return the generic configurator\n            override_class = configurator.ApacheConfigurator\n    return override_class\n\n\nENTRYPOINT = get_configurator()\n", "path": "certbot-apache/certbot_apache/entrypoint.py"}], "after_files": [{"content": "\"\"\" Entry point for Apache Plugin \"\"\"\n# Pylint does not like disutils.version when running inside a venv.\n# See: https://github.com/PyCQA/pylint/issues/73\nfrom distutils.version import LooseVersion  # pylint: disable=no-name-in-module,import-error\n\nfrom certbot import util\n\nfrom certbot_apache import configurator\nfrom certbot_apache import override_arch\nfrom certbot_apache import override_fedora\nfrom certbot_apache import override_darwin\nfrom certbot_apache import override_debian\nfrom certbot_apache import override_centos\nfrom certbot_apache import override_gentoo\nfrom certbot_apache import override_suse\n\nOVERRIDE_CLASSES = {\n    \"arch\": override_arch.ArchConfigurator,\n    \"darwin\": override_darwin.DarwinConfigurator,\n    \"debian\": override_debian.DebianConfigurator,\n    \"ubuntu\": override_debian.DebianConfigurator,\n    \"centos\": override_centos.CentOSConfigurator,\n    \"centos linux\": override_centos.CentOSConfigurator,\n    \"fedora_old\": override_centos.CentOSConfigurator,\n    \"fedora\": override_fedora.FedoraConfigurator,\n    \"ol\": override_centos.CentOSConfigurator,\n    \"red hat enterprise linux server\": override_centos.CentOSConfigurator,\n    \"rhel\": override_centos.CentOSConfigurator,\n    \"amazon\": override_centos.CentOSConfigurator,\n    \"gentoo\": override_gentoo.GentooConfigurator,\n    \"gentoo base system\": override_gentoo.GentooConfigurator,\n    \"opensuse\": override_suse.OpenSUSEConfigurator,\n    \"suse\": override_suse.OpenSUSEConfigurator,\n    \"scientific\": override_centos.CentOSConfigurator,\n    \"scientific linux\": override_centos.CentOSConfigurator,\n}\n\n\ndef get_configurator():\n    \"\"\" Get correct configurator class based on the OS fingerprint \"\"\"\n    os_name, os_version = util.get_os_info()\n    os_name = os_name.lower()\n    override_class = None\n\n    # Special case for older Fedora versions\n    if os_name == 'fedora' and LooseVersion(os_version) < LooseVersion('29'):\n        os_name = 'fedora_old'\n\n    try:\n        override_class = OVERRIDE_CLASSES[os_name]\n    except KeyError:\n        # OS not found in the list\n        os_like = util.get_systemd_os_like()\n        if os_like:\n            for os_name in os_like:\n                if os_name in OVERRIDE_CLASSES.keys():\n                    override_class = OVERRIDE_CLASSES[os_name]\n        if not override_class:\n            # No override class found, return the generic configurator\n            override_class = configurator.ApacheConfigurator\n    return override_class\n\n\nENTRYPOINT = get_configurator()\n", "path": "certbot-apache/certbot_apache/entrypoint.py"}]}