ansible_ipa_replica: Fix ansible-test fake execution test findings

All imports that are only available after installing IPA need to be in a
try exception clause to be able to pass the fake execution test. The old
workaround "if 'ansible.executor' in sys.modules:" is not working with
this test anymore.

If the imports can not be done, all used and needed attributes are
defines with the value None.

The new function check_imports has been added to fail with module.fail_json
if an import exception occured and ANSIBLE_IPA_REPLICA_MODULE_IMPORT_ERROR is
not None. This function needs to be called in all modules.

The `copyright` date is extended with `-2022`.

roles/ipareplica/module_utils/ansible_ipa_replica.py

@@ -5,7 +5,7 @@
 #
 # Based on ipa-replica-install code
 #
-# Copyright (C) 2018  Red Hat
+# Copyright (C) 2018-2022  Red Hat
 # see file 'COPYING' for use and warranty information
 #
 # This program is free software; you can redistribute it and/or modify
@@ -47,18 +47,12 @@ __all__ = ["contextlib", "dnsexception", "dnsresolver", "dnsreversename",
            "check_domain_level_is_supported", "promotion_check_ipa_domain",
            "SSSDConfig", "CalledProcessError", "timeconf", "ntpinstance",
            "dnsname", "kernel_keyring", "krbinstance", "getargspec",
-           "adtrustinstance"]
+           "adtrustinstance", "paths", "api", "dsinstance", "ipaldap", "Env",
+           "ipautil", "installutils", "IPA_PYTHON_VERSION", "NUM_VERSION",
+           "ReplicaConfig", "create_api"]
 
 import sys
-
-# HACK: workaround for Ansible 2.9
-# https://github.com/ansible/ansible/issues/68361
-if 'ansible.executor' in sys.modules:
-    for attr in __all__:
-        setattr(sys.modules[__name__], attr, None)
-else:
 import logging
-    from contextlib import contextmanager as contextlib_contextmanager
 
 # Import getargspec from inspect or provide own getargspec for
 # Python 2 compatibility with Python 3.11+.
@@ -82,6 +76,9 @@ else:
                 ", use inspect.signature() API which can support them")
         return ArgSpec(args, varargs, varkw, defaults)
 
+
+try:
+    from contextlib import contextmanager as contextlib_contextmanager
     from ipapython.version import NUM_VERSION, VERSION
 
     if NUM_VERSION < 30201:
@@ -177,14 +174,26 @@ else:
 
         raise Exception("freeipa version '%s' is too old" % VERSION)
 
+except ImportError as _err:
+    ANSIBLE_IPA_REPLICA_MODULE_IMPORT_ERROR = str(_err)
+
+    for attr in __all__:
+        setattr(sys.modules[__name__], attr, None)
+
+else:
+    ANSIBLE_IPA_REPLICA_MODULE_IMPORT_ERROR = None
+
+
 logger = logging.getLogger("ipa-server-install")
 
+
 def setup_logging():
     # logger.setLevel(logging.DEBUG)
     standard_logging_setup(
         paths.IPAREPLICA_INSTALL_LOG, verbose=False, debug=False,
         filemode='a', console_format='%(message)s')
 
+
 @contextlib_contextmanager
 def redirect_stdout(stream):
     sys.stdout = stream
@@ -193,6 +202,7 @@ else:
     finally:
         sys.stdout = sys.__stdout__
 
+
 class AnsibleModuleLog():
     def __init__(self, module):
         self.module = module
@@ -230,6 +240,7 @@ else:
         self.module.debug(msg)
         # self.module.warn(msg)
 
+
 # pylint: disable=too-many-instance-attributes, useless-object-inheritance
 class installer_obj(object):  # pylint: disable=invalid-name
     def __init__(self):
@@ -287,8 +298,10 @@ else:
         for name in self.__dict__:
             yield self, name
 
+
 # pylint: enable=too-many-instance-attributes, useless-object-inheritance
 
+
 # pylint: disable=attribute-defined-outside-init
 installer = installer_obj()
 options = installer
@@ -308,6 +321,7 @@ else:
 options.ca_subject = None
 # pylint: enable=attribute-defined-outside-init
 
+
 def gen_env_boostrap_finalize_core(etc_ipa, default_config):
     env = Env()
     # env._bootstrap(context='installer', confdir=paths.ETC_IPA, log=None)
@@ -316,6 +330,7 @@ else:
     env._finalize_core(**dict(default_config))
     return env
 
+
 def api_bootstrap_finalize(env):
     # pylint: disable=no-member
     xmlrpc_uri = \
@@ -328,6 +343,7 @@ else:
     # pylint: enable=no-member
     api.finalize()
 
+
 def gen_ReplicaConfig():  # pylint: disable=invalid-name
     # pylint: disable=too-many-instance-attributes
     class ExtendedReplicaConfig(ReplicaConfig):
@@ -381,6 +397,7 @@ else:
 
     return config
 
+
 def replica_ds_init_info(ansible_log,
                          config, options_, ca_is_configured, remote_api,
                          ds_ca_subject, ca_file,
@@ -446,6 +463,7 @@ else:
 
     return ds
 
+
 def ansible_module_get_parsed_ip_addresses(ansible_module,
                                            param='ip_addresses'):
     ip_addrs = []
@@ -458,6 +476,7 @@ else:
         ip_addrs.append(ip_parsed)
     return ip_addrs
 
+
 def gen_remote_api(master_host_name, etc_ipa):
     ldapuri = 'ldaps://%s' % ipautil.format_netloc(master_host_name)
     xmlrpc_uri = 'https://{}/ipa/xml'.format(
@@ -470,3 +489,8 @@ else:
                          xmlrpc_uri=xmlrpc_uri)
     remote_api.finalize()
     return remote_api
+
+
+def check_imports(module):
+    if ANSIBLE_IPA_REPLICA_MODULE_IMPORT_ERROR is not None:
+        module.fail_json(msg=ANSIBLE_IPA_REPLICA_MODULE_IMPORT_ERROR)