New global ansible_ipa_client utils module

With ansible 2.3.1 it is possible to have one place as an additional utils
module to do all the needed steps to be able to generate the environment for
new and older ipa versions.

The library modules are now a lot smaller.

The minimal ansible version has been increased to 2.3.1.

In the future it might now also be possible to have a special
ansible_ipa_client version for ipa < 4.4 in this utils module.

module_utils/ansible_ipa_client.py

@@ -0,0 +1,167 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Authors:
+#   Thomas Woerner <twoerner@redhat.com>
+#
+# Based on ipa-client-install code
+#
+# Copyright (C) 2017  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from ipapython.version import NUM_VERSION, VERSION
+
+if NUM_VERSION < 30201:
+    # See ipapython/version.py
+    IPA_MAJOR,IPA_MINOR,IPA_RELEASE = [ int(x) for x in VERSION.split(".", 2) ]
+    IPA_PYTHON_VERSION = IPA_MAJOR*10000 + IPA_MINOR*100 + IPA_RELEASE
+else:
+    IPA_PYTHON_VERSION = NUM_VERSION
+
+class options_obj(object):
+    pass
+options = options_obj()
+
+if NUM_VERSION >= 40400:
+    # IPA version >= 4.4
+
+    import sys
+    import inspect
+    import logging
+
+    try:
+        from ipaclient.install import ipadiscovery
+    except ImportError:
+        from ipaclient import ipadiscovery
+    from ipalib import api, errors, x509
+    try:
+        from ipalib.install import sysrestore
+    except ImportError:
+        from ipapython import sysrestore
+    try:
+        from ipalib.install import certmonger
+    except ImportError:
+        from ipapython import certmonger
+    try:
+        from ipalib.install import certstore
+    except ImportError:
+        from ipalib import certstore
+    from ipalib.rpc import delete_persistent_client_session_data
+    from ipapython import certdb, ipautil
+    from ipaplatform import services
+    from ipaplatform.paths import paths
+    from ipaplatform.tasks import tasks
+    if NUM_VERSION >= 40500 and NUM_VERSION < 40590:
+        from cryptography.hazmat.primitives import serialization
+    from ipapython.ipautil import CalledProcessError, write_tmp_file, \
+        ipa_generate_password, file_exists
+    from ipapython.dn import DN
+    try:
+        from ipalib.install.kinit import kinit_keytab, kinit_password
+    except ImportError:
+        from ipapython.ipautil import kinit_keytab, kinit_password
+    from ipapython.ipa_log_manager import standard_logging_setup
+    from gssapi.exceptions import GSSError
+    try:
+        from ipaclient.install.client import configure_krb5_conf, \
+            get_ca_certs, SECURE_PATH, get_server_connection_interface, \
+            configure_nsswitch_database, disable_ra, client_dns, \
+            configure_certmonger, update_ssh_keys, configure_openldap_conf, \
+            hardcode_ldap_server, get_certs_from_ldap, save_state, \
+            create_ipa_nssdb, configure_ssh_config, configure_sshd_config, \
+            configure_automount, configure_firefox, configure_nisdomain
+    except ImportError:
+        # Create temporary copy of ipa-client-install script (as
+        # ipa_client_install.py) to be able to import the script easily
+        # and also to remove the global finally clause in which the
+        # generated ccache file gets removed. The ccache file will be
+        # needed in the next step.
+        # This is done in a temporary directory that gets removed right
+        # after ipa_client_install has been imported.
+        import shutil, tempfile
+        temp_dir = tempfile.mkdtemp(dir="/tmp")
+        sys.path.append(temp_dir)
+        temp_file = "%s/ipa_client_install.py" % temp_dir
+
+        with open("/usr/sbin/ipa-client-install", "r") as f_in:
+            with open(temp_file, "w") as f_out:
+                for line in f_in:
+                    if line.startswith("finally:"):
+                        break
+                    f_out.write(line)
+        import ipa_client_install
+
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        sys.path.remove(temp_dir)
+
+        argspec = inspect.getargspec(ipa_client_install.configure_krb5_conf)
+        if argspec.keywords is None:
+            def configure_krb5_conf(
+                    cli_realm, cli_domain, cli_server, cli_kdc, dnsok,
+                    filename, client_domain, client_hostname, force=False,
+                    configure_sssd=True):
+                global options
+                options.force = force
+                options.sssd = configure_sssd
+                return ipa_client_install.configure_krb5_conf(
+                    cli_realm, cli_domain, cli_server, cli_kdc, dnsok, options,
+                    filename, client_domain, client_hostname)
+        else:
+            configure_krb5_conf = ipa_client_install.configure_krb5_conf
+        if NUM_VERSION < 40100:
+            get_ca_cert = ipa_client_install.get_ca_cert
+        else:
+            get_ca_certs = ipa_client_install.get_ca_certs
+        SECURE_PATH = ("/bin:/sbin:/usr/kerberos/bin:/usr/kerberos/sbin:/usr/bin:/usr/sbin")
+
+        get_server_connection_interface = ipa_client_install.get_server_connection_interface
+        configure_nsswitch_database = ipa_client_install.configure_nsswitch_database
+        disable_ra = ipa_client_install.disable_ra
+        client_dns = ipa_client_install.client_dns
+        configure_certmonger = ipa_client_install.configure_certmonger
+        update_ssh_keys = ipa_client_install.update_ssh_keys
+        configure_openldap_conf = ipa_client_install.configure_openldap_conf
+        hardcode_ldap_server = ipa_client_install.hardcode_ldap_server
+        get_certs_from_ldap = ipa_client_install.get_certs_from_ldap
+        save_state = ipa_client_install.save_state
+
+        create_ipa_nssdb = certdb.create_ipa_nssdb
+
+        argspec = inspect.getargspec(ipa_client_install.configure_nisdomain)
+        if len(argspec.args) == 3:
+            configure_nisdomain = ipa_client_install.configure_nisdomain
+        else:
+            def configure_nisdomain(options, domain, statestore=None):
+                return ipa_client_install.configure_nisdomain(options, domain)
+
+        configure_ssh_config = ipa_client_install.configure_ssh_config
+        configure_sshd_config = ipa_client_install.configure_sshd_config
+        configure_automount = ipa_client_install.configure_automount
+        configure_firefox = ipa_client_install.configure_firefox
+
+    from ipapython.ipautil import realm_to_suffix, run
+
+    try:
+        from ipaclient.install import ntpconf
+    except ImportError:
+        from ipaclient import ntpconf
+
+    logger = logging.getLogger("ipa-client-install")
+
+else:
+    # IPA version < 4.4
+
+    raise Exception("freeipa version '%s' is too old" % VERSION)