Replace wsgi package conflict with config file

Instead of a package conflict, freeIPA now uses an Apache config file to
enforce the correct wsgi module. The workaround only applies to Fedora
since it is the only platform that permits parallel installation of
Python 2 and Python 3 mod_wsgi modules. RHEL 7 has only Python 2 and
Debian doesn't permit installation of both variants.

See: https://pagure.io/freeipa/issue/7161
Fixes: https://pagure.io/freeipa/issue/7394
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipaplatform/redhat/tasks.py

@@ -30,6 +30,7 @@ import os
 import socket
 import traceback
 import errno
+import sys
 
 from ctypes.util import find_library
 from functools import total_ordering
@@ -484,6 +485,36 @@ class RedHatTaskNamespace(BaseTaskNamespace):
         os.chmod(paths.GSSPROXY_CONF, 0o600)
         self.restore_context(paths.GSSPROXY_CONF)
 
+    def configure_httpd_wsgi_conf(self):
+        """Configure WSGI for correct Python version (Fedora)
+
+        See https://pagure.io/freeipa/issue/7394
+        """
+        conf = paths.HTTPD_IPA_WSGI_MODULES_CONF
+        if sys.version_info.major == 2:
+            wsgi_module = constants.MOD_WSGI_PYTHON2
+        else:
+            wsgi_module = constants.MOD_WSGI_PYTHON3
+
+        if conf is None or wsgi_module is None:
+            logger.info("Nothing to do for configure_httpd_wsgi_conf")
+            return
+
+        confdir = os.path.dirname(conf)
+        if not os.path.isdir(confdir):
+            os.makedirs(confdir)
+
+        ipautil.copy_template_file(
+            os.path.join(
+                paths.USR_SHARE_IPA_DIR, 'ipa-httpd-wsgi.conf.template'
+            ),
+            conf,
+            dict(WSGI_MODULE=wsgi_module)
+        )
+
+        os.chmod(conf, 0o644)
+        self.restore_context(conf)
+
     def remove_httpd_service_ipa_conf(self):
         """Remove systemd config for httpd service of IPA"""
         try: