Skip the ACME mod_md test when the client is in enforcing mode

mod_md requires its own SELinux policy which is only available
in the upstream github. It is beyond the scope of this test to
maintain SELinux policy only for the scenario so skip it
if the client is in enforcing.

Note that no check needs to be done on OS because that is
already handled by the outer skipif for skip_mod_md_tests.

https://pagure.io/freeipa/issue/8514

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipatests/test_integration/test_acme.py

@@ -50,6 +50,23 @@ def check_acme_status(host, exp_status, timeout=60):
     return status
 
 
+def get_selinux_status(host):
+    """
+    Return the SELinux enforcing status.
+
+    Return True if enabled and enforcing, otherwise False
+    """
+    result = host.run_command(['/usr/sbin/selinuxenabled'], raiseonerr=False)
+    if result.returncode != 0:
+        return False
+
+    result = host.run_command(['/usr/sbin/getenforce'], raiseonerr=False)
+    if 'Enforcing' in result.stdout_text:
+        return True
+
+    return False
+
+
 def server_install_teardown(func):
     def wrapped(*args):
         master = args[0].master
@@ -290,6 +307,10 @@ class TestACME(CALessBase):
 
     @pytest.mark.skipif(skip_mod_md_tests, reason='mod_md not available')
     def test_mod_md(self):
+        if get_selinux_status(self.clients[0]):
+            # mod_md requires its own SELinux policy to grant perms to
+            # maintaining ACME registration and cert state.
+            raise pytest.skip("SELinux is enabled, this will fail")
         # write config
         self.clients[0].run_command(['mkdir', '-p', '/etc/httpd/conf.d'])
         self.clients[0].run_command(['mkdir', '-p', '/etc/httpd/md'])