Debug unix connection case

Signed-off-by: lcheng <[email protected]>

virttest/utils_conn.py

@@ -11,6 +11,7 @@
 from aexpect import remote
 
 from avocado.core import exceptions
+from avocado.utils import distro
 from avocado.utils import path
 from avocado.utils import process
 
@@ -1948,8 +1949,8 @@ def conn_recover(self):
                     runner("systemctl start virtqemud")
             else:
                 runner("systemctl daemon-reload")
-                runner("systemctl stop libvirtd.socket")
                 runner("systemctl stop libvirtd")
+                runner("systemctl stop libvirtd.socket")
                 runner("systemctl start libvirtd.socket")
                 runner("systemctl reset-failed libvirtd")
                 runner("systemctl start libvirtd")
@@ -2139,10 +2140,20 @@ def conn_setup(self):
                     runner("systemctl daemon-reload")
                     runner("systemctl stop libvirtd")
                     runner("systemctl stop libvirtd.socket")
-                    runner("systemctl start libvirtd.socket")
+                    runner("systemctl start libvirtd.socket", ignore_status=True)
+                    runner("journalctl -u libvirtd.socket", ignore_status=True)
                     utils_misc.wait_for(
                         lambda: process.system('systemctl status libvirtd.socket',
                                                ignore_status=True, shell=True) == 0, 10)
+                    if process.system('systemctl status libvirtd.socket', ignore_status=True, shell=True):
+                        # On RHEL 8, SELinux is preventing systemd from create
+                        # access on the sock_file libvirt-sock. We can generate
+                        # a local policy module to allow this access.
+                        if distro.detect().name == 'rhel' and int(distro.detect().version) == 8:
+                            process.run("ausearch -c 'systemd' --raw | audit2allow -M my-systemd",
+                                        ignore_status=True, shell=True)
+                            process.run("semodule -X 300 -i my-systemd.pp", ignore_status=True, shell=True)
+                            runner("systemctl start libvirtd.socket")
                     runner("systemctl reset-failed libvirtd")
                     runner("systemctl start libvirtd")
                 current_session.close()