Added SELinux workound for systemd service to work after 'postfix start'

Resolves: rhbz#2055915

postfix.service

@@ -11,6 +11,7 @@ PrivateTmp=true
 CapabilityBoundingSet=~ CAP_NET_ADMIN CAP_SYS_ADMIN CAP_SYS_BOOT CAP_SYS_MODULE
 ProtectSystem=true
 PrivateDevices=true
+ExecStartPre=-/usr/sbin/restorecon -R /var/spool/postfix/pid/master.pid
 ExecStartPre=-/usr/libexec/postfix/aliasesdb
 ExecStartPre=-/usr/libexec/postfix/chroot-update
 ExecStart=/usr/sbin/postfix start

postfix.spec

@@ -49,7 +49,7 @@
 Name: postfix
 Summary: Postfix Mail Transport Agent
 Version: 3.5.9
-Release: 17%{?dist}
+Release: 18%{?dist}
 Epoch: 2
 URL: http://www.postfix.org
 License: (IBM and GPLv2+) or (EPL-2.0 and GPLv2+)
@@ -62,7 +62,10 @@ Requires(preun): %{_sbindir}/alternatives
 Requires(preun): systemd
 Requires(postun): systemd
 # Required by /usr/libexec/postfix/postfix-script
-Requires: diffutils, findutils
+Requires: diffutils
+Requires: findutils
+# for restorecon
+Requires: policycoreutils
 Provides: MTA smtpd smtpdaemon server(smtp)
 
 Source0: ftp://ftp.porcupine.org/mirrors/postfix-release/official/%{name}-%{version}.tar.gz
@@ -800,6 +803,10 @@ fi
 %endif
 
 %changelog
+* Tue Feb 22 2022 Jaroslav Škarvada <jskarvad@redhat.com> - 2:3.5.9-18
+- Added SELinux workound for systemd service to work after 'postfix start'
+  Resolves: rhbz#2055915
+
 * Tue Feb 15 2022 Jaroslav Škarvada <jskarvad@redhat.com> - 2:3.5.9-17
 - Fixed problem in the dict_inline found by coverity
   Resolves: rhbz#1938847