Remove chrony package if containerized chrony is enabled

This patch is removing chrony package
from docker host when containerized chrony is enabled.
It is also fixing issue with chrony container running
under Ubuntu docker host as noted below.

+ exec /usr/sbin/chronyd -d -f /etc/chrony/chrony.conf
2020-06-08T08:19:09Z chronyd version 3.4 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +SCFILTER +SIGND +ASYNCDNS +SECHASH +IPV6 -DEBUG)
2020-06-08T08:19:09Z Fatal error : Could not open configuration file /etc/chrony/chrony.conf : Permission denied

Added also removal apparmor profile for ubuntu when
containerized chrony is enabled, as chrony's package
is not removing apparmor profile, and therefore
containerized chrony is not working.

Change-Id: Icf3bbae38b9f5630b69d5c8cf6a8bee11786a836
Closes-Bug: #1882513

ansible/roles/baremetal/defaults/main.yml

@@ -60,11 +60,13 @@ ubuntu_pkg_removals:
  - lxc
  - libvirt-bin
  - open-iscsi
+ - "{% if enable_chrony | bool %}chrony{% endif %}"
 
 redhat_pkg_removals:
  - libvirt
  - libvirt-daemon
  - iscsi-initiator-utils
+ - "{% if enable_chrony | bool %}chrony{% endif %}"
 
 # Path to a virtualenv in which to install python packages. If None, a
 # virtualenv will not be used.

ansible/roles/baremetal/tasks/post-install.yml

@@ -146,6 +146,22 @@
     - ansible_distribution == "Ubuntu"
     - apparmor_libvirtd_profile.stat.exists
 
+- name: Get stat of chronyd apparmor profile
+  stat:
+    path: /etc/apparmor.d/usr.sbin.chronyd
+  register: apparmor_chronyd_profile
+  when:
+    - ansible_os_family == "Debian"
+    - enable_chrony | bool
+
+- name: Remove apparmor profile for chrony
+  command: apparmor_parser -R /etc/apparmor.d/usr.sbin.chronyd
+  become: True
+  when:
+    - ansible_os_family == "Debian"
+    - enable_chrony | bool
+    - apparmor_chronyd_profile.stat.exists
+
 - name: Create docker group
   group:
     name: docker

releasenotes/notes/bug-1882513-chrony-permission-denied-917b3bffc5cdb38d.yaml

+---
+fixes:
+  - |
+    Removing chrony package and AppArmor profile from docker host if
+    containerized chrony is enabled.
+    `LP#1882513 <https://bugs.launchpad.net/kolla-ansible/+bug/1882513>`__