fix(debian): refs #8318 check por apparmor and postfix services

roles/debian-base/tasks/relayhost.yml

@@ -1,8 +1,12 @@
-- name: Install exim packages
+- name: Getting service facts to check for postfix
+  service_facts:
+- when: "'postfix.service' not in ansible_facts.services"
+  block:
+  - name: Install exim packages
     apt:
       name: exim4
       state: present
-- name: Prepare exim configuration
+  - name: Prepare exim configuration
     blockinfile:
       path: /etc/exim4/update-exim4.conf.conf
       marker_begin: '--- BEGIN VN ---'
@@ -20,9 +24,9 @@
       mode: u=rw,g=r,o=r
     notify: update exim configuration
     register: exim_config
-- name: Force execution of handlers immediately
+  - name: Force execution of handlers immediately
     meta: flush_handlers
-- name: Sending mail to verify relay host configuration works
+  - name: Sending mail to verify relay host configuration works
     shell: >
       sleep 2; echo "If you see this message, relayhost on {{ ansible_fqdn }} has been configured correctly." \
         | mailx -s "Relayhost test for {{ ansible_fqdn }}" "{{ sysadmin_mail }}"

roles/debian-host/tasks/apparmor.yml

@@ -1,12 +1,16 @@
-- name: Stop AppArmor
+- name: Getting service facts to check for apparmor
+  service_facts:
+- when: "'apparmor.service' in ansible_facts.services"
+  block:
+  - name: Stop AppArmor
     systemd:
       name: apparmor
       state: stopped
-- name: Disable AppArmor service
+  - name: Disable AppArmor service
     systemd:
       name: apparmor
       enabled: no
-- name: Mask AppArmor service
+  - name: Mask AppArmor service
     systemd:
       name: apparmor
       masked: yes