Remove `elastic_lxc_template_config` mapping

We don't have OS at this moment that have lxc2, so mapping can be dropped
This fil also bring ubuntu focal support, since it has only lxc4.

Change-Id: I486e12555113b9209d8563598ca63e9de4fd1dc7

elk_metrics_7x/roles/elastic_dependencies/defaults/main.yml

@@ -29,14 +29,6 @@
 #                   6GiB the G1 garbage collector can be enabled.
 elastic_g1gc_enabled: true
 
-elastic_lxc_template_config:
-  3:
-    aa_profile: lxc.apparmor.profile
-    mount: lxc.mount.entry
-  2:
-    aa_profile: lxc.aa_profile
-    mount: lxc.mount.entry
-
 # Set the elastic search heap size. If this option is undefined the value will
 # be derived automatically using 1/4 of the available RAM for logstash and 1/2
 # of the available RAM for elasticsearch. The value is expected to be in MiB.

elk_metrics_7x/roles/elastic_dependencies/tasks/main.yml

@@ -175,8 +175,8 @@
         container_command: |
           [[ ! -d "/var/lib/{{ service_name }}" ]] && mkdir -p "/var/lib/{{ service_name }}"
         container_config:
-          - "{{ elastic_lxc_template_config[(lxc_major_version | int)]['mount'] }}=/openstack/{{ inventory_hostname }}/{{ service_name }} var/lib/{{ service_name }} none bind 0 0"
-          - "{{ elastic_lxc_template_config[(lxc_major_version | int)]['aa_profile'] }}=unconfined"
+          - "lxc.mount.entry=/openstack/{{ inventory_hostname }}/{{ service_name }} var/lib/{{ service_name }} none bind 0 0"
+          - "lxc.apparmor.profile=unconfined"
       delegate_to: "{{ physical_host }}"
   when:
     - container_tech | default('lxc') == 'lxc'