update..

roles/common/files/etc/systemd/system/apache2.service.d/limits.conf

@@ -0,0 +1,7 @@
+# *** [ Ansible managed: DO NOT EDIT DIRECTLY ] ***
+
+# Custom Values overrides/adds values in 'mariadb.service'
+#
+[Service]
+LimitNOFILE=1048576
+LimitMEMLOCK=infinity

roles/common/files/etc/systemd/system/mariadb.service.d/limits.conf

@@ -0,0 +1,7 @@
+# *** [ Ansible managed: DO NOT EDIT DIRECTLY ] ***
+
+# Custom Values overrides/adds values in 'mariadb.service'
+#
+[Service]
+LimitNOFILE=1048576
+LimitMEMLOCK=infinity

roles/common/handlers/main.yml

@@ -99,3 +99,16 @@
     name: ntpsec
     daemon_reload: yes
     state: restarted
+
+- name: Restart mariadb
+  service:
+    name: mariadb
+    daemon_reload: yes
+    state: restarted
+
+- name: Restart apache2
+  service:
+    name: apache2
+    daemon_reload: yes
+    state: restarted
+

roles/common/tasks/apache2.yml

@@ -0,0 +1,37 @@
+---
+
+# ---
+# Apache2  Server
+# ---
+
+- name: Populate service facts
+  ansible.builtin.service_facts:
+
+#- name: Print service facts
+#  ansible.builtin.debug:
+#    var: ansible_facts.services
+#  when: 
+#    - ansible_facts['services']['apache2.service']['name'] | default('not-found') != 'not-found'
+
+
+- name: (apache2.yml) Ensure directory '/etc/systemd/system/apache2.service.d' is present
+  file:
+    path: /etc/systemd/system/apache2.service.d
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+  when:
+    - ansible_facts['services']['apache2.service']['name'] | default('not-found') != 'not-found'
+
+
+- name: (apache2.yml) Ensure file '/etc/systemd/system/apache2.service.d/limits.conf' exists
+  copy:
+    src: 'etc/systemd/system/apache2.service.d/limits.conf'
+    dest: '/etc/systemd/system/apache2.service.d/limits.conf'
+    owner: root
+    group: root
+    mode: '0644'
+  notify: "Restart apache2"
+  when:
+    - ansible_facts['services']['apache2.service']['name'] | default('not-found') != 'not-found'

roles/common/tasks/main.yml

@@ -280,6 +280,16 @@
   when: groups['caching_nameserver']|string is search(inventory_hostname)
   tags: caching-nameserver
 
+- import_tasks: mysql.yml
+  when: groups['mysql_server']|string is search(inventory_hostname)
+  tags:
+    - mysql
+    - mariadb
+
+- import_tasks: apache2.yml
+  when: groups['apache2_webserver']|string is search(inventory_hostname)
+  tags:
+    - apache2
 
 - import_tasks: systemd-services_debian_based_OS.yml
   when:

roles/common/tasks/mysql.yml

@@ -0,0 +1,37 @@
+---
+
+# ---
+# MySQL / MariaDB  Server
+# ---
+
+- name: Populate service facts
+  ansible.builtin.service_facts:
+
+#- name: Print service facts
+#  ansible.builtin.debug:
+#    var: ansible_facts.services
+#  when: 
+#    - ansible_facts['services']['mariadb.service']['name'] | default('not-found') != 'not-found'
+
+
+- name: (mysql.yml) Ensure directory '/etc/systemd/system/mariadb.service.d' is present
+  file:
+    path: /etc/systemd/system/mariadb.service.d
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+  when:
+    - ansible_facts['services']['mariadb.service']['name'] | default('not-found') != 'not-found'
+
+
+- name: (mysql.yml) Ensure file '/etc/systemd/system/mariadb.service.d/limits.conf' exists
+  copy:
+    src: 'etc/systemd/system/mariadb.service.d/limits.conf'
+    dest: '/etc/systemd/system/mariadb.service.d/limits.conf'
+    owner: root
+    group: root
+    mode: '0644'
+  notify: "Restart mariadb"
+  when:
+    - ansible_facts['services']['mariadb.service']['name'] | default('not-found') != 'not-found'