Add fail2ban role and clean up yaml lint noise

roles/ensure_ansible_prereq/tasks/main.yml

@@ -1,51 +1,56 @@
 ---
 # tasks file for ensure_ansible_prereq
-- name: 'include vendor / version specific tasks'
-  when:
-    - ansible_facts["system"] == 'Linux'
+- name: include vendor / version specific tasks
+  when: ["ansible_facts[\"system\"] == 'Linux'"]
   ansible.builtin.include_tasks:
     file: '{{ lookup("first_found", findme) }}'
   vars:
     findme:
       files:
-        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"] }}-{{ ansible_facts["architecture"] }}.yml'
-        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"] }}-default.yml'
+        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-{{ ansible_facts["architecture"] }}.yml'
+        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-default.yml'
         - '{{ ansible_facts["distribution"] }}-default.yml'
-        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"] }}-{{ ansible_facts["architecture"] }}.yml'
-        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"] }}-default.yml'
+        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-{{ ansible_facts["architecture"] }}.yml'
+        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-default.yml'
         - '{{ ansible_facts["os_family"] }}-default.yml'
-        - 'default.yml'
-      errors: 'ignore'
-- name: 'include vendor / version specific variables'
-  when:
-    - ansible_facts["system"] == 'Linux'
+        - default.yml
+      errors: ignore
+- name: include vendor / version specific variables
+  when: ["ansible_facts[\"system\"] == 'Linux'"]
   ansible.builtin.include_vars:
     file: '{{ lookup("first_found", findme) }}'
-    name: 'ensure_ansible_prereq'
+    name: ensure_ansible_prereq
   vars:
     findme:
       files:
-        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"] }}-{{ ansible_facts["architecture"] }}.yml'
-        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"] }}-default.yml'
+        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-{{ ansible_facts["architecture"] }}.yml'
+        - '{{ ansible_facts["distribution"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-default.yml'
         - '{{ ansible_facts["distribution"] }}-default.yml'
-        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"] }}-{{ ansible_facts["architecture"] }}.yml'
-        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"] }}-default.yml'
+        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-{{ ansible_facts["architecture"] }}.yml'
+        - '{{ ansible_facts["os_family"] }}-{{ ansible_facts["distribution_major_version"]
+          }}-default.yml'
         - '{{ ansible_facts["os_family"] }}-default.yml'
-        - 'default.yml'
-      paths:
-        - '../vars/'
-      errors: 'ignore'
-- name: 'package discovery'
+        - default.yml
+      paths: [../vars/]
+      errors: ignore
+- name: package discovery
   when:
     - ansible_facts["system"] == 'Linux'
     - ansible_facts["packages"] is not defined
   ansible.builtin.package_facts:
-- name: 'service discovery'
+- name: service discovery
   when:
     - ansible_facts["system"] == 'Linux'
     - ansible_facts["services"] is not defined
   ansible.builtin.service_facts:
-- name: 'ensure packages'
+- name: ensure packages
   when:
     - ansible_facts["system"] == 'Linux'
     - ensure_ansible_prereq is defined
@@ -58,9 +63,9 @@
   loop_control:
     label: '{{ item.name }} will be {{ item.state }}'
   notify:
-    - 'ensure_ansible_prereq.package_facts'
-    - 'ensure_ansible_prereq.service_facts'
-- name: 'ensure configurations'
+    - ensure_ansible_prereq.package_facts
+    - ensure_ansible_prereq.service_facts
+- name: ensure configurations
   when:
     - ansible_facts["system"] == 'Linux'
     - ensure_ansible_prereq is defined
@@ -81,11 +86,11 @@
   loop_control:
     label: '{{ item.dest }} will be ensured'
   notify:
-    - 'ensure_ansible_prereq.package_facts'
-    - 'ensure_ansible_prereq.service_facts'
-    - 'ensure_ansible_prereq.service_reload'
-    - 'ensure_ansible_prereq.service_restart'
-- name: 'ensure services'
+    - ensure_ansible_prereq.package_facts
+    - ensure_ansible_prereq.service_facts
+    - ensure_ansible_prereq.service_reload
+    - ensure_ansible_prereq.service_restart
+- name: ensure services
   when:
     - ansible_facts["system"] == 'Linux'
     - ensure_ansible_prereq is defined
@@ -99,8 +104,7 @@
   loop_control:
     label: '{{ item.name }} will be {{ item.state }}'
   notify:
-    - 'ensure_ansible_prereq.package_facts'
-    - 'ensure_ansible_prereq.service_facts'
-- name: 'flush handlers'
-  ansible.builtin.meta: 'flush_handlers'
-...
+    - ensure_ansible_prereq.package_facts
+    - ensure_ansible_prereq.service_facts
+- name: flush handlers
+  ansible.builtin.meta: flush_handlers