Roles only run on intended supported OS, and minor cleanup of when statements to match

roles/ensure_dovecot/tasks/main.yml

@@ -1,7 +1,17 @@
 ---
 # tasks file for ensure_dovecot
+- name: Assert Target OS Is Supported
+  when:
+    - ansible_facts["system"] is defined
+  ansible.builtin.assert:
+    fail_msg: "Unsupported OS: {{ ansible_facts['distribution'] | default('unknown') }}"
+    quiet: true
+    that:
+      - ansible_facts["system"] == 'Linux'
+      - >-
+        ansible_facts["distribution"] in ['AlmaLinux', 'CentOS', 'Debian',
+        'Fedora', 'OracleLinux', 'Rocky', 'Ubuntu']
 - name: Include Variables
-  when: ["ansible_facts[\"system\"] == 'Linux'"]
   ansible.builtin.include_vars:
     file: '{{ lookup("first_found", findme) }}'
     name: ensure_dovecot
@@ -23,17 +33,14 @@
       errors: ignore
 - name: Package Discovery
   when:
-    - ansible_facts["system"] == 'Linux'
     - ansible_facts["packages"] is not defined
   ansible.builtin.package_facts:
 - name: Service Discovery
   when:
-    - ansible_facts["system"] == 'Linux'
     - ansible_facts["services"] is not defined
   ansible.builtin.service_facts:
 - name: Ensure Sysctl
   when:
-    - ansible_facts["system"] == 'Linux'
     - ensure_dovecot is defined
     - ensure_dovecot.sysctl_list is defined
     - ensure_dovecot.sysctl_list is iterable
@@ -54,7 +61,6 @@
     - Ensure_Dovecot.Service_Reload_Config
 - name: Ensure Packages
   when:
-    - ansible_facts["system"] == 'Linux'
     - ensure_dovecot is defined
     - ensure_dovecot.package_list is defined
     - ensure_dovecot.package_list is iterable
@@ -71,7 +77,6 @@
     - Ensure_Dovecot.Service_Reload_Config
 - name: Ensure Seboolean
   when:
-    - ansible_facts["system"] == 'Linux'
     - ensure_dovecot is defined
     - ensure_dovecot.seboolean_list is defined
     - ensure_dovecot.seboolean_list is iterable
@@ -89,7 +94,6 @@
     - Ensure_Dovecot.Service_Reload_Config
 - name: Ensure Configurations
   when:
-    - ansible_facts["system"] == 'Linux'
     - ensure_dovecot is defined
     - ensure_dovecot.template_list is defined
     - ensure_dovecot.template_list is iterable
@@ -99,7 +103,7 @@
     group: '{{ item.group | default(omit) }}'
     mode: '{{ item.mode | default(omit) }}'
     owner: '{{ item.owner | default(omit) }}'
-    selevel: '{{ iteml.selevel | default(omit) }}'
+    selevel: '{{ item.selevel | default(omit) }}'
     serole: '{{ item.serole | default(omit) }}'
     setype: '{{ item.setype | default(omit) }}'
     seuser: '{{ item.seuser | default(omit) }}'
@@ -114,7 +118,6 @@
     - Ensure_Dovecot.Service_Reload_Config
 - name: Ensure Firewall
   when:
-    - ansible_facts["system"] == 'Linux'
     - ansible_facts.packages["firewalld"] is defined
     - ansible_facts.packages["python3-firewall"] is defined
     - ensure_dovecot is defined
@@ -134,7 +137,6 @@
     - Ensure_Dovecot.Service_Reload_Config
 - name: Ensure Services
   when:
-    - ansible_facts["system"] == 'Linux'
     - ensure_dovecot is defined
     - ensure_dovecot.service_list is defined
     - ensure_dovecot.service_list is iterable
@@ -148,3 +150,27 @@
   notify: [Ensure_Dovecot.Package_Facts, Ensure_Dovecot.Service_Facts]
 - name: Flush Handlers
   ansible.builtin.meta: flush_handlers
+- name: Post Verification Service Discovery
+  when:
+    - ensure_dovecot is defined
+    - ensure_dovecot.service_list is defined
+    - ensure_dovecot.service_list is iterable
+  ansible.builtin.service_facts:
+- name: Assert Managed Services Are Active
+  when:
+    - ensure_dovecot is defined
+    - ensure_dovecot.service_list is defined
+    - ensure_dovecot.service_list is iterable
+  ansible.builtin.assert:
+    fail_msg: "Service {{ item.name }} is not active"
+    quiet: true
+    that:
+      - >-
+        item.state != 'started' or
+        (ansible_facts['services'][item.name ~ '.service'] is defined and
+        ansible_facts['services'][item.name ~ '.service']['state'] == 'running') or
+        (ansible_facts['services'][item.name] is defined and
+        ansible_facts['services'][item.name]['state'] == 'running')
+  loop: "{{ ensure_dovecot.service_list }}"
+  loop_control:
+    label: "{{ item.name }} will be verified"