Only run pbx and asterisk playbooks once to install

roles/pbx/tasks/freepbx.yml

@@ -139,19 +139,3 @@
     src: freepbx.service.j2
     dest: /etc/systemd/system/freepbx.service
     mode: 755
-
-- name: FreePBX - Enable & (Re)start 'freepbx' systemd service (if pbx_enabled)
-  systemd:
-    daemon_reload: yes
-    name: freepbx
-    enabled: yes
-    state: restarted
-  when: pbx_enabled
-
-- name: FreePBX - Disable & Stop 'freepbx' systemd service (if not pbx_enabled)
-  systemd:
-    daemon_reload: yes
-    name: freepbx
-    enabled: no
-    state: stopped
-  when: not pbx_enabled

roles/pbx/tasks/freepbx_enable.yml

@@ -0,0 +1,15 @@
+- name: FreePBX - Enable & (Re)start 'freepbx' systemd service (if pbx_enabled)
+  systemd:
+    daemon_reload: yes
+    name: freepbx
+    enabled: yes
+    state: restarted
+  when: pbx_enabled
+
+- name: FreePBX - Disable & Stop 'freepbx' systemd service (if not pbx_enabled)
+  systemd:
+    daemon_reload: yes
+    name: freepbx
+    enabled: no
+    state: stopped
+  when: not pbx_enabled

roles/pbx/tasks/main.yml

@@ -16,12 +16,28 @@
       Asterisk  and FreePBX work on other OS's / distros, Thank
       You!  http://FAQ.IIAB.IO        ###############################################################################
 
+- name: Check if freepbx is already installed
+  stat: 
+    path: /etc/systemd/system/freepbx.service
+  register: freepbx_installed
+
+- debug:
+    msg: >-
+      FreePBX already installed. Reinstall shall be skipped
+  when: freepbx_installed.stat.exists
+
 - name: Install Asterisk (debuntu)
   include_tasks: asterisk.yml
-  when: internet_available and pbx_install and (not pbx_installed) and is_debuntu
+  when: internet_available and pbx_install and (not pbx_installed) and is_debuntu and (not freepbx_installed.stat.exists)
+
   #when: internet_available and pbx_install and (not pbx_installed) and ((is_debian and ansible_distribution_major_version == "9") or is_ubuntu_18)
 
 - name: Install FreePBX (debuntu)
   include_tasks: freepbx.yml
+  when: internet_available and pbx_install and (not pbx_installed) and is_debuntu and (not freepbx_installed.stat.exists)
+  #when: internet_available and pbx_install and (not pbx_installed) and ((is_debian and ansible_distribution_major_version == "9") or is_ubuntu_18)
+
+- name: Enable FreePBX (debuntu)
+  include_tasks: freepbx_enable.yml
   when: internet_available and pbx_install and (not pbx_installed) and is_debuntu
   #when: internet_available and pbx_install and (not pbx_installed) and ((is_debian and ansible_distribution_major_version == "9") or is_ubuntu_18)