use shell to determine if service exists

playbooks/systemd.yml

@@ -15,12 +15,12 @@
       private: no
   tasks:
     - name: Check if service exists
-      stat: path=/usr/lib/systemd/system/{{ service }}
+      shell: systemctl list-units --type=service --all | grep -o "{{ service }}"
       register: status
-      ignore_errors: yes
+      ignore_errors: true
     - name: Change state of service
       systemd:
         name: "{{ service }}"
         enabled: "{{ enable }}"
         state: "{{ state }}"
-      when:  status.stat.exists
+      when:  status.stdout == "{{ service }}"