Solved bug existed due to difference between mailu domain and hostname difference. also refactored during this to find the bug

roles/sys-svc-cert-sync-docker/meta/main.yml

@@ -0,0 +1,21 @@
+galaxy_info:
+  author: "Kevin Veen-Birchenbach"
+  description: "Deploys Let’s Encrypt certificates into Docker Compose Nginx setups via systemd service and timer."
+  license: "Infinito.Nexus NonCommercial License"
+  license_url: "https://s.infinito.nexus/license"
+  company: |
+    Kevin Veen-Birchenbach
+    Consulting & Coaching Solutions
+    https://www.veen.world
+  galaxy_tags:
+  - nginx
+  - letsencrypt
+  - docker
+  - systemd
+  repository: "https://s.infinito.nexus/code"
+  issue_tracker_url: "https://s.infinito.nexus/issues"
+  documentation: "https://s.infinito.nexus/code/tree/main/roles/sys-svc-cert-sync-docker"
+  min_ansible_version: "2.9"
+  platforms:
+  - name: Any
+    versions: [all]