Integrate user for mattermost into playbooks.

hetzner.yaml

@@ -7,6 +7,7 @@
   tasks:
     - name: Backup hetzner
       block:
+        - include_vars: vars/common/variable.yaml
         - include_vars: vars/hetzner/secret.yaml
         - include_vars: vars/hetzner/variable.yaml
 
@@ -68,19 +69,21 @@
 
         - name: Inform Mattermost about success
           uri:
-            url: https://cs-mm.ddnss.de/hooks/og4ckuqet7fafb8kjuaigzuh7c
+            url: "{{ mattermost_url }}"
             validate_certs: no
             method: POST
             body_format: json
             body:
+              username: "{{ mattermost_user }}"
               text: "{{ ansible_date_time.date }} {{ ansible_date_time.time }} (info): Playbook ran successful ({{ ansible_play_name }})"
 
       rescue:
         - name: Inform Mattermost about error
           uri:
-            url: https://cs-mm.ddnss.de/hooks/og4ckuqet7fafb8kjuaigzuh7c
+            url: "{{ mattermost_url }}"
             validate_certs: no
             method: POST
             body_format: json
             body:
+              username: "{{ mattermost_user }}"
               text: "{{ ansible_date_time.date }} {{ ansible_date_time.time }} (info): Playbook ran with error ({{ ansible_play_name }})"