add playbook to disable registration

ansible/services/vaultwarden/disable_vaultwarden_sign_ups_playbook.yml

@@ -0,0 +1,18 @@
+- name: Disable Vaultwarden Signups
+  hosts: vipy
+  become: yes
+  vars_files:
+    - ../../infra_vars.yml
+    - ./vaultwarden_vars.yml
+
+  tasks:
+    - name: Disable signups in docker-compose.yml
+      replace:
+        path: "{{ vaultwarden_dir }}/docker-compose.yml"
+        regexp: 'SIGNUPS_ALLOWED:.*'
+        replace: "SIGNUPS_ALLOWED: 'false'"
+
+    - name: Re-deploy Vaultwarden with signups disabled
+      command: docker compose up -d
+      args:
+        chdir: "{{ vaultwarden_dir }}"