feat(reverse_proxy): add Netcup DNS ACME challenge support and refactor Caddy setup

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/docker_host/tasks/provision.yml

@@ -3,7 +3,7 @@
   ansible.builtin.set_fact:
     is_keycloak_host: "{{ inventory_hostname in (services | selectattr('name', 'equalto', 'keycloak') | map(attribute='vm') | first) }}"
 
-- name: Run Keycloak tasks
+- name: Create Keycloak directories
   ansible.builtin.file:
     path: "{{ docker.directories.local }}/keycloak/"
     owner: "{{ ansible_user_id }}"
@@ -13,7 +13,7 @@
   when: is_keycloak_host | bool
   become: true
 
-- name: Run Keycloak tasks
+- name: Setup Keycloak realms
   ansible.builtin.template:
     src: "templates/keycloak/realm.json.j2"
     dest: "{{ docker.directories.local }}/keycloak/{{ keycloak.realm }}-realm.json"