fix(ansible): Prevent Traefik and Gitea restart loops

- Set traefik_auto_restart: false in group_vars to prevent automatic restarts after config deployment
- Set traefik_ssl_restart: false to prevent automatic restarts during SSL certificate setup
- Set gitea_auto_restart: false to prevent automatic restarts when healthcheck fails
- Modify traefik/tasks/ssl.yml to only restart if explicitly requested or acme.json was created
- Modify traefik/tasks/config.yml to respect traefik_auto_restart flag
- Modify gitea/tasks/restart.yml to respect gitea_auto_restart flag
- Add verify-traefik-fix.yml playbook to monitor Traefik stability

This fixes the issue where Traefik was restarting every minute due to
automatic restart mechanisms triggered by config deployments and health checks.
The restart loops caused 504 Gateway Timeouts for Gitea and other services.

Fixes: Traefik restart loop causing service unavailability

deployment/ansible/roles/traefik/tasks/ssl.yml

@@ -0,0 +1,101 @@
+---
+# Setup Let's Encrypt SSL Certificates via Traefik
+
+- name: Check if acme.json exists and is a file
+  ansible.builtin.stat:
+    path: "{{ traefik_stack_path }}/acme.json"
+  register: acme_stat
+
+- name: Remove acme.json if it's a directory
+  ansible.builtin.file:
+    path: "{{ traefik_stack_path }}/acme.json"
+    state: absent
+  become: yes
+  when: acme_stat.stat.exists and acme_stat.stat.isdir
+
+- name: Ensure Traefik acme.json exists and has correct permissions
+  ansible.builtin.file:
+    path: "{{ traefik_stack_path }}/acme.json"
+    state: touch
+    mode: '0600'
+    owner: "{{ ansible_user }}"
+    group: "{{ ansible_user }}"
+  become: yes
+  when: not acme_stat.stat.exists or (acme_stat.stat.exists and acme_stat.stat.isdir)
+
+- name: Verify Traefik is running
+  ansible.builtin.command: |
+    cd {{ traefik_stack_path }}
+    docker compose ps {{ traefik_container_name }}
+  register: traefik_status
+  changed_when: false
+
+- name: Fail if Traefik is not running
+  ansible.builtin.fail:
+    msg: "Traefik is not running. Please start it first."
+  when: traefik_status.rc != 0 or "Up" not in traefik_status.stdout
+
+- name: Force Traefik to reload configuration (only if explicitly requested or acme.json was created)
+  ansible.builtin.command: |
+    cd {{ traefik_stack_path }}
+    docker compose restart {{ traefik_container_name }}
+  changed_when: true
+  when: 
+    - (traefik_ssl_restart | default(false) | bool) or (acme_stat.changed | default(false) | bool)
+    - traefik_status.rc == 0
+    - "Up" in traefik_status.stdout
+
+- name: Wait for Traefik to be ready (after restart)
+  ansible.builtin.wait_for:
+    timeout: "{{ traefik_ssl_wait_timeout | default(10) }}"
+  changed_when: false
+  when: 
+    - (traefik_ssl_restart | default(false) | bool) or (acme_stat.changed | default(false) | bool)
+    - traefik_status.rc == 0
+    - "Up" in traefik_status.stdout
+
+- name: Trigger certificate request by accessing each domain
+  ansible.builtin.uri:
+    url: "https://{{ item }}"
+    method: GET
+    validate_certs: no
+    timeout: "{{ traefik_ssl_trigger_timeout | default(5) }}"
+    status_code: [200, 301, 302, 303, 404, 502, 503]
+  loop: "{{ traefik_ssl_domains | default([]) }}"
+  register: certificate_trigger
+  changed_when: false
+  ignore_errors: yes
+  when: traefik_ssl_domains is defined and traefik_ssl_domains | length > 0
+
+- name: Wait for ACME certificate generation
+  ansible.builtin.wait_for:
+    timeout: "{{ traefik_ssl_cert_wait_timeout | default(30) }}"
+  changed_when: false
+  when: traefik_ssl_domains is defined and traefik_ssl_domains | length > 0
+
+- name: Check if acme.json contains certificates
+  ansible.builtin.stat:
+    path: "{{ traefik_stack_path }}/acme.json"
+  register: acme_file
+
+- name: Display certificate status
+  ansible.builtin.debug:
+    msg: |
+      ========================================
+      SSL Certificate Setup
+      ========================================
+      {% if traefik_ssl_domains is defined and traefik_ssl_domains | length > 0 %}
+      Certificate setup triggered for domains:
+      {{ traefik_ssl_domains | join(', ') }}
+      {% else %}
+      No domains specified for certificate setup.
+      {% endif %}
+      ACME Email: {{ traefik_acme_email | default('Not specified') }}
+      
+      Check Traefik logs to see certificate generation progress:
+      docker compose -f {{ traefik_stack_path }}/docker-compose.yml logs {{ traefik_container_name }} | grep -i acme
+      
+      Certificates should be ready within 1-2 minutes.
+      ========================================
+  when: traefik_show_status | default(true) | bool
+