fix: Gitea Traefik routing and connection pool optimization

- Remove middleware reference from Gitea Traefik labels (caused routing issues)
- Optimize Gitea connection pool settings (MAX_IDLE_CONNS=30, authentication_timeout=180s)
- Add explicit service reference in Traefik labels
- Fix intermittent 504 timeouts by improving PostgreSQL connection handling

Fixes Gitea unreachability via git.michaelschiemer.de

deployment/ansible/playbooks/verify-production.yml

@@ -0,0 +1,136 @@
+---
+- name: Verify Production Environment
+  hosts: production
+  become: no
+  gather_facts: yes
+
+  vars:
+    # All deployment variables are now defined in group_vars/production.yml
+
+  tasks:
+    - name: Debug - Show variables
+      debug:
+        msg:
+          - "app_stack_path: {{ app_stack_path | default('NOT SET') }}"
+          - "postgresql_production_stack_path: {{ postgresql_production_stack_path | default('NOT SET') }}"
+      when: false  # Disable by default, enable for debugging
+
+    - name: Check if PostgreSQL-Production Stack exists
+      stat:
+        path: "{{ postgresql_production_stack_path }}"
+      register: postgresql_production_stack_dir
+
+    - name: Fail if PostgreSQL-Production Stack doesn't exist
+      fail:
+        msg: "PostgreSQL-Production Stack not found at {{ postgresql_production_stack_path }}"
+      when: not postgresql_production_stack_dir.stat.exists
+
+    - name: Check PostgreSQL-Production container status
+      shell: |
+        docker compose -f {{ postgresql_production_stack_path }}/docker-compose.yml ps postgres-production 2>/dev/null | grep -Eiq "Up|running" || echo "not_running"
+      register: postgresql_production_status
+      changed_when: false
+      failed_when: false
+
+    - name: Display PostgreSQL-Production status
+      debug:
+        msg: "PostgreSQL-Production: {{ 'RUNNING' if 'Up' in postgresql_production_status.stdout or 'running' in postgresql_production_status.stdout else 'NOT RUNNING' }}"
+
+    - name: Verify PostgreSQL-Production connection
+      shell: |
+        docker exec postgres-production pg_isready -U postgres -d michaelschiemer 2>/dev/null || echo "not_ready"
+      register: postgresql_production_ready
+      changed_when: false
+      failed_when: false
+      when: "'Up' in postgresql_production_status.stdout or 'running' in postgresql_production_status.stdout"
+
+    - name: Display PostgreSQL-Production connection status
+      debug:
+        msg: "PostgreSQL-Production Connection: {{ 'READY' if 'accepting connections' in postgresql_production_ready.stdout else 'NOT READY' }}"
+      when: postgresql_production_ready is defined
+
+    - name: Check if Production Application Stack exists
+      stat:
+        path: "{{ app_stack_path | default(stacks_base_path + '/production') }}"
+      register: production_stack_dir
+
+    - name: Fail if Production Application Stack doesn't exist
+      fail:
+        msg: "Production Application Stack not found at {{ app_stack_path | default(stacks_base_path + '/production') }}"
+      when: not production_stack_dir.stat.exists
+
+    - name: Check production application container status
+      shell: |
+        docker ps --format "{{ '{{' }}.Names{{ '}}' }}" | grep -E "^(app|php)" | head -1 || echo "not_running"
+      register: production_app_container
+      changed_when: false
+      failed_when: false
+
+    - name: Display production application container status
+      debug:
+        msg: "Production App Container: {{ production_app_container.stdout if production_app_container.stdout != 'not_running' else 'NOT RUNNING' }}"
+
+    - name: Verify Networks
+      shell: |
+        docker network ls --format "{{ '{{' }}.Name{{ '}}' }}" | grep -E "(traefik-public|postgres-production-internal|app-internal)" || echo "networks_missing"
+      register: networks_status
+      changed_when: false
+      failed_when: false
+
+    - name: Display Networks status
+      debug:
+        msg: "{{ networks_status.stdout_lines }}"
+
+    - name: Test Network connectivity from production app to postgres-production
+      shell: |
+        docker exec {{ production_app_container.stdout }} nc -zv postgres-production 5432 2>&1 || echo "connection_failed"
+      register: network_test
+      changed_when: false
+      failed_when: false
+      when: production_app_container.stdout != 'not_running'
+
+    - name: Display Network connectivity status
+      debug:
+        msg: "Network connectivity: {{ 'SUCCESS' if 'succeeded' in network_test.stdout or 'open' in network_test.stdout else 'FAILED' }}"
+      when: network_test is defined
+
+    - name: Basic Health Check
+      uri:
+        url: "https://michaelschiemer.de/health"
+        method: GET
+        validate_certs: no
+        status_code: [200, 404, 502, 503]
+        timeout: 10
+      register: basic_health_check
+      ignore_errors: yes
+
+    - name: Display Basic Health Check status
+      debug:
+        msg: "Basic Health Check: {{ 'SUCCESS' if basic_health_check.status == 200 else 'FAILED - Status: ' + (basic_health_check.status|string) }}"
+
+    - name: Extended Health Check
+      uri:
+        url: "https://michaelschiemer.de/admin/health/api/summary"
+        method: GET
+        validate_certs: no
+        status_code: [200, 404, 502, 503]
+        timeout: 10
+      register: extended_health_check
+      ignore_errors: yes
+
+    - name: Display Extended Health Check status
+      debug:
+        msg: "Extended Health Check: {{ 'SUCCESS' if extended_health_check.status == 200 else 'NOT AVAILABLE' }}"
+      when: extended_health_check.status is defined
+
+    - name: Display verification summary
+      debug:
+        msg:
+          - "=========================================="
+          - "Production Verification Summary"
+          - "=========================================="
+          - "PostgreSQL-Production: {{ 'RUNNING' if 'Up' in postgresql_production_status.stdout or 'running' in postgresql_production_status.stdout else 'NOT RUNNING' }}"
+          - "Production App: {{ production_app_container.stdout if production_app_container.stdout != 'not_running' else 'NOT RUNNING' }}"
+          - "Basic Health Check: {{ 'SUCCESS' if basic_health_check.status == 200 else 'FAILED' }}"
+          - "=========================================="
+