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/scripts/test-pipeline-prerequisites.sh

@@ -0,0 +1,230 @@
+#!/bin/bash
+# Test Pipeline Prerequisites
+# Prüft alle Voraussetzungen für CI/CD Pipeline Tests
+
+set -euo pipefail
+
+echo "=========================================="
+echo "CI/CD Pipeline Prerequisites Check"
+echo "=========================================="
+echo ""
+
+ERRORS=0
+WARNINGS=0
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+check_pass() {
+    echo -e "${GREEN}✓${NC} $1"
+}
+
+check_fail() {
+    echo -e "${RED}✗${NC} $1"
+    ((ERRORS++))
+}
+
+check_warn() {
+    echo -e "${YELLOW}⚠${NC} $1"
+    ((WARNINGS++))
+}
+
+# 1. Check Gitea Runner
+echo "1. Checking Gitea Runner..."
+if [ -d "deployment/gitea-runner" ]; then
+    cd deployment/gitea-runner
+    if docker compose ps 2>/dev/null | grep -q "gitea-runner.*Up"; then
+        check_pass "Gitea Runner container is running"
+    else
+        check_fail "Gitea Runner container is not running"
+        echo "   Run: cd deployment/gitea-runner && docker compose up -d"
+    fi
+    
+    if docker compose ps 2>/dev/null | grep -q "gitea-runner-dind.*Up"; then
+        check_pass "Gitea Runner DinD container is running"
+    else
+        check_fail "Gitea Runner DinD container is not running"
+    fi
+    
+    if [ -f "data/.runner" ]; then
+        check_pass "Gitea Runner is registered (data/.runner exists)"
+    else
+        check_warn "Gitea Runner may not be registered (data/.runner missing)"
+        echo "   Run: ./register.sh"
+    fi
+    cd - > /dev/null
+else
+    check_fail "deployment/gitea-runner directory not found"
+fi
+
+echo ""
+
+# 2. Check Workflow Files
+echo "2. Checking Workflow Files..."
+if [ -f ".gitea/workflows/build-image.yml" ]; then
+    check_pass "build-image.yml workflow exists"
+else
+    check_fail ".gitea/workflows/build-image.yml not found"
+fi
+
+if [ -f ".gitea/workflows/manual-deploy.yml" ]; then
+    check_pass "manual-deploy.yml workflow exists"
+else
+    check_warn ".gitea/workflows/manual-deploy.yml not found (optional)"
+fi
+
+echo ""
+
+# 3. Check Ansible Playbooks
+echo "3. Checking Ansible Playbooks..."
+ANSIBLE_PLAYBOOKS=(
+    "deployment/ansible/playbooks/deploy-application-code.yml"
+    "deployment/ansible/playbooks/install-composer-dependencies.yml"
+    "deployment/ansible/playbooks/deploy-image.yml"
+    "deployment/ansible/playbooks/backup.yml"
+)
+
+for playbook in "${ANSIBLE_PLAYBOOKS[@]}"; do
+    if [ -f "$playbook" ]; then
+        check_pass "$(basename $playbook) exists"
+    else
+        check_fail "$playbook not found"
+    fi
+done
+
+echo ""
+
+# 4. Check Ansible Inventory
+echo "4. Checking Ansible Inventory..."
+if [ -f "deployment/ansible/inventory/production.yml" ]; then
+    check_pass "Ansible inventory file exists"
+else
+    check_fail "deployment/ansible/inventory/production.yml not found"
+fi
+
+echo ""
+
+# 5. Check Docker Compose Files
+echo "5. Checking Docker Compose Files..."
+if [ -f "deployment/stacks/production/docker-compose.base.yml" ]; then
+    check_pass "Production docker-compose.base.yml exists"
+else
+    check_fail "Production docker-compose.base.yml not found"
+fi
+
+if [ -f "deployment/stacks/production/docker-compose.production.yml" ]; then
+    check_pass "Production docker-compose.production.yml exists"
+else
+    check_fail "Production docker-compose.production.yml not found"
+fi
+
+if [ -f "deployment/stacks/staging/docker-compose.base.yml" ]; then
+    check_pass "Staging docker-compose.base.yml exists"
+else
+    check_warn "Staging docker-compose.base.yml not found (optional for staging tests)"
+fi
+
+echo ""
+
+# 6. Check Dockerfile
+echo "6. Checking Dockerfile..."
+if [ -f "Dockerfile.production" ]; then
+    check_pass "Dockerfile.production exists"
+else
+    check_fail "Dockerfile.production not found"
+fi
+
+echo ""
+
+# 7. Check SSH Key (if exists locally)
+echo "7. Checking SSH Configuration..."
+if [ -f "$HOME/.ssh/production" ] || [ -f "$HOME/.ssh/id_rsa" ] || [ -f "$HOME/.ssh/id_ed25519" ]; then
+    check_pass "SSH key found (local check only)"
+    echo "   Note: SSH_PRIVATE_KEY secret must be configured in Gitea"
+else
+    check_warn "No SSH key found locally (may be configured in Gitea secrets)"
+fi
+
+echo ""
+
+# 8. Check Registry Access (if possible)
+echo "8. Checking Docker Registry Access..."
+REGISTRY="registry.michaelschiemer.de"
+if command -v curl >/dev/null 2>&1; then
+    if curl -s -k --connect-timeout 5 "https://${REGISTRY}/v2/" >/dev/null 2>&1 || \
+       curl -s --connect-timeout 5 "http://94.16.110.151:5000/v2/" >/dev/null 2>&1; then
+        check_pass "Docker Registry is accessible"
+    else
+        check_warn "Docker Registry may not be accessible (check network/firewall)"
+    fi
+else
+    check_warn "curl not available, skipping registry check"
+fi
+
+echo ""
+
+# 9. Check Git Repository
+echo "9. Checking Git Repository..."
+if git remote get-url origin 2>/dev/null | grep -q "git.michaelschiemer.de"; then
+    check_pass "Git remote points to Gitea"
+    REMOTE_URL=$(git remote get-url origin 2>/dev/null || echo "")
+    echo "   Remote: $REMOTE_URL"
+else
+    check_warn "Git remote may not point to Gitea"
+    REMOTE_URL=$(git remote get-url origin 2>/dev/null || echo "not configured")
+    echo "   Remote: $REMOTE_URL"
+fi
+
+# Check for staging and main branches
+if git show-ref --verify --quiet refs/heads/staging 2>/dev/null; then
+    check_pass "staging branch exists locally"
+else
+    check_warn "staging branch not found locally (may need to fetch)"
+fi
+
+if git show-ref --verify --quiet refs/heads/main 2>/dev/null; then
+    check_pass "main branch exists locally"
+else
+    check_warn "main branch not found locally (may need to fetch)"
+fi
+
+echo ""
+
+# Summary
+echo "=========================================="
+echo "Summary"
+echo "=========================================="
+if [ $ERRORS -eq 0 ] && [ $WARNINGS -eq 0 ]; then
+    echo -e "${GREEN}✓ All checks passed!${NC}"
+    echo ""
+    echo "Next steps:"
+    echo "1. Verify Gitea Secrets are configured:"
+    echo "   https://git.michaelschiemer.de/michael/michaelschiemer/settings/secrets/actions"
+    echo ""
+    echo "2. Test Staging Pipeline:"
+    echo "   git checkout staging"
+    echo "   echo '# Test' >> README.md"
+    echo "   git commit -m 'test: CI/CD pipeline'"
+    echo "   git push origin staging"
+    echo ""
+    echo "3. Monitor Pipeline:"
+    echo "   https://git.michaelschiemer.de/michael/michaelschiemer/actions"
+    exit 0
+elif [ $ERRORS -eq 0 ]; then
+    echo -e "${YELLOW}⚠ Checks passed with warnings${NC}"
+    echo "   Warnings: $WARNINGS"
+    echo ""
+    echo "Review warnings above and proceed with testing."
+    exit 0
+else
+    echo -e "${RED}✗ Checks failed${NC}"
+    echo "   Errors: $ERRORS"
+    echo "   Warnings: $WARNINGS"
+    echo ""
+    echo "Please fix the errors above before testing the pipeline."
+    exit 1
+fi
+