ci: Fix service container networking in native engine tests

- Remove port mappings that don't work in containerized jobs
- Add health checks for service containers with proper timeout/retry logic
- Use service hostnames (postgres-native, mysql-native) instead of localhost
- Add comprehensive debugging output for network troubleshooting
- Revert to standard PostgreSQL (5432) and MySQL (3306) ports
- Add POSTGRES_USER env var for explicit user configuration
- Services now accessible by hostname within the container network

.gitea/workflows/ci.yml

@@ -200,13 +200,22 @@ jobs:
         env:
           POSTGRES_PASSWORD: nativetest
           POSTGRES_DB: nativedb
-        ports: ['5433:5432']
+          POSTGRES_USER: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
       mysql-native:
-        image: mysql:5.7  # Better compatibility with Go driver
+        image: mysql:5.7
         env:
           MYSQL_ROOT_PASSWORD: nativetest
           MYSQL_DATABASE: nativedb
-        ports: ['3307:3306']
+        options: >-
+          --health-cmd "mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
     steps:
       - name: Checkout code
         env:
@@ -221,13 +230,30 @@ jobs:
 
       - name: Wait for databases
         run: |
-          echo "Waiting for PostgreSQL on localhost:5433..."
+          echo "=== Debugging network and services ==="
+          hostname -I || true
+          netstat -tlnp || true
+          nslookup postgres-native || true
+          nslookup mysql-native || true
+          
+          echo "=== Waiting for PostgreSQL service ==="
           for i in $(seq 1 60); do
-            pg_isready -h localhost -p 5433 && break || sleep 2
+            if pg_isready -h postgres-native -p 5432; then
+              echo "PostgreSQL is ready!"
+              break
+            fi
+            echo "Attempt $i: PostgreSQL not ready, waiting..."
+            sleep 2
           done
-          echo "Waiting for MySQL on localhost:3307..."  
+          
+          echo "=== Waiting for MySQL service ==="  
           for i in $(seq 1 60); do
-            mysqladmin ping -h localhost -P 3307 -u root -pnativetest --silent && break || sleep 2
+            if mysqladmin ping -h mysql-native -u root -pnativetest --silent; then
+              echo "MySQL is ready!"
+              break
+            fi
+            echo "Attempt $i: MySQL not ready, waiting..."
+            sleep 2
           done
 
       - name: Build dbbackup for native testing
@@ -238,7 +264,7 @@ jobs:
           PGPASSWORD: nativetest
         run: |
           echo "=== Setting up PostgreSQL test data ==="
-          psql -h localhost -p 5433 -U postgres -d nativedb -c "
+          psql -h postgres-native -p 5432 -U postgres -d nativedb -c "
           CREATE TABLE native_test_users (
               id SERIAL PRIMARY KEY,
               username VARCHAR(50) NOT NULL,
@@ -265,8 +291,8 @@ jobs:
           mkdir -p /tmp/pg-native-test
           ./dbbackup-native backup single nativedb \
             --db-type postgres \
-            --host localhost \
-            --port 5433 \
+            --host postgres-native \
+            --port 5432 \
             --user postgres \
             --backup-dir /tmp/pg-native-test \
             --native \
@@ -300,7 +326,7 @@ jobs:
           MYSQL_PWD: nativetest
         run: |
           echo "=== Setting up MySQL test data ==="
-          mysql -h localhost -P 3307 -u root -pnativetest nativedb -e "
+          mysql -h mysql-native -P 3306 -u root -pnativetest nativedb -e "
           CREATE TABLE native_test_orders (
               id INT AUTO_INCREMENT PRIMARY KEY,
               customer_name VARCHAR(100) NOT NULL,
@@ -326,8 +352,8 @@ jobs:
           mkdir -p /tmp/mysql-native-test
           MYSQL_PWD=nativetest ./dbbackup-native backup single nativedb \
             --db-type mysql \
-            --host localhost \
-            --port 3307 \
+            --host mysql-native \
+            --port 3306 \
             --user root \
             --backup-dir /tmp/mysql-native-test \
             --native \