Update Dockerfile

Dockerfile

@@ -20,6 +20,7 @@ RUN apt-get update && apt-get install -y \
     libmpc-dev \
     nodejs \
     npm \
+    postgresql-client \
     && rm -rf /var/lib/apt/lists/* \
     && pip install --no-cache-dir "poetry==${POETRY_VERSION}"
 
@@ -90,7 +91,8 @@ echo "===== Application Startup at $(date "+%Y-%m-%d %H:%M:%S") ====="\n\
 # Wait for database\n\
 max_tries=30\n\
 count=0\n\
-while ! pg_isready -h $DB_HOST -p $DB_PORT -U $DB_USERNAME; do\n\
+echo "Checking database connection..."\n\
+until PGPASSWORD=$DB_PASSWORD psql -h $DB_HOST -p $DB_PORT -U $DB_USERNAME -d $DB_DATABASE -c "SELECT 1" > /dev/null 2>&1; do\n\
     echo "Waiting for database connection..."\n\
     sleep 2\n\
     count=$((count+1))\n\
@@ -100,6 +102,8 @@ while ! pg_isready -h $DB_HOST -p $DB_PORT -U $DB_USERNAME; do\n\
     fi\n\
 done\n\
 \n\
+echo "Database connection successful"\n\
+\n\
 # Run database migrations\n\
 cd /app/api && poetry run python -m flask db upgrade\n\
 \n\