diff --git a/backend/app/main.py b/backend/app/main.py
new file mode 100644
index 0000000..36ab7aa
--- /dev/null
+++ b/backend/app/main.py
@@ -0,0 +1,48 @@
+import logging
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from sqlalchemy import create_engine, text
+
+from .config import settings
+
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s %(levelname)s %(name)s %(message)s",
+)
+logger = logging.getLogger(__name__)
+
+app = FastAPI(
+    title="Proxmox VPS Panel Secure",
+    version="1.0.0",
+)
+
+origins = [item.strip() for item in settings.allow_origins.split(",") if item.strip()]
+if not origins:
+    raise RuntimeError("ALLOW_ORIGINS must contain at least one explicit origin")
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"],
+    allow_headers=["Authorization", "Content-Type"],
+)
+
+
+@app.get("/health")
+def health() -> dict[str, str]:
+    """Проверяет, что процесс приложения запущен."""
+    return {"status": "ok"}
+
+
+@app.get("/health/ready")
+def readiness() -> dict[str, str]:
+    """Проверяет доступность критичной зависимости PostgreSQL."""
+    engine = create_engine(settings.database_url, pool_pre_ping=True)
+    try:
+        with engine.connect() as connection:
+            connection.execute(text("SELECT 1"))
+    finally:
+        engine.dispose()
+    return {"status": "ready"}