initial commit

app/main.py

@@ -0,0 +1,64 @@
+"""Light Docker API - FastAPI application entry point."""
+
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.config import settings
+from app.docker_client import get_docker_manager
+from app.routes import containers
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """Application lifespan handler."""
+    # Startup: Initialize Docker client and verify connection
+    docker = get_docker_manager()
+    if not docker.ping():
+        raise RuntimeError("Cannot connect to Docker daemon")
+    print(f"Connected to Docker daemon, instance ID: {docker.instance_id}")
+    yield
+    # Shutdown: Cleanup if needed
+    print("Shutting down Light Docker API")
+
+
+app = FastAPI(
+    title=settings.api_title,
+    version=settings.api_version,
+    description="A simplified, secure REST API for Docker container operations",
+    lifespan=lifespan,
+)
+
+# Add CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.cors_origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include routers
+app.include_router(containers.router)
+
+
+@app.get("/", tags=["root"])
+async def root():
+    """Root endpoint with API information."""
+    return {
+        "name": settings.api_title,
+        "version": settings.api_version,
+        "instance_id": settings.instance_id,
+    }
+
+
+@app.get("/health", tags=["health"])
+async def health():
+    """Health check endpoint."""
+    docker = get_docker_manager()
+    docker_ok = docker.ping()
+    return {
+        "status": "healthy" if docker_ok else "unhealthy",
+        "docker": "connected" if docker_ok else "disconnected",
+    }