Add Python auth service

Author: cghyzel

services/auth-python/Dockerfile

@@ -0,0 +1,6 @@
+FROM python:3.11-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY app ./app
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

services/auth-python/app/auth.py

@@ -0,0 +1,33 @@
+import uuid
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+
+router = APIRouter()
+
+USER_DB = {
+    "alice": "password123",
+    "bob": "hunter2",
+    "admin": "admin"
+}
+
+SESSIONS = {}
+
+class LoginPayload(BaseModel):
+    username: str
+    password: str
+
+@router.post("/login")
+async def login(payload: LoginPayload):
+    real_password = USER_DB.get(payload.username)
+    if real_password and real_password == payload.password:
+        token = str(uuid.uuid4())
+        SESSIONS[token] = payload.username
+        return {"token": token}
+    raise HTTPException(status_code=401, detail="Invalid credentials")
+
+@router.get("/validate")
+async def validate_token(token: str):
+    username = SESSIONS.get(token)
+    if not username:
+        raise HTTPException(status_code=401, detail="Invalid token")
+    return {"username": username}

services/auth-python/app/main.py

@@ -0,0 +1,14 @@
+from fastapi import FastAPI
+from app.auth import router as auth_router
+
+app = FastAPI(
+    title="Auth Service",
+    version="1.0.0",
+    docs_url="/docs",       # Swagger UI
+    redoc_url="/redoc"      # ReDoc
+)
+app.include_router(auth_router, prefix="/auth")
+
+@app.get("/")
+def healthcheck():
+    return {"status": "ok"}

services/auth-python/requirements.txt

@@ -0,0 +1,2 @@
+fastapi==0.110.1
+uvicorn==0.29.0