Step 5: Authentication System & Environment Variables

- Implemented JWT authentication in Console backend
- Added .env file for environment variable management
- Updated docker-compose to use .env variables
- Created authentication endpoints (login/logout/me)
- Added protected route middleware
- Created ARCHITECTURE.md with Kafka as main messaging platform
- Defined Kafka for both events and task queues
- Redis dedicated for caching and session management

Test credentials:
- admin/admin123
- user/user123

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

console/backend/auth.py

@@ -0,0 +1,65 @@
+from datetime import datetime, timedelta
+from typing import Optional
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from pydantic import BaseModel
+import os
+
+SECRET_KEY = os.getenv("JWT_SECRET_KEY", "your-secret-key-change-in-production")
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 30
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+class TokenData(BaseModel):
+    username: Optional[str] = None
+
+class UserLogin(BaseModel):
+    username: str
+    password: str
+
+class UserInDB(BaseModel):
+    username: str
+    hashed_password: str
+    email: str
+    full_name: Optional[str] = None
+    is_active: bool = True
+
+def verify_password(plain_password, hashed_password):
+    return pwd_context.verify(plain_password, hashed_password)
+
+def get_password_hash(password):
+    return pwd_context.hash(password)
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+async def get_current_user(token: str = Depends(oauth2_scheme)):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        username: str = payload.get("sub")
+        if username is None:
+            raise credentials_exception
+        token_data = TokenData(username=username)
+    except JWTError:
+        raise credentials_exception
+    return token_data

console/backend/main.py

@@ -1,10 +1,17 @@
-from fastapi import FastAPI, HTTPException, Request, Response
+from fastapi import FastAPI, HTTPException, Request, Response, Depends, status
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.security import OAuth2PasswordRequestForm
 import uvicorn
-from datetime import datetime
+from datetime import datetime, timedelta
 import httpx
 import os
 from typing import Any
+from auth import (
+    Token, UserLogin, UserInDB,
+    verify_password, get_password_hash,
+    create_access_token, get_current_user,
+    ACCESS_TOKEN_EXPIRE_MINUTES
+)
 
 app = FastAPI(
     title="Console API Gateway",
@@ -40,6 +47,58 @@ async def health_check():
         "timestamp": datetime.now().isoformat()
     }
 
+# Authentication endpoints
+@app.post("/api/auth/login", response_model=Token)
+async def login(form_data: OAuth2PasswordRequestForm = Depends()):
+    """Login endpoint for authentication"""
+    # For demo purposes - in production, check against database
+    # This is temporary until we integrate with Users service
+    demo_users = {
+        "admin": {
+            "username": "admin",
+            "hashed_password": get_password_hash("admin123"),
+            "email": "admin@site11.com",
+            "full_name": "Administrator",
+            "is_active": True
+        },
+        "user": {
+            "username": "user",
+            "hashed_password": get_password_hash("user123"),
+            "email": "user@site11.com",
+            "full_name": "Test User",
+            "is_active": True
+        }
+    }
+    
+    user = demo_users.get(form_data.username)
+    if not user or not verify_password(form_data.password, user["hashed_password"]):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    
+    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
+    access_token = create_access_token(
+        data={"sub": user["username"]}, expires_delta=access_token_expires
+    )
+    return {"access_token": access_token, "token_type": "bearer"}
+
+@app.get("/api/auth/me")
+async def get_me(current_user = Depends(get_current_user)):
+    """Get current user information"""
+    return {
+        "username": current_user.username,
+        "email": f"{current_user.username}@site11.com",
+        "is_active": True
+    }
+
+@app.post("/api/auth/logout")
+async def logout(current_user = Depends(get_current_user)):
+    """Logout endpoint"""
+    # In a real application, you might want to blacklist the token
+    return {"message": "Successfully logged out"}
+
 @app.get("/api/status")
 async def system_status():
     services_status = {}
@@ -65,10 +124,19 @@ async def system_status():
         "timestamp": datetime.now().isoformat()
     }
 
+# Protected endpoint example
+@app.get("/api/protected")
+async def protected_route(current_user = Depends(get_current_user)):
+    """Example of a protected route"""
+    return {
+        "message": "This is a protected route",
+        "user": current_user.username
+    }
+
 # API Gateway - Route to Users service
 @app.api_route("/api/users/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
-async def proxy_to_users(path: str, request: Request):
-    """Proxy requests to Users service"""
+async def proxy_to_users(path: str, request: Request, current_user = Depends(get_current_user)):
+    """Proxy requests to Users service (protected)"""
     try:
         async with httpx.AsyncClient() as client:
             # Build the target URL

console/backend/requirements.txt

@@ -2,4 +2,7 @@ fastapi==0.109.0
 uvicorn[standard]==0.27.0
 python-dotenv==1.0.0
 pydantic==2.5.3
-httpx==0.26.0
+httpx==0.26.0
+python-jose[cryptography]==3.3.0
+passlib[bcrypt]==1.7.4
+python-multipart==0.0.6