Removed HVAC handler and changed deployment to Kubernetes

Dockerfile

@@ -8,4 +8,4 @@ WORKDIR /app
 
 COPY src/ /app/
 
-ENTRYPOINT ["sh", "-c", "sleep 10 && python main.py"]
+ENTRYPOINT ["python","main.py"]

requirements.txt

@@ -2,23 +2,18 @@ annotated-types==0.7.0
 anyio==4.11.0
 argon2-cffi==25.1.0
 argon2-cffi-bindings==25.1.0
-certifi==2025.10.5
 cffi==2.0.0
-charset-normalizer==3.4.3
 click==8.3.0
 fastapi==0.118.0
 h11==0.16.0
-hvac==2.3.0
 idna==3.10
 mysql-connector-python==9.4.0
 pika==1.3.2
 pycparser==2.23
-pydantic==2.11.10
-pydantic_core==2.33.2
-requests==2.32.5
+pydantic==2.12.0
+pydantic_core==2.41.1
 sniffio==1.3.1
 starlette==0.48.0
 typing-inspection==0.4.2
 typing_extensions==4.15.0
-urllib3==2.5.0
 uvicorn==0.37.0

src/db.py

@@ -1,14 +1,13 @@
 import mysql.connector
-from mysql.connector import pooling
 import threading
-from hvac_handler import get_secret
+from secret_handler import return_credentials
 import os
 import time
 import sys
 
 
-db_username = get_secret("secret/api-internal/db", "username")
-db_password = get_secret("secret/api-internal/db", "password")
+db_username = return_credentials("/etc/secrets/db_username")
+db_password = return_credentials("/etc/secrets/db_password")
 db_host = os.getenv("BACKEND_API_INTERNAL_DB_HOST","localhost")
 db_database = os.getenv("BACKEND_API_INTERNAL_DB_DATABASE","app")
 

src/hvac_handler.py

@@ -1,44 +0,0 @@
-import hvac
-import base64
-import os
-import time
-import sys
-
-HVAC_AGENT_URL = os.getenv("HVAC_AGENT_URL","http://vault-agent:8201")
-
-MAX_RETRIES = 5
-BACKOFF = 5
-
-def get_client():
-	for attempt in range(1, MAX_RETRIES+1):
-		try:
-			client = hvac.Client(url=HVAC_AGENT_URL)
-			if client.is_authenticated():
-				return client
-			raise Exception("Not authenticated")
-		except Exception as e:
-			print(f"Vault connection failed (attempt {attempt}/{MAX_RETRIES}): {e}")
-			time.sleep(BACKOFF * attempt)
-	print("Vault unreachable after retries. Exiting.")
-	sys.exit(1)
-
-client = get_client()
-
-def get_secret(path:str, key:str):
-	try:
-		secret = client.secrets.kv.v2.read_secret_version(
-			mount_point="kv",
-			path=path
-		)
-		return secret["data"]["data"][key]
-	except Exception as e:
-		print(f"Failed to fetch secret '{path}:{key}': {e}")
-		sys.exit(1)
-
-def decrypt_token(ciphertext: str) -> str:
-    response = client.secrets.transit.decrypt_data(
-        name="push-tokens",
-        ciphertext=ciphertext
-    )
-    plaintext_b64 = response["data"]["plaintext"]
-    return base64.b64decode(plaintext_b64).decode()

src/rabbitmq_handler.py

@@ -1,13 +1,17 @@
 import pika
 from typing import Dict
+from secret_handler import return_credentials
 import ssl
-from hvac_handler import get_secret
 import json
 import time
 import sys
+import os
 
-rmq_username = get_secret("secret/api-internal/rmq", "username")
-rmq_password = get_secret("secret/api-internal/rmq", "password")
+rmq_username = return_credentials("/etc/secrets/rmq_username")
+rmq_password = return_credentials("/etc/secrets/rmq_password")
+rmq_host = os.getenv("BACKEND_API_INTERNAL_RMQ_HOST","localhost")
+rmq_vhost = os.getenv("BACKEND_API_INTERNAL_RMQ_VHOST","app_notifications")
+rmq_exchange = os.getenv("BACKEND_API_INTERNAL_RMQ_EXCHANGE","app_notifications")
 
 MAX_RETRIES = 5
 RETRY_DELAY = 5
@@ -18,21 +22,21 @@ def send_message_to_rmq(user_id: int, message: Dict):
 	context.check_hostname = False
 	ssl_options = pika.SSLOptions(context)
 	conn_params = pika.ConnectionParameters(
-		host="localhost",
+		host=rmq_host,
 		port=5671,
 		ssl_options=ssl_options,
 		credentials=credentials,
-		virtual_host="app_notifications"
+		virtual_host=rmq_vhost
 	)
 
 	for attempt in range(1, MAX_RETRIES + 1):
 		try:
 			connection = pika.BlockingConnection(conn_params)
 			channel = connection.channel()
-			channel.exchange_declare(exchange="app_notifications", exchange_type="topic", durable=True)
+			channel.exchange_declare(exchange=rmq_exchange, exchange_type="topic", durable=True)
 			channel.confirm_delivery()
 			channel.basic_publish(
-				exchange='app_notifications',
+				exchange=rmq_exchange,
 				routing_key=f"notify.user.{user_id}",
 				body=json.dumps(message),
 				properties=pika.BasicProperties(

src/secret_handler.py

@@ -0,0 +1,3 @@
+def return_credentials(path: str)->str:
+	with open (path) as file:
+	    return file.read()