Read secrets

app.py

@@ -7,8 +7,17 @@ from langchain.chat_models import ChatOpenAI
 from langchain.chains import ConversationalRetrievalChain
 from langchain.memory import ConversationTokenBufferMemory
 
-openai.api_key = OPENAI_API_KEY
-hf_api_key = HF_API_KEY
+openai.api_key = os.environ['OPENAI_API_KEY']
+hf_api_key = os.environ['HF_API_KEY']
+host = os.environ['host']
+port = os.environ['port']
+database_name = os.environ['database_name']
+user = os.environ['user']
+passwd = os.environ['passwd']
+COLLECTION_NAME = os.environ['COLLECTION_NAME']
+memory_token_limit = os.environ['memory_token_limit']
+llm_name = os.environ['llm_name']
+bot_name = os.environ['bot_name']
 
 embedding = OpenAIEmbeddings()