update chainserver with comments

Author: harperjuanl

RetrievalAugmentedGeneration/common/utils.py

@@ -126,8 +126,8 @@ def get_vector_index() -> VectorStoreIndex:
 
     logger.info(f"Using {config.vector_store.name} as vector store")
     if config.vector_store.name == "pgvector":
-        connection_string = f"postgresql://{os.getenv('POSTGRES_USER', '')}:{os.getenv('POSTGRES_PASSWORD', '')}@{config.vector_store.url}/{os.getenv('POSTGRES_DB', '')}"
-        db_name = os.getenv('POSTGRES_DB', '')
+        db_name = os.getenv('POSTGRES_DB', 'vector_db')
+        connection_string = f"postgresql://{os.getenv('POSTGRES_USER', '')}:{os.getenv('POSTGRES_PASSWORD', '')}@{config.vector_store.url}/{db_name}"
 
         conn = psycopg2.connect(connection_string)
         conn.autocommit = True

deploy/compose/compose.env

@@ -6,8 +6,6 @@ export MODEL_DIRECTORY="/home/nvidia/llama2_13b_chat_hf_v1/"
 # Fill this out if you dont have a GPU. Leave this empty if you have a local GPU
 export NVIDIA_API_KEY="nvapi-*"
 
-export AI_PLAYGROUND_API_KEY="nvapi-*"
-
 # flag to enable activation aware quantization for the LLM
 # export QUANTIZATION="int4_awq"