No task db error on deployed apps (#915)

Co-authored-by: Ian Seabock (Centific Technologies Inc) <[email protected]>

backend/history/cosmosdbservice.py

@@ -33,7 +33,6 @@ def __init__(self, cosmosdb_endpoint: str, credential: any, database_name: str,
     async def ensure(self):
         if not self.cosmosdb_client or not self.database_client or not self.container_client:
             return False, "CosmosDB client not initialized correctly"
-
         try:
             database_info = await self.database_client.read()
         except:

backend/settings.py

@@ -60,7 +60,7 @@ class _ChatHistorySettings(BaseSettings):
 
     database: str
     account: str
-    account_key: str
+    account_key: Optional[str] = None
     conversations_container: str
     enable_feedback: bool = False
 
@@ -101,7 +101,7 @@ class _AzureOpenAISettings(BaseSettings):
     )
 
     model: str
-    key: str
+    key: Optional[str] = None
     resource: Optional[str] = None
     endpoint: Optional[str] = None
     temperature: float = 0
@@ -200,6 +200,7 @@ class _SearchCommonSettings(BaseSettings):
     include_contexts: Optional[List[str]] = ["citations", "intent"]
     vectorization_dimensions: Optional[int] = None
     role_information: str = Field(
+        default="You are an AI assistant that helps people find information.",
         validation_alias="AZURE_OPENAI_SYSTEM_MESSAGE"
     )