Command-line args

The host uses AddCommandLine over keys filtered by IsRestrictedArgument. Standard form is --Section:Key=value. Both colon (:) and the dotnet double-underscore form work via the host builder.

Allowed (overridable from CLI)

Arg	Type	Default	Source
--Http:Endpoint=<url>	string	http://localhost:45928/	HttpConfig.Endpoint
--Http:WebSocketEndpoint=<url>	string	http://localhost:45929/	HttpConfig.WebSocketEndpoint
--Http:AllowImmediateStart=<bool>	bool	false	HttpConfig.AllowImmediateStart
--Messaging:Enabled=<bool>	bool	false	MessagingConfig.Enabled
--environment=<env>	string	N/A	Generic Host built-in (selects Azure App Config label)
--contentRoot=<path>	string	N/A	Generic Host built-in
--applicationName=<name>	string	N/A	Generic Host built-in