SASL authentication method.
The codec used for compression of your logs.
The version of the custom logging format used for the configured endpoint. The logging call gets placed by default in vcl_log if format_version is set to 2 and in vcl_deliver if format_version is set to 1.
Where in the generated VCL the logging call should be placed. If not set, endpoints with format_version of 2 are placed in vcl_log and those with format_version of 1 are placed in vcl_deliver.
The number of acknowledgements a leader must receive before a write is considered successful.