Chi Chang

If the passphrase is not empty while generating gpg key, got following error message when running ``docker login your-registry:5000`` with version v0.6.1. ``` Error saving credentials: error storing credentials -...

Hi @henrichen, Could you please kindly review my changes when you have time? Thanks :)

The Spark ui port [is currently picked from](https://sourcegraph.com/github.com/Yelp/paasta@63e1950ef393e733ccfb770282d7e782dc4390fe/-/blob/paasta_tools/tron_tools.py?L245) `system_paasta_confg` with a default value of 33000. => It should be picked by a [pre-defined port range from spark_constants](https://sourcegraph.com/github.com/Yelp/service_configuration_lib@0d199d9d93712faa37a7aeca0a627883ecbab0e1/-/blob/service_configuration_lib/spark_config.py?L1074-1077) in srv-configs. Which...

Cherry-picked https://github.com/Yelp/paasta/pull/3749

We'll need to upgrade service_configuration_lib to the latest version which includes https://github.com/Yelp/service_configuration_lib/pull/139