have question about mysql password usage in the linux services file .. is there anyway to hide ? --mysql_database=fleet \ --mysql_username=root \ --mysql_password=password \

There are 3 ways to configure options in this order of precedence: • The config file (which I believe you are doing) • Environment variables • Command-line variables It seems like you want to either use environment variables or command-line variables to achieve your goal. Please see the configuration options section in our docs for more details.