Controller startup options

Usage of ./go/bin/controller:
      --kubeconfig string                Path to a kubeconfig. Only required/allowed if running out-of-cluster
      --lease_namespace string           Lease namespace. Required if running out-of-cluster;
                                         otherwise defaults to controller's namespace
      --lease_name string                Lease name. Required
      --lease_id string                  Lease ID. Optional; if unspecified, a unique ID will be generated
      --add_dir_header                   If true, adds the file directory to the header of the log messages
      --alsologtostderr                  log to standard error as well as files
      --log_backtrace_at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
      --log_dir string                   If non-empty, write log files in this directory
      --log_file string                  If non-empty, use this log file
      --log_file_max_size uint           Defines the maximum size a log file can grow to. Unit is megabytes. 
                                         If the value is 0, the maximum file size is unlimited. (default 1800)
      --logtostderr                      log to standard error instead of files (default true)
      --one_output                       If true, only write logs to their native severity level
                                         (vs also writing to each lower severity level)
      --skip_headers                     If true, avoid header prefixes in the log messages
      --skip_log_headers                 If true, avoid headers when opening log files
      --stderrthreshold severity         logs at or above this threshold go to stderr (default 2)
  -v, --v Level                          number for the log level verbosity
      --vmodule moduleSpec               comma-separated list of pattern=N settings for file-filtered logging