kops rolling-update

    2.       --alsologtostderr                  log to standard error as well as files
    3.       --log_backtrace_at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
    4.       --log_dir string                   If non-empty, write log files in this directory
    6.       --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)
    7.       --logtostderr                      log to standard error instead of files (default true)
    8.       --name string                      Name of cluster. Overrides KOPS_CLUSTER_NAME environment variable
    10.       --skip_log_headers                 If true, avoid headers when opening log files
    11.       --state string                     Location of state storage (kops 'config' file). Overrides KOPS_STATE_STORE environment variable
    12.       --stderrthreshold severity         logs at or above this threshold go to stderr (default 2)
    13.   -v, --v Level                          number for the log level verbosity