Server options help:

    --no-server           do not use image-build server

    --server-list         lists current image-build servers
    --server-list-details same as -server-list with more details
    --server-cleanup      remove stale image-build servers entries
    --server-shutdown     shutdown image-build servers under current session ID
    --server-shutdown-all shutdown all image-build servers

    --server-session=<custom-session-name>
                          use custom session name instead of system provided
                          session ID of the calling process

    --verbose-server      enable verbose output for image-build server handling
 