wsp image build

usage: wsp image build <place> [--force]
  builds this host's image at a place from the record, its sign-ins coming from
  the vault and no sign-in run again

  --force    build again even where the place already holds this version
  --json     print the raw protocol values, one JSON object per line, with
             everything else on stderr
  --state    the state file the host serves
  --host     run the line against a host on your account, by the name wsp hosts
             lists it under; WSP_HOST names one for a whole shell