usage: ceph-mon -i <ID> [flags]
  --debug_mon n
        debug monitor level (e.g. 10)
  --mkfs
        build fresh monitor fs
  --force-sync
        force a sync from another mon by wiping local data (BE CAREFUL)
  --yes-i-really-mean-it
        mandatory safeguard for --force-sync
  --compact
        compact the monitor store
  --osdmap <filename>
        only used when --mkfs is provided: load the osdmap from <filename>
  --inject-monmap <filename>
        write the <filename> monmap to the local monitor store and exit
  --extract-monmap <filename>
        extract the monmap from the local monitor store and exit
  --use-mon-keyring
        use the mon keyring as authoritative for the mon. secret
  --mon-data <directory>
        where the mon store and keyring are located
  --set-crush-location <bucket>=<foo>        sets monitor's crush bucket location (only for stretch mode)
  --conf/-c FILE    read configuration from the given configuration file
  --id/-i ID        set ID portion of my name
  --name/-n TYPE.ID set name
  --cluster NAME    set cluster name (default: ceph)
  --setuser USER    set uid to user or uid (and gid to user's gid)
  --setgroup GROUP  set gid to group or gid
  --version         show version and quit

  -d                run in foreground, log to stderr
  -f                run in foreground, log to usual location

  --debug_ms N      set message debug level (e.g. 1)