message: Allow group access
diff: export SB_PUBLIC_IP=${SB_PUBLIC_IP:-$(curl https://ipinfo.io/ip)}
  export SB_METRICS_URL=${SB_METRICS_URL:-https://metrics-prod.uproxy.org}
  -# Make sure we don't leave readable files behind.
  -umask 0077
  +# Make sure we don't leak readable files to other users.
  +umask 0007
  # The maximum number of files that can be opened by ss-server greatly
  # influence on performance, as described here:
  