message: Return pool ip in dockerfile.
diff: @@ -82,7 +82,7 @@ stderr_logfile=/tmp/node4.log\n'\
  USER indy
  -ARG pool_ip=10.0.0.2
  +ARG pool_ip=127.0.0.1
  RUN awk '{if (index($1, "NETWORK_NAME") != 0) {print("NETWORK_NAME = \"sandbox\"")} else print($0)}' /etc/indy/indy_config.py> /tmp/indy_config.py
  RUN mv /tmp/indy_config.py /etc/indy/indy_config.py
  