run

#!/bin/bash

#>>>>> set display
if [[ "$DISPLAY" = "needs-to-be-defined" ]]; then
  export $DISPLAY=192.168.99.1:0.0;
  echo "# set DISPLAY=192.168.99.1:0.0";
else
  echo "# already set DISPLAY=$DISPLAY";
fi
#<<<<< set display

#>>>>> find image, else pull
export REPO='jehyunlee/work'
export TAG='geo'
export images=$(docker images)
export psan=$(docker ps -a | wc -c)
export psn=$(docker ps | wc -c)
export CONTAINER='geo'


if [[ $images =~ $REPO  ]] && [[ $images =~ $TAG ]]; then
  if [[ 126 < $psn ]] && [[ 126 < $psan ]]; then
    # Case 1: container is running.
    docker attach $CONTAINER;
  elif [[ 126 < $psan ]]; then
    # Case 2: container is stopped. 
    docker start $CONTAINER;
    docker attach $CONTAINER;
  else
    # Case 3: image exists, but container is not prepared
    docker run -it --name=$CONTAINER -e DISPLAY=$DISPLAY -v //c/Arbeitplatz/:/workplace -p 8888:8888 --shm-size 4g $REPO:$TAG;
  fi;
else
  # Case 4: neither image nor container. start from pull image.
  docker pull $REPO:$TAG;
  docker run -it --name=$CONTAINER -e DISPLAY=$DISPLAY -v //c/Arbeitplatz/:/workplace -p 8888:8888 --shm-size 4g $REPO:$TAG;
fi
#<<<<< find image, else pull