hazen-app

#!/bin/bash

# DOCKER REGISTRY INFO
BASE_IMAGE="hazen"
ORGANISATION="gsttmriphysics"
REGISTRY="docker.io"
IMAGE="$REGISTRY/$ORGANISATION/$BASE_IMAGE"

# FUNCTIONS
check_bash(){
  if ! [ -n "$BASH_VERSION" ];then
    echo "Called script with non-bash shell, calling self with bash....";
    SCRIPTPATH="$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
    /bin/bash ${SCRIPTPATH}/hazen-app
    exit;
  fi
}

check_cmd_in_path(){
  cmd=$1
  which $cmd > /dev/null 2>&1 || error 1 "$cmd not found! please install $cmd to continue"
}

check_internet_connections(){
  echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
  if [ $? -eq 0 ]; then
      internet_status=true
    else
      echo "WARNING: No internet connection, unable to verify Hazen version"
      internet_status=false
  fi
}
#

while getopts :b: flag
  do
      case "${flag}" in
        b) BUILD_TAG=${OPTARG}
          shift "$(( OPTIND - 1 ))";;
      esac
  done

# MAIN
check_bash
check_cmd_in_path docker
check_internet_connections

# define requested version with cmd line argument
if [ -z "$BUILD_TAG" ]; then # no command line argument supplied
    APP_IMAGE=$IMAGE:latest
  else
    APP_IMAGE=$IMAGE:$BUILD_TAG
fi

# pull requested version
if [ "$internet_status" = true ]; then
  echo $APP_IMAGE
  docker pull $APP_IMAGE
  else
    echo "No internet connection, unable to check for latest version"
fi

command="docker run \
                --rm \
                --mount type=bind,source=$(pwd),target=/home/hazen_user/data \
                -w /home/hazen_user/data \
                ${APP_IMAGE} $@"

echo running: ${command}

# Set up mounted volumes, environment, and run our containerized command
exec ${command}