node/docker-entrypoint.sh

#!/bin/bash

export IP=$( hostname -i )

cat <<EOF
                     __                  _
 ___ _ ____   __    / /  _ __   ___   __| | ___
/ __| '__\ \ / /   / /  | '_ \ / _ \ / _\` |/ _ \\
\__ \ |   \ V /   / /   | | | | (_) | (_| |  __/
|___/_|    \_/   /_/    |_| |_|\___/ \__,_|\___|
------------------------------------------------
 IP: $IP

EOF

if [[ ! -d "node_modules" ]]; then
  echo "node_modules does not exist."
  if [[ -f "package.json" ]]; then
    npm install
  fi
fi

if [[ -z "$@" ]]; then
  if [[ -f "package.json" ]]; then
    PACKAGE_JSON_START=$( cat package.json | jq -r '.scripts.start // empty' )
    if [[ -z "$PACKAGE_JSON_START" ]]; then
      echo "package.json found, but no start script, starting bash..."
      exec bash
    else
      exec $PACKAGE_JSON_START
    fi
  else
    echo "No package.json found, starting bash..."
    exec bash
  fi
else
  exec $@
fi