nodejs/rootfs/usr/local/etc/docker/init.d/nodejs

#!/usr/bin/env bash
# shellcheck shell=bash
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
##@Version           :  202601290258-git
# @@Author           :  CasjaysDev
# @@Contact          :  CasjaysDev <docker-admin@casjaysdev.pro>
# @@License          :  MIT
# @@ReadME           :
# @@Copyright        :  Copyright 2025 CasjaysDev
# @@Created          :  Wed Jan 29 02:58:00 AM EST 2026
# @@File             :  nodejs
# @@Description      :  Node.js application initialization script
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# shellcheck disable=SC2016
# shellcheck disable=SC2031
# shellcheck disable=SC2120
# shellcheck disable=SC2155
# shellcheck disable=SC2199
# shellcheck disable=SC2317
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APPNAME="$(basename "$0" 2>/dev/null)"
VERSION="202601290258-git"
HOME="${USER_HOME:-$HOME}"
USER="${SUDO_USER:-$USER}"
RUN_USER="${SUDO_USER:-$USER}"
SCRIPT_SRC_DIR="${BASH_SOURCE%/*}"
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# Set bash options
[ "$DEBUGGER" = "on" ] && echo "Enabling debugging" && set -o pipefail -x$DEBUGGER_OPTIONS || set -o pipefail
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# check for command
__cmd_exists() { command -v "$1" >/dev/null 2>&1 || return 1; }
__function_exists() { builtin type -t "${1:-404}" 2>/dev/null | grep -q 'function' || return 1; }
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# Make sure node is installed
if ! __cmd_exists node; then
  echo "Node.js is not installed"
  exit 0
fi
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# Set variables
NODE_ENV="${NODE_ENV:-production}"
NODE_APP_DIR="${NODE_APP_DIR:-}"
NODE_APP_SCRIPT="${NODE_APP_SCRIPT:-}"
NODE_PORT="${NODE_PORT:-${PORT:-3000}}"
NODE_HOST="${NODE_HOST:-0.0.0.0}"
NODE_OPTIONS="${NODE_OPTIONS:-}"
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# Find application directory
if [ -z "$NODE_APP_DIR" ]; then
  for dir in /app /data/app /workspace /usr/src/app; do
    if [ -d "$dir" ]; then
      NODE_APP_DIR="$dir"
      break
    fi
  done
fi
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# Check if app directory exists
if [ -z "$NODE_APP_DIR" ] || [ ! -d "$NODE_APP_DIR" ]; then
  echo "No Node.js application directory found"
  echo "Checked: /app, /data/app, /workspace, /usr/src/app"
  echo "To specify a custom location, set NODE_APP_DIR environment variable"
  exit 0
fi
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# Change to app directory
cd "$NODE_APP_DIR" || exit 1
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# Find the entry script if not specified
if [ -z "$NODE_APP_SCRIPT" ]; then
  if [ -f "package.json" ]; then
    # Try to get the start script from package.json
    if __cmd_exists jq; then
      NODE_APP_SCRIPT="$(jq -r '.main // empty' package.json 2>/dev/null)"
    fi
    # Fallback to common entry points
    [ -z "$NODE_APP_SCRIPT" ] && [ -f "index.js" ] && NODE_APP_SCRIPT="index.js"
    [ -z "$NODE_APP_SCRIPT" ] && [ -f "server.js" ] && NODE_APP_SCRIPT="server.js"
    [ -z "$NODE_APP_SCRIPT" ] && [ -f "app.js" ] && NODE_APP_SCRIPT="app.js"
    [ -z "$NODE_APP_SCRIPT" ] && [ -f "main.js" ] && NODE_APP_SCRIPT="main.js"
  fi
fi
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# Check if we have a valid script to run
if [ -z "$NODE_APP_SCRIPT" ] && [ ! -f "package.json" ]; then
  echo "No Node.js application found in $NODE_APP_DIR"
  echo "Looked for: index.js, server.js, app.js, main.js, package.json"
  exit 0
fi
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# Install dependencies if needed
if [ -f "package.json" ] && [ ! -d "node_modules" ]; then
  echo "Installing Node.js dependencies..."
  if __cmd_exists yarn; then
    yarn install
  elif __cmd_exists pnpm; then
    pnpm install
  else
    npm install
  fi
fi
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# Export environment variables
export NODE_ENV NODE_PORT NODE_HOST NODE_OPTIONS
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echo "Starting Node.js application"
echo "Environment: $NODE_ENV"
echo "Directory: $NODE_APP_DIR"
echo "Port: $NODE_PORT"
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# Start the application based on environment
if [ "$NODE_ENV" = "development" ] || [ "$NODE_ENV" = "dev" ]; then
  echo "Mode: Development (with file watching)"
  
  # Try to use nodemon if available
  if __cmd_exists nodemon; then
    echo "Using nodemon for hot reload"
    if [ -f "package.json" ] && grep -q '"dev"\|"start:dev"' package.json 2>/dev/null; then
      exec npm run dev
    elif [ -n "$NODE_APP_SCRIPT" ]; then
      exec nodemon "$NODE_APP_SCRIPT"
    else
      exec nodemon
    fi
  # Fallback to node with --watch (Node.js 18+)
  elif node --help 2>&1 | grep -q -- '--watch'; then
    echo "Using node --watch for hot reload"
    if [ -n "$NODE_APP_SCRIPT" ]; then
      exec node --watch "$NODE_APP_SCRIPT"
    else
      exec node --watch .
    fi
  # Just use regular node
  else
    echo "Warning: nodemon not found and node --watch not available"
    echo "Install nodemon for hot reload: npm install -g nodemon"
    if [ -n "$NODE_APP_SCRIPT" ]; then
      exec node "$NODE_APP_SCRIPT"
    else
      exec npm start
    fi
  fi
else
  echo "Mode: Production"
  
  # Use package.json start script if available
  if [ -f "package.json" ] && grep -q '"start"' package.json 2>/dev/null; then
    exec npm start
  # Otherwise run the script directly
  elif [ -n "$NODE_APP_SCRIPT" ]; then
    exec node "$NODE_APP_SCRIPT"
  else
    echo "Error: No start script found"
    exit 1
  fi
fi
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# End script