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is an intelligent, zero-config utility that automatically analyzes your Node.js projects, detects frameworks, databases, and capabilities, and generates optimized, production-ready `Dockerfile` and `.dockerignore` files customized for your proj","maintainers":[{"name":"aayush-dev","email":"aayushbhatt28306@gmail.com"}],"readme":"# 🐳 Dockerizer\n\nDockerizer is an intelligent, zero-config utility that automatically analyzes your Node.js projects, detects frameworks, databases, and capabilities, and generates optimized, production-ready `Dockerfile` and `.dockerignore` files customized for your project.\n\n---\n\n## 🔄 Interactive Flow of the Application\n\nBelow is an interactive and visual overview of how Dockerizer processes your application. Expand each step to see the underlying code files and operations!\n\n### 📊 Pipeline Architecture\n```mermaid\ngraph TD\n Start([index.js]) -->|Calls| Orchestrator[analyze.js]\n Orchestrator -->|1. Walk Dir| Scanner[walkDirectory.js]\n Orchestrator -->|2. Parse Dependencies| Analyzer[packageAnalyzer.js]\n Orchestrator -->|3. Match Tech Stack| Detector[frameworkDetector.js]\n Orchestrator -->|4. Get User Preferences| Questions[askQuestions / CLI Prompts]\n Orchestrator -->|5. Build & Cmd Config| Configurator[Auto-resolve CMD & Build Steps]\n Configurator -->|6. Generate Files| Generator[dockerfileGenerator.js]\n Generator -->|Writes| Dockerfile[Dockerfile]\n Generator -->|Writes| Dockerignore[.dockerignore]\n\n classDef stage fill:#2b3a4a,stroke:#3b82f6,stroke-width:2px,color:#fff;\n classDef files fill:#1e293b,stroke:#10b981,stroke-width:2px,color:#fff;\n class Scanner,Analyzer,Detector,Generator,Questions files;\n class Orchestrator stage;\n```\n\n---\n\n## 🛠️ Step-by-Step Breakdown (Click to Expand)\n\n\n1. Entry Point & Orchestration
\n
\n\n- **File:** [index.js](file:///d:/Programs/Projects/dockerizer/index.js)\n- **Role:** Serves as the CLI entry point. It bootstraps the entire analyzer command.\n- **Orchestration File:** [src/commands/analyze.js](file:///d:/Programs/Projects/dockerizer/src/commands/analyze.js)\n - Coordinates all components by feeding output from the scanner and analyzer into the detector, verifying configurations with the user, and invoking the generator.\n\n \n\n\n2. Project Scanner
\n
\n\n- **File:** [src/scanner/walkDirectory.js](file:///d:/Programs/Projects/dockerizer/src/scanner/walkDirectory.js)\n- **Role:** Recursively crawls the current working directory (`process.cwd()`).\n- **Details:**\n - Ignores large/system folders like `node_modules` and `.git`.\n - Normalizes file paths cross-platform to forward slashes (`/`).\n - Identifies if critical configuration files (e.g. `package.json`, `package-lock.json`) exist.\n\n \n\n\n3. Dependency Analyzer
\n
\n\n- **File:** [src/analyzer/packageAnalyzer.js](file:///d:/Programs/Projects/dockerizer/src/analyzer/packageAnalyzer.js)\n- **Role:** Inspects project-specific metadata.\n- **Details:**\n - Reads the root-level `package.json`.\n - Extracts lists of `dependencies` and `devDependencies`.\n - Checks if a main entry point (`main`) or executable start/dev scripts are defined.\n\n \n\n\n4. Framework & Feature Detector
\n
\n\n- **File:** [src/detectors/frameworkDetector.js](file:///d:/Programs/Projects/dockerizer/src/detectors/frameworkDetector.js)\n- **Role:** Matches project dependencies against known tech-stack blueprints.\n- **Detections:**\n - **Frameworks:** `express`, `next`, `nest`, `fastify`, `koa`, `react`, `react-vite`, `vue`, `nuxt`, `angular`, `svelte`, or default `node`.\n - **Databases:** `mongodb`, `postgresql`, `mysql`, `sqlite`, or `sequelize`.\n - **Support Features:** Realtime connections (`socket.io`, `ws`), File Uploads (`multer`, `formidable`), and Caching (`redis`, `ioredis`).\n\n \n\n\n5. Interactive Customizer
\n
\n\n- **Function:** `askQuestions` in [src/commands/analyze.js](file:///d:/Programs/Projects/dockerizer/src/commands/analyze.js)\n- **Role:** Interactive user confirmation.\n- **Details:**\n - Displays the auto-detected configuration.\n - If some features were not detected, allows the user to manually override and set databases, realtime, caching, or file uploads.\n - Asks for the port to expose in the container, suggesting sensible framework defaults (e.g., `8000` for Express, `80` for React, `3000` for general node).\n\n \n\n\n6. CMD & Build Resolution
\n
\n\n- **Function:** inside [src/commands/analyze.js](file:///d:/Programs/Projects/dockerizer/src/commands/analyze.js)\n- **Role:** Computes Docker build steps.\n- **Details:**\n - Resolves standard run commands: `npm start`, `npm run dev`, or `node .js` based on scripts and entrypoints.\n - Appends Vite host flags (`-- --host`) if necessary so the dev server binds correctly inside the container.\n - Determines if a build step (`RUN npm run build`) is required for front-end and SPA architectures.\n\n \n\n\n7. Dockerfile & Ignore Generator
\n
\n\n- **File:** [src/generators/dockerfileGenerator.js](file:///d:/Programs/Projects/dockerizer/src/generators/dockerfileGenerator.js)\n- **Role:** Writes the final production files.\n- **Details:**\n - Dynamically selects one of the templates from `templates/` (e.g. `node`, `express`, `next`, `react`).\n - Injects variables:\n * `{{NODE_VERSION}}`: Inherited directly from your local machine's running Node.js version.\n * `{{PORT}}`: User-confirmed port.\n * `{{BUILD_STEP}}`: E.g. `RUN npm run build`.\n * `{{CMD}}`: Start command formatted as a JSON array (e.g. `[\"npm\", \"start\"]`).\n - Generates `.dockerignore` to keep your Docker context clean, excluding build logs, local node modules, and credentials/environment files (`.env`).\n\n \n\n---\n\n## 🚀 Getting Started\n\nRun the tool in your project root:\n```bash\nnpx @aayush-dev/dockerizer\n```\nThe terminal will guide you through confirmation, and output your configured `Dockerfile` and `.dockerignore`!\n\n","readmeFilename":"README.md"}