Instance deployment failed to generate a 'Procfile' for Node.js. Provide one of these files: 'package.json', 'server.js', or 'app.js'. The deployment failed.

Question

I'm trying to deploy a React frontend application on Elastic Beanstalk, environment is Node.js 20.
I'm using pipeline from the github repo

here is the error i'm getting

```
Deployment completed, but with errors: During an aborted deployment, some instances may have deployed the new application version. To ensure all instances are running the same version, re-deploy the appropriate application version. Failed to deploy application. Unsuccessful command execution on instance id(s) 'i-0d97be8c4b936bd1b'. Aborting the operation. [Instance: i-0d97be8c4b936bd1b] Command failed on instance. Return code: 1 Output: Engine execution has encountered an error.. Instance deployment failed. For details, see 'eb-engine.log'. Instance deployment failed to generate a 'Procfile' for Node.js. Provide one of these files: 'package.json', 'server.js', or 'app.js'. The deployment failed.
```

buildspec.yaml

```
version: 0.2

phases:
  install:
    commands:
      - echo Installing source NPM dependencies...
      - npm install
  pre_build:
    commands:
      - echo Running pre-build commands...
      - npm install -g serve
  build:
    commands:
      - echo Build started on `date`
      - npm run build
  post_build:
    commands:
      - echo Build completed on `date`
      - echo Installing dependencies for production...
      - npm prune --production

artifacts:
  files:
    - '**/*'
  base-directory: dist

cache:
  paths:
    - node_modules/**/*

```

package.json

```
{
  "name": "my-germany-translator-app",
  "private": true,
  "version": "0.0.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "tsc -b && vite build",
    "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
    "preview": "vite preview",
    "start": "node server.js"
  },
  "dependencies": {
    "@emotion/react": "^11.13.0",
    "@emotion/styled": "^11.13.0",
    "@mui/base": "^5.0.0-beta.40",
    "@mui/system": "^5.16.6",
    "react": "^18.3.1",
    "react-dom": "^18.3.1"
  },
  "devDependencies": {
    "@types/react": "^18.3.3",
    "@types/react-dom": "^18.3.0",
    "@typescript-eslint/eslint-plugin": "^7.15.0",
    "@typescript-eslint/parser": "^7.15.0",
    "@vitejs/plugin-react": "^4.3.1",
    "eslint": "^8.57.0",
    "eslint-plugin-react-hooks": "^4.6.2",
    "eslint-plugin-react-refresh": "^0.4.7",
    "typescript": "^5.2.2",
    "vite": "^5.3.4"
  },
  "engines": {
    "node": "20.x"
  }
}

```

server.js

```
const express = require('express');
const path = require('path');

const app = express();
const port = process.env.PORT || 3000;

// Serve the static files from the React app
app.use(express.static(path.join(__dirname, 'dist')));

// Handles any requests that don't match the ones above
app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname, 'dist', 'index.html'));
});

// Start the server
app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});

```
Files structure 
![Enter image description here](/media/postImages/original/IMiKOwa01yT6OG00YJFROqmw)

Parthasaradi · Answer

Hello.

To resolve the issue with your Elastic Beanstalk deployment, follow these below steps.

**1. Create a Procfile**

* Create a Procfile in the root directory of your project to tell Elastic Beanstalk how to start your application. 
* The content should be

> web: node server.js

**2. Update Buildspec Configuration**

* Ensure your buildspec.yaml correctly includes all necessary files for deployment. 
* Modify it as follows

```
version: 0.2

phases:
  install:
    commands:
      - echo Installing source NPM dependencies...
      - npm install
  pre_build:
    commands:
      - echo Running pre-build commands...
      - npm install -g serve
  build:
    commands:
      - echo Build started on `date`
      - npm run build
  post_build:
    commands:
      - echo Build completed on `date`
      - echo Installing dependencies for production...
      - npm prune --production

artifacts:
  files:
    - '**/*'
    - 'Procfile'
    - 'package.json'
    - 'server.js'
  base-directory: dist

cache:
  paths:
    - node_modules/**/*

```

**3. Redeploy the Application**

* Commit the changes to your GitHub repository.
* Trigger a new build in your pipeline to deploy the updated code.

**4. Check Logs if Needed**

* If the deployment fails again, check the eb-engine.log for specific errors:
* Access the Elastic Beanstalk environment.
* Go to "Logs" and request the "Last 100 lines" or "Full logs" to review the eb-engine.log

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/nodejs-configuration-procfile.html

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_nodejs.container.html

Thanniru Anil Kumar · Answer

**Steps to Resolve**

**Ensure the package.json and server.js are in the Root Directory:**

Make sure that both package.json and server.js are in the root directory of your project. Elastic Beanstalk should be able to find these files directly.

**Add a Procfile (Optional but Recommended):**

A Procfile can explicitly define how your application should be started. You can add a Procfile to the root of your project with the following content:

```
web: node server.js

```
This tells Elastic Beanstalk to use node server.js to start the application.

**Verify the Build Output Location:**

In your buildspec.yaml, you have base-directory: dist. Ensure that after the build, the output files (including index.html and other assets) are indeed in the dist directory.

**Check the Elastic Beanstalk Logs:**

Inspect the eb-engine.log on the failed instance for more details on what went wrong. You can do this by logging into the EC2 instance or by using the Elastic Beanstalk console:

```
eb ssh
sudo less /var/log/eb-engine.log

```
**Re-Deploy the Application**:

After making the necessary adjustments, re-deploy your application using the pipeline or the Elastic Beanstalk console.

**Ensure Correct Node.js Version:**

You've specified "node": "20.x" in package.json. Make sure that the Elastic Beanstalk environment is configured to use Node.js 20. You can set this in the Elastic Beanstalk console under the "Software" configuration.

Please follow below Document

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/nodejs-configuration-procfile.html

Instance deployment failed to generate a 'Procfile' for Node.js. Provide one of these files: 'package.json', 'server.js', or 'app.js'. The deployment failed.

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