Node.js App Deployment with Terraform & Ansible

Deploy a Node.js application on AWS EC2 using Terraform for infrastructure and Ansible for application deployment.

Note: The Node.js application code is in a separate repository and will be automatically cloned during deployment.

Prerequisites

• Terraform installed
• Ansible installed
• AWS account with configured credentials
• AWS key pair (.pem file)
• Git installed

Setup Instructions

1. Clone Repository

git clone https://github.com/<username>/nodejs-app-deployment.git
cd nodejs-app-deployment

2. Configure Ansible Inventory

Edit ansible/inventory.ini:

[ec2]
ubuntu@<PUBLIC_IP> ansible_ssh_private_key_file=/path/to/your/key.pem ansible_ssh_common_args='-o StrictHostKeyChecking=no'

⚠️ Do NOT commit your .pem file to version control

3. Deploy Infrastructure

cd terraform
terraform init
terraform plan
terraform apply

Type yes when prompted.

4. Deploy Application

cd ../ansible
ansible-playbook -i inventory.ini playbook.yml

5. Access Application

Navigate to: http://<PUBLIC_IP>:3007

Deployment Screenshots

Ansible Deployment

Application Running

Project Structure

nodejs-app-deployment/
├── terraform/           # Infrastructure code
├── ansible/            # Configuration & deployment
│   ├── inventory.ini   # Server details
│   └── playbook.yml    # Deployment tasks
└── README.md

Configuration

Update variables directly in your Terraform files as needed for your specific AWS setup.

Troubleshooting

SSH Connection Issues:

• Check .pem file path in inventory.ini
• Set correct permissions: chmod 400 your-key.pem
• Verify EC2 instance is running

Terraform Errors:

• Confirm AWS credentials are configured
• Ensure key pair exists in specified region
• Check AWS permissions

Application Not Loading:

• Verify security group allows port 3007
• Check public IP address
• SSH to instance and verify app status

Cleanup

cd terraform
terraform destroy

Commands Reference

Action	Command
Deploy infrastructure	terraform apply
Deploy application	ansible-playbook -i inventory.ini playbook.yml
Destroy infrastructure	terraform destroy
Debug Ansible	ansible-playbook -i inventory.ini playbook.yml -vvv