Hosting Node.js applications on AWS EC2 (Elastic Compute Cloud) provides developers with flexibility, scalability, and control over their backend infrastructure. This guide outlines the steps to deploy a Node.js backend application on an EC2 instance, ensuring efficient management and optimal performance. Prerequisites Before proceeding, ensure you have the following: • An AWS account with access to EC2 • Node.js application code ready for deployment Step 1: Launching an EC2 Instance Sign in to AWS Management Console: o Navigate to EC2 Dashboard. o Click on "Launch Instance" to start the instance creation process. Choose an Amazon Machine Image (AMI): o Select a suitable AMI (Amazon Linux, Ubuntu, etc.) based on your application requirements. 3.Choose Instance Type: o Select an instance type (e.g., t2.micro for low traffic, or choose based on your performance needs). Key pair (login): o Create or select an existing key pair to securely connect to your instance. 5. Configure Instance: o Configure instance details such as network settings, storage, and security groups. Add Tags (Optional): o Assign tags for easier instance management. Configure Security Group: o Create or select an existing security group to define inbound and outbound rules. Ensure HTTP (port 80) and HTTPS (port 443) are open for web traffic. 8. Review and Launch: o Review your instance configuration and launch the instance. Step 2: Connecting to Your EC2 Instance SSH into the Instance: o Use SSH to connect to your instance using the key pair you downloaded during instance launch. Command 1: “ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns” The PEM file won't be accessible for reading by default. You need to grant read permissions. Replace path_to_your_key.pem with the path to your private key file and your_ec2_instance_public_dns with your EC2 instance's public DNS. Now, your terminal is connected to your AWS EC2 instance. Install Node.js and NPM: • Update the package index and install Node.js and npm. Command 2: sudo apt-get update -y Command 3: sudo apt-get install nodejs npm -y Copy Your Application Code from Git or thru FTP like FileZilla: 3a. Thru filezilla: 3b. Thru Git: Step 3: Running Your Node.js Application Install Dependencies: o Navigate to your application directory on the EC2 instance and install dependencies using npm. Command 4: cd /path_on_ec2/your_app Command 5: npm install or npm i Start Your Application: • Use node or a process manager like pm2 to start your Node.js application. Command 6: node app.js <or> pm2 start app.js <or> pm2 start index.js Access Your Application: • Open a web browser and navigate to your EC2 instance's public IP address or DNS name to access your Node.js application. All done! Node JS backend application is deployed on the cloud. Step 4: Ensuring Scalability and High Availability Auto Scaling: o Configure Auto Scaling groups to automatically add or remove instances based on traffic patterns. Load Balancing: o Use Elastic Load Balancing (ELB) to distribute incoming traffic across multiple EC2 instances for improved performance and fault tolerance. Hosting a Node.js backend application on AWS EC2 provides a robust foundation for scalable and reliable web services. By following these steps, you can deploy and manage your application efficiently, leveraging AWS's cloud infrastructure to meet your application's growing demands. Reference: AWS Documentation: Amazon EC2 Documentation Hosting Node.js applications on AWS EC2 (Elastic Compute Cloud) provides developers with flexibility, scalability, and control over their backend infrastructure. This guide outlines the steps to deploy a Node.js backend application on an EC2 instance, ensuring efficient management and optimal performance. Prerequisites Before proceeding, ensure you have the following: • An AWS account with access to EC2 • Node.js application code ready for deployment Prerequisites Prerequisites Step 1 : Launching an EC2 Instance Step 1 Sign in to AWS Management Console: o Navigate to EC2 Dashboard. Sign in to AWS Management Console: o Navigate to EC2 Dashboard. Sign in to AWS Management Console: o Navigate to EC2 Dashboard. o Click on "Launch Instance" to start the instance creation process. Choose an Amazon Machine Image (AMI): o Select a suitable AMI (Amazon Linux, Ubuntu, etc.) based on your application requirements. 3.Choose Instance Type: o Select an instance type (e.g., t2.micro for low traffic, or choose based on your performance needs). Choose an Amazon Machine Image (AMI): o Select a suitable AMI (Amazon Linux, Ubuntu, etc.) based on your application requirements. 3.Choose Instance Type: o Select an instance type (e.g., t2.micro for low traffic, or choose based on your performance needs). Choose an Amazon Machine Image (AMI): o Select a suitable AMI (Amazon Linux, Ubuntu, etc.) based on your application requirements. 3.Choose Instance Type: o Select an instance type (e.g., t2.micro for low traffic, or choose based on your performance needs). o Select an instance type (e.g., t2.micro for low traffic, or choose based on your performance needs). Key pair (login): o Create or select an existing key pair to securely connect to your instance. 5. Configure Instance: o Configure instance details such as network settings, storage, and security groups. Key pair (login): o Create or select an existing key pair to securely connect to your instance. 5. Configure Instance: o Configure instance details such as network settings, storage, and security groups. Key pair (login): o Create or select an existing key pair to securely connect to your instance. 5. Configure Instance: o Configure instance details such as network settings, storage, and security groups. Add Tags (Optional): o Assign tags for easier instance management. Configure Security Group: o Create or select an existing security group to define inbound and outbound rules. Ensure HTTP (port 80) and HTTPS (port 443) are open for web traffic. 8. Review and Launch: o Review your instance configuration and launch the instance. Add Tags (Optional): o Assign tags for easier instance management. Add Tags (Optional): o Assign tags for easier instance management. Configure Security Group: o Create or select an existing security group to define inbound and outbound rules. Ensure HTTP (port 80) and HTTPS (port 443) are open for web traffic. 8. Review and Launch: o Review your instance configuration and launch the instance. Configure Security Group: o Create or select an existing security group to define inbound and outbound rules. Ensure HTTP (port 80) and HTTPS (port 443) are open for web traffic. 8. Review and Launch: o Review your instance configuration and launch the instance. Step 2: Connecting to Your EC2 Instance Step 2: Connecting to Your EC2 Instance Step 2: Connecting to Your EC2 Instance SSH into the Instance: o Use SSH to connect to your instance using the key pair you downloaded during instance launch. Command 1: “ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns” The PEM file won't be accessible for reading by default. You need to grant read permissions. SSH into the Instance: o Use SSH to connect to your instance using the key pair you downloaded during instance launch. Command 1: “ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns” The PEM file won't be accessible for reading by default. You need to grant read permissions. SSH into the Instance: o Use SSH to connect to your instance using the key pair you downloaded during instance launch. Command 1: “ ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns ” ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns ssh -i path_to_your_key_from_local_machine.pem ec2-user@your_ec2_instance_public_dns The PEM file won't be accessible for reading by default. You need to grant read permissions. The PEM file won't be accessible for reading by default. You need to grant read permissions. The PEM file won't be accessible for reading by default. You need to grant read permissions. Replace path_to_your_key.pem with the path to your private key file and your_ec2_instance_public_dns with your EC2 instance's public DNS. Now, your terminal is connected to your AWS EC2 instance. Install Node.js and NPM: • Update the package index and install Node.js and npm. Command 2: sudo apt-get update -y Command 3: sudo apt-get install nodejs npm -y Install Node.js and NPM: • Update the package index and install Node.js and npm. Command 2: sudo apt-get update -y Command 3: sudo apt-get install nodejs npm -y Install Node.js and NPM: • Update the package index and install Node.js and npm. Command 2: sudo apt-get update -y Command 3: sudo apt-get install nodejs npm -y sudo apt-get update -y sudo apt-get update -y sudo apt-get install nodejs npm -y sudo apt-get install nodejs npm -y Copy Your Application Code from Git or thru FTP like FileZilla: 3a. Thru filezilla: Copy Your Application Code from Git or thru FTP like FileZilla: 3a. Thru filezilla: Copy Your Application Code from Git or thru FTP like FileZilla: 3a. Thru filezilla : filezilla 3b. Thru Git : Git Step 3: Running Your Node.js Application Step 3: Running Your Node.js Application Step 3: Running Your Node.js Application Install Dependencies: o Navigate to your application directory on the EC2 instance and install dependencies using npm. Command 4: cd /path_on_ec2/your_app Command 5: npm install or npm i Start Your Application: • Use node or a process manager like pm2 to start your Node.js application. Command 6: node app.js <or> pm2 start app.js <or> pm2 start index.js Install Dependencies: o Navigate to your application directory on the EC2 instance and install dependencies using npm. Command 4: cd /path_on_ec2/your_app Command 5: npm install or npm i Start Your Application: • Use node or a process manager like pm2 to start your Node.js application. Command 6: node app.js <or> pm2 start app.js <or> pm2 start index.js Install Dependencies: o Navigate to your application directory on the EC2 instance and install dependencies using npm. Command 4: cd /path_on_ec2/your_app Command 5: npm install or npm i cd /path_on_ec2/your_app cd /path_on_ec2/your_app npm install npm install npm i npm i Start Your Application: • Use node or a process manager like pm2 to start your Node.js application. Command 6: node app.js <or> pm2 start app.js <or> pm2 start index.js Start Your Application: • Use node or a process manager like pm2 to start your Node.js application. Command 6: node app.js <or> pm2 start app.js <or> pm2 start index.js node app.js node app.js pm2 start app.js pm2 start app.js pm2 start index.js pm2 start index.js Access Your Application: • Open a web browser and navigate to your EC2 instance's public IP address or DNS name to access your Node.js application. Access Your Application: • Open a web browser and navigate to your EC2 instance's public IP address or DNS name to access your Node.js application. Access Your Application: • Open a web browser and navigate to your EC2 instance's public IP address or DNS name to access your Node.js application. All done! Node JS backend application is deployed on the cloud. Step 4: Ensuring Scalability and High Availability Step 4: Ensuring Scalability and High Availability Step 4: Ensuring Scalability and High Availability Auto Scaling: o Configure Auto Scaling groups to automatically add or remove instances based on traffic patterns. Load Balancing: o Use Elastic Load Balancing (ELB) to distribute incoming traffic across multiple EC2 instances for improved performance and fault tolerance. Auto Scaling: o Configure Auto Scaling groups to automatically add or remove instances based on traffic patterns. Auto Scaling : o Configure Auto Scaling groups to automatically add or remove instances based on traffic patterns. Auto Scaling Load Balancing: o Use Elastic Load Balancing (ELB) to distribute incoming traffic across multiple EC2 instances for improved performance and fault tolerance. Load Balancing: o Use Elastic Load Balancing (ELB) to distribute incoming traffic across multiple EC2 instances for improved performance and fault tolerance. Load Balancing: Hosting a Node.js backend application on AWS EC2 provides a robust foundation for scalable and reliable web services. By following these steps, you can deploy and manage your application efficiently, leveraging AWS's cloud infrastructure to meet your application's growing demands. Reference : AWS Documentation: Amazon EC2 Documentation Reference Reference Amazon EC2 Documentation