HANB Installation Tutorial with Terraform for HPC Cluster

== HANB Installation Tutorial with Terraform for HPC Cluster ==

=== Prerequisites ===
* Ensure you have the following installed:
** [https://www.terraform.io/downloads.html Terraform]
** [https://www.ansible.com/ Ansible] (optional for configuration management)
* Access to a cloud provider (e.g., AWS, Azure, GCP) with appropriate permissions.
* Basic knowledge of Terraform and HPC concepts.

=== Step 1: Set Up Your Terraform Environment ===
1. Create a new directory for your Terraform configuration:
   <code>mkdir hanb-hpc-cluster</code>
   <code>cd hanb-hpc-cluster</code>

2. Create a new Terraform configuration file:
   <code>touch main.tf</code>

=== Step 2: Define Your Provider ===
In your <code>main.tf</code> file, define the provider you will be using. For example, for AWS:
<code>
provider "aws" {
  region = "us-west-2"
}
</code>

=== Step 3: Define Your HPC Cluster Resources ===
Add the resources for your HPC cluster. Here’s an example configuration:
<code>
resource "aws_instance" "hpc_node" {
  count         = 5
  ami           = "ami-0c55b159cbfafe1f0" # Replace with your desired AMI
  instance_type = "c5.large"

  tags = {
    Name = "HPC-Node-${count.index}"
  }
}
</code>

=== Step 4: Configure HANB ===
Add the configuration for HANB. This may include setting up storage and networking:
<code>
resource "aws_ebs_volume" "hanb_storage" {
  count = 5
  size  = 100 # Size in GB
  availability_zone = aws_instance.hpc_node[count.index].availability_zone
}

resource "aws_volume_attachment" "hanb_attachment" {
  count       = 5
  device      = "/dev/sdh"
  volume_id   = aws_ebs_volume.hanb_storage[count.index].id
  instance_id = aws_instance.hpc_node[count.index].id
}
</code>

=== Step 5: Initialize and Apply Your Configuration ===
1. Initialize Terraform:
   <code>terraform init</code>

2. Validate your configuration:
   <code>terraform validate</code>

3. Apply your configuration:
   <code>terraform apply</code>
   Confirm the action by typing <code>yes</code> when prompted.

=== Step 6: Verify Your Installation ===
* After the apply process completes, verify that your HPC cluster is running and that HANB is properly configured.
* You can SSH into your instances to check the status:
   <code>ssh -i your-key.pem ec2-user@your-instance-ip</code>

=== Conclusion ===
You have successfully installed HANB on an HPC cluster using Terraform. For further customization and scaling, refer to the Terraform documentation and your cloud provider's resources.

=== References ===
* [https://www.terraform.io/docs/index.html Terraform Documentation]
* [https://aws.amazon.com/documentation/ AWS Documentation]