Terraform-Day2-2

Steed47 — Tue, 19 Sep 2023 08:55:50 +0000

# Write a terraform code would create following resources


#Resource to create a SSH private key
resource "tls_private_key" "kahwo_key" {
  algorithm = "RSA"
  rsa_bits  = 4096
}

resource "aws_key_pair" "kahwo_key_pair" {
  key_name   = "kahwo-keypair"
  public_key = tls_private_key.kahwo_key.public_key_openssh
}



# - Display a pvt on Console

output "private_key" {
  value = tls_private_key.kahwo_key.private_key_pem
  sensitive = true
}

# - Create a Security group must open 80 Port

resource "aws_security_group" "NSG-kahwo" {
  name        = "kahwo-security-group"
  description = "Open Port 80"

  # Ingress rule for HTTP (port 80)
  ingress {
    from_port   = 80
    to_port     = 80
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"] 
  }

  # Ingress rule for SSH (port 22)
  ingress {
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"] 
  }
  egress {
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }



}


# - Create a Ec2 instance Ubuntu using the same Key & SG which you created above.
resource "aws_instance" "create_ec2" {
  ami           = "ami-053b0d53c279acc90"
  instance_type = "t2.micro"
  key_name      = aws_key_pair.kahwo_key_pair.key_name
  vpc_security_group_ids = [aws_security_group.NSG-kahwo.id]
  tags = {
    Name = "kahwo"
  }

  connection {
      type     = "ssh"
      user     = "ubuntu"
      private_key = tls_private_key.kahwo_key.private_key_pem
      #host = aws_instance.web.public_ip
      host = self.public_ip
  }

  provisioner "remote-exec" {
    inline = [
      "sudo apt-get update",
      "sudo apt-get install apache2 -y",
      "sudo systemctl start apache2"
    ]
  }
}

Terrafom 19/9/2023

Steed47 — Tue, 19 Sep 2023 01:32:25 +0000

Why do we need terraform?
Terraform is needed for infrastructure as code (IaC), to automate tedious manual tasks, so can save manhours. Automation through terraform also able minimize human errors, and operate 24/7.

What is Providers?
Plugins that allow us to interact with and manage infrastructure and service platforms, example : AWS, Azure, Google Cloud.

What is Resources?
Infrastructure that we define and manage. These resources represent various components of infrastructure, such as virtual machines, networks, and more

List out Top 8 Commands which we have learnt so far?
Terraform init, terraform plan, terraform apply, terraform destroy, terraform output, terraform validate

What are the block we have used in .tf file?
To define various configuration elements for infrastructure resources

Debug School: Steed47

Terraform-Day2-2

Terrafom 19/9/2023