Assignment

Li Xuan — Tue, 19 Sep 2023 06:10:02 +0000

Keypair
variable "EC2_Key" {default="httpdserverkey"}
resource "tls_private_key" "httpdkey" {
algorithm = "RSA"
rsa_bits = 4096
}

// Creating AWS key-pair

resource "aws_key_pair" "li_key" {
key_name   = var.EC2_Key
public_key = tls_private_key.httpdkey.public_key_openssh
}

// Creating security group

resource "aws_security_group" "httpdsecurity" {

depends_on = [
    aws_key_pair.li_key,
]

name         = "httpdsecurity"
description = "allow ssh and httpd"

ingress {
    description = "SSH Port"
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
}
ingress {
    description = "HTTPD Port"
    from_port   = 80
    to_port     = 80
    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"]
}
tags = {
    Name = "httpdsecurity"
}
}

Ubuntu
// Creating EC2 Instance and Installing Required Softwares in it.

resource "aws_instance" "HttpdInstance" {

depends_on = [
    aws_security_group.httpdsecurity,
]

ami           = "ami-0447a12f28fddb066"
instance_type = "t2.micro"
key_name      = var.EC2_Key
security_groups = [ "${aws_security_group.httpdsecurity.name}" ]
connection {
    type     = "ssh"
    user     = "ec2-user"
    private_key = tls_private_key.httpdkey.private_key_pem
    host     = aws_instance.HttpdInstance.public_ip
}
provisioner "remote-exec" {
    inline = [
"sudo apt-get update",
      "sudo apt-get install apache2 -y",
"sudo HttpdServer1 start apache2",
]
}

tags = {
    Name = "HttpdServer1"
}
}

Terraform

Li Xuan — Tue, 19 Sep 2023 01:29:46 +0000

Why do we need terraform?
To code all cloud infrastructure from different providers in one language.

What is Providers?
Company that provide the cloud infrastructure

What is Resources?
Various infrastructure objects such as: virtual machines, vpc.

List out Top 8 Commands which we have learnt so far?
Terraform init
Terraform validate
Terraform plan
Terraform apply
Terraform show
Terraform destroy
Terraform apply —-auto-approve
Terraform output

What are the block we have used in .tf file? Explain in Short
Can be used to specify which part of terraform cloud we would like to configure

Debug School: Li Xuan

Assignment

Terraform