IaaS

Jan 1, 0001

Definition

Infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet. It allows users to rent IT infrastructure—such as servers, storage, and networking—on a pay-as-you-go basis. This model offers flexibility and scalability, enabling users to deploy and manage operating systems and applications without the need to purchase and maintain physical hardware.

Secure Settings Example

# Example of a secure IaaS configuration using Terraform for AWS
resource "aws_instance" "secure_example" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"

  # Enable encryption for root and additional volumes
  root_block_device {
    encrypted = true
  }

  # Use IAM roles for secure access
  iam_instance_profile = "secure-instance-profile"

  # Security group with least privilege
  vpc_security_group_ids = ["sg-0123456789abcdef0"]

  # Enable monitoring and logging
  monitoring = true
}

Insecure Settings Example

# Example of an insecure IaaS configuration using Terraform for AWS
resource "aws_instance" "insecure_example" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"

  # No encryption for root and additional volumes
  root_block_device {
    encrypted = false
  }

  # Directly using access keys instead of IAM roles
  access_key = "AKIAIOSFODNN7EXAMPLE"
  secret_key = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"

  # Security group with wide-open access
  vpc_security_group_ids = ["sg-0987654321fedcba0"]

  # Monitoring and logging disabled
  monitoring = false
}