What tools have you used for infrastructure management automation with code?

Tools commonly used for automating infrastructure management with code (Infrastructure as Code, IaC) include:

• Terraform — allows describing infrastructure in a declarative manner and managing resources in clouds and local environments.
• Ansible — a tool for automation of configuration and deployment, using YAML playbooks.
• Chef and Puppet — configuration management systems that allow describing the state of servers and automatically bringing them to the desired state.
• CloudFormation (for AWS) — a declarative service for describing and deploying AWS resources.

An example of a simple Terraform configuration for creating a virtual machine:

provider "aws" {
  region = "us-west-2"
}

resource "aws_instance" "example" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"
}

These tools help automate the creation, configuration, and management of infrastructure, reducing manual labor and errors.